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The contents of command.c, creatinh.c, define.c, remove.c and rename.c

Browse Source 
have been divided according to the type of object manipulated - so ALTER
TABLE code is in tablecmds.c, aggregate commands in aggregatecmds.c and
so on.

A few common support routines remain in define.c (prototypes in
src/include/commands/defrem.h).

No code has been changed except for includes to reflect the new files.
The prototypes for aggregatecmds.c, functioncmds.c, operatorcmds.c,
and typecmds.c remain in src/include/commands/defrem.h.

From John Gray <jgray@azuli.co.uk>
ecpg_big_bison
Tom Lane 24 years ago
parent ab1ead6b97
commit 71dc300a37
29 changed files with 3598 additions and 3556 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 13
      src/backend/commands/Makefile
  2. 208
      src/backend/commands/aggregatecmds.c
  3. 5
      src/backend/commands/cluster.c
  4. 932
      src/backend/commands/creatinh.c
  5. 1076
      src/backend/commands/define.c
  6. 431
      src/backend/commands/functioncmds.c
  7. 69
      src/backend/commands/lockcmds.c
  8. 247
      src/backend/commands/operatorcmds.c
  9. 234
      src/backend/commands/portalcmds.c
  10. 18
      src/backend/commands/proclang.c
  11. 476
      src/backend/commands/remove.c
  12. 591
      src/backend/commands/rename.c
  13. 116
      src/backend/commands/schemacmds.c
  14. 4
      src/backend/commands/sequence.c
  15. 1737
      src/backend/commands/tablecmds.c
  16. 660
      src/backend/commands/typecmds.c
  17. 4
      src/backend/commands/view.c
  18. 4
      src/backend/executor/execMain.c
  19. 4
      src/backend/executor/spi.c
  20. 4
      src/backend/tcop/pquery.c
  21. 9
      src/backend/tcop/utility.c
  22. 81
      src/include/commands/command.h
  23. 23
      src/include/commands/creatinh.h
  24. 35
      src/include/commands/defrem.h
  25. 24
      src/include/commands/lockcmds.h
  26. 39
      src/include/commands/portalcmds.h
  27. 25
      src/include/commands/rename.h
  28. 22
      src/include/commands/schemacmds.h
  29. 63
      src/include/commands/tablecmds.h

13
src/backend/commands/Makefile
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@ -1,10 +1,10 @@
#-------------------------------------------------------------------------
#
# Makefile--
# Makefile for commands
# Makefile for backend/commands
#
# IDENTIFICATION
# $Header: /cvsroot/pgsql/src/backend/commands/Makefile,v 1.27 2001/07/13 22:55:59 tgl Exp $
# $Header: /cvsroot/pgsql/src/backend/commands/Makefile,v 1.28 2002/04/15 05:22:03 tgl Exp $
#
#-------------------------------------------------------------------------
@ -12,10 +12,11 @@ subdir = src/backend/commands
top_builddir = ../../..
include $(top_builddir)/src/Makefile.global
OBJS = async.o creatinh.o command.o comment.o copy.o indexcmds.o define.o \
remove.o rename.o vacuum.o vacuumlazy.o analyze.o view.o cluster.o \
explain.o sequence.o trigger.o user.o proclang.o \
dbcommands.o variable.o
OBJS = aggregatecmds.o analyze.o async.o cluster.o comment.o copy.o \
dbcommands.o define.o explain.o functioncmds.o \
indexcmds.o lockcmds.o operatorcmds.o portalcmds.o proclang.o \
schemacmds.o sequence.o tablecmds.o trigger.o typecmds.o user.o \
vacuum.o vacuumlazy.o variable.o view.o
all: SUBSYS.o

208
src/backend/commands/aggregatecmds.c
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@ -0,0 +1,208 @@
/*-------------------------------------------------------------------------
*
* aggregatecmds.c
*
* Routines for aggregate-manipulation commands
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/aggregatecmds.c,v 1.1 2002/04/15 05:22:03 tgl Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
* appropriate arguments/flags, passing the results to the
* corresponding "FooDefine" routines (in src/catalog) that do
* the actual catalog-munging. These routines also verify permission
* of the user to execute the command.
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/heapam.h"
#include "catalog/catname.h"
#include "catalog/namespace.h"
#include "catalog/pg_aggregate.h"
#include "commands/comment.h"
#include "commands/defrem.h"
#include "miscadmin.h"
#include "parser/parse_func.h"
#include "parser/parse_type.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/lsyscache.h"
#include "utils/syscache.h"
/*
* DefineAggregate
*/
void
DefineAggregate(List *names, List *parameters)
{
char *aggName;
Oid aggNamespace;
List *transfuncName = NIL;
List *finalfuncName = NIL;
TypeName *baseType = NULL;
TypeName *transType = NULL;
char *initval = NULL;
Oid baseTypeId;
Oid transTypeId;
List *pl;
/* Convert list of names to a name and namespace */
aggNamespace = QualifiedNameGetCreationNamespace(names, &aggName);
foreach(pl, parameters)
{
DefElem *defel = (DefElem *) lfirst(pl);
/*
* sfunc1, stype1, and initcond1 are accepted as obsolete
* spellings for sfunc, stype, initcond.
*/
if (strcasecmp(defel->defname, "sfunc") == 0)
transfuncName = defGetQualifiedName(defel);
else if (strcasecmp(defel->defname, "sfunc1") == 0)
transfuncName = defGetQualifiedName(defel);
else if (strcasecmp(defel->defname, "finalfunc") == 0)
finalfuncName = defGetQualifiedName(defel);
else if (strcasecmp(defel->defname, "basetype") == 0)
baseType = defGetTypeName(defel);
else if (strcasecmp(defel->defname, "stype") == 0)
transType = defGetTypeName(defel);
else if (strcasecmp(defel->defname, "stype1") == 0)
transType = defGetTypeName(defel);
else if (strcasecmp(defel->defname, "initcond") == 0)
initval = defGetString(defel);
else if (strcasecmp(defel->defname, "initcond1") == 0)
initval = defGetString(defel);
else
elog(WARNING, "DefineAggregate: attribute \"%s\" not recognized",
defel->defname);
}
/*
* make sure we have our required definitions
*/
if (baseType == NULL)
elog(ERROR, "Define: \"basetype\" unspecified");
if (transType == NULL)
elog(ERROR, "Define: \"stype\" unspecified");
if (transfuncName == NIL)
elog(ERROR, "Define: \"sfunc\" unspecified");
/*
* Handle the aggregate's base type (input data type). This can be
* specified as 'ANY' for a data-independent transition function, such
* as COUNT(*).
*/
baseTypeId = LookupTypeName(baseType);
if (OidIsValid(baseTypeId))
{
/* no need to allow aggregates on as-yet-undefined types */
if (!get_typisdefined(baseTypeId))
elog(ERROR, "Type \"%s\" is only a shell",
TypeNameToString(baseType));
}
else
{
char *typnam = TypeNameToString(baseType);
if (strcasecmp(typnam, "ANY") != 0)
elog(ERROR, "Type \"%s\" does not exist", typnam);
baseTypeId = InvalidOid;
}
/* handle transtype --- no special cases here */
transTypeId = typenameTypeId(transType);
/*
* Most of the argument-checking is done inside of AggregateCreate
*/
AggregateCreate(aggName, /* aggregate name */
aggNamespace, /* namespace */
transfuncName, /* step function name */
finalfuncName, /* final function name */
baseTypeId, /* type of data being aggregated */
transTypeId, /* transition data type */
initval); /* initial condition */
}
void
RemoveAggregate(List *aggName, TypeName *aggType)
{
Relation relation;
HeapTuple tup;
Oid basetypeID;
Oid procOid;
/*
* if a basetype is passed in, then attempt to find an aggregate for
* that specific type.
*
* else if the basetype is blank, then attempt to find an aggregate with
* a basetype of zero. This is valid. It means that the aggregate is
* to apply to all basetypes (eg, COUNT).
*/
if (aggType)
basetypeID = typenameTypeId(aggType);
else
basetypeID = InvalidOid;
procOid = find_aggregate_func("RemoveAggregate", aggName, basetypeID);
/* Permission check */
if (!pg_proc_ownercheck(procOid, GetUserId()))
{
if (basetypeID == InvalidOid)
elog(ERROR, "RemoveAggregate: aggregate %s for all types: permission denied",
NameListToString(aggName));
else
elog(ERROR, "RemoveAggregate: aggregate %s for type %s: permission denied",
NameListToString(aggName), format_type_be(basetypeID));
}
/* Remove the pg_proc tuple */
relation = heap_openr(ProcedureRelationName, RowExclusiveLock);
tup = SearchSysCache(PROCOID,
ObjectIdGetDatum(procOid),
0, 0, 0);
if (!HeapTupleIsValid(tup)) /* should not happen */
elog(ERROR, "RemoveAggregate: couldn't find pg_proc tuple for %s",
NameListToString(aggName));
/* Delete any comments associated with this function */
DeleteComments(procOid, RelationGetRelid(relation));
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
heap_close(relation, RowExclusiveLock);
/* Remove the pg_aggregate tuple */
relation = heap_openr(AggregateRelationName, RowExclusiveLock);
tup = SearchSysCache(AGGFNOID,
ObjectIdGetDatum(procOid),
0, 0, 0);
if (!HeapTupleIsValid(tup)) /* should not happen */
elog(ERROR, "RemoveAggregate: couldn't find pg_aggregate tuple for %s",
NameListToString(aggName));
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
heap_close(relation, RowExclusiveLock);
}

5
src/backend/commands/cluster.c
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@ -15,7 +15,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/cluster.c,v 1.77 2002/03/31 07:49:30 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/cluster.c,v 1.78 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -29,8 +29,7 @@
#include "catalog/pg_index.h"
#include "catalog/pg_proc.h"
#include "commands/cluster.h"
#include "commands/command.h"
#include "commands/rename.h"
#include "commands/tablecmds.h"
#include "miscadmin.h"
#include "utils/builtins.h"
#include "utils/lsyscache.h"

932
src/backend/commands/creatinh.c
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@ -1,932 +0,0 @@
/*-------------------------------------------------------------------------
*
* creatinh.c
* POSTGRES create/destroy relation with inheritance utility code.
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/creatinh.c,v 1.96 2002/04/12 20:38:22 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/heapam.h"
#include "catalog/catalog.h"
#include "catalog/catname.h"
#include "catalog/heap.h"
#include "catalog/indexing.h"
#include "catalog/namespace.h"
#include "catalog/pg_inherits.h"
#include "catalog/pg_type.h"
#include "commands/creatinh.h"
#include "miscadmin.h"
#include "optimizer/clauses.h"
#include "parser/parse_type.h"
#include "utils/acl.h"
#include "utils/syscache.h"
/* ----------------
* local stuff
* ----------------
*/
static List *MergeAttributes(List *schema, List *supers, bool istemp,
List **supOids, List **supconstr, bool *supHasOids);
static bool change_varattnos_of_a_node(Node *node, const AttrNumber *newattno);
static void StoreCatalogInheritance(Oid relationId, List *supers);
static int findAttrByName(const char *attributeName, List *schema);
static void setRelhassubclassInRelation(Oid relationId, bool relhassubclass);
static List *MergeDomainAttributes(List *schema);
/* ----------------------------------------------------------------
* DefineRelation
* Creates a new relation.
*
* If successful, returns the OID of the new relation.
* ----------------------------------------------------------------
*/
Oid
DefineRelation(CreateStmt *stmt, char relkind)
{
char *relname = palloc(NAMEDATALEN);
Oid namespaceId;
List *schema = stmt->tableElts;
int numberOfAttributes;
Oid relationId;
Relation rel;
TupleDesc descriptor;
List *inheritOids;
List *old_constraints;
bool parentHasOids;
List *rawDefaults;
List *listptr;
int i;
AttrNumber attnum;
/*
* Truncate relname to appropriate length (probably a waste of time,
* as parser should have done this already).
*/
StrNCpy(relname, (stmt->relation)->relname, NAMEDATALEN);
/*
* Look up the namespace in which we are supposed to create the
* relation.
*/
namespaceId = RangeVarGetCreationNamespace(stmt->relation);
/*
* Merge domain attributes into the known columns before processing table
* inheritance. Otherwise we risk adding double constraints to a
* domain-type column that's inherited.
*/
schema = MergeDomainAttributes(schema);
/*
* Look up inheritance ancestors and generate relation schema,
* including inherited attributes.
*/
schema = MergeAttributes(schema, stmt->inhRelations,
stmt->relation->istemp,
&inheritOids, &old_constraints, &parentHasOids);
numberOfAttributes = length(schema);
if (numberOfAttributes <= 0)
elog(ERROR, "DefineRelation: please inherit from a relation or define an attribute");
/*
* Create a relation descriptor from the relation schema and create
* the relation. Note that in this stage only inherited (pre-cooked)
* defaults and constraints will be included into the new relation.
* (BuildDescForRelation takes care of the inherited defaults, but we
* have to copy inherited constraints here.)
*/
descriptor = BuildDescForRelation(schema);
if (old_constraints != NIL)
{
ConstrCheck *check = (ConstrCheck *) palloc(length(old_constraints) *
sizeof(ConstrCheck));
int ncheck = 0;
foreach(listptr, old_constraints)
{
Constraint *cdef = (Constraint *) lfirst(listptr);
if (cdef->contype != CONSTR_CHECK)
continue;
if (cdef->name != NULL)
{
for (i = 0; i < ncheck; i++)
{
if (strcmp(check[i].ccname, cdef->name) == 0)
elog(ERROR, "Duplicate CHECK constraint name: '%s'",
cdef->name);
}
check[ncheck].ccname = cdef->name;
}
else
{
check[ncheck].ccname = (char *) palloc(NAMEDATALEN);
snprintf(check[ncheck].ccname, NAMEDATALEN, "$%d", ncheck + 1);
}
Assert(cdef->raw_expr == NULL && cdef->cooked_expr != NULL);
check[ncheck].ccbin = pstrdup(cdef->cooked_expr);
ncheck++;
}
if (ncheck > 0)
{
if (descriptor->constr == NULL)
{
descriptor->constr = (TupleConstr *) palloc(sizeof(TupleConstr));
descriptor->constr->defval = NULL;
descriptor->constr->num_defval = 0;
descriptor->constr->has_not_null = false;
}
descriptor->constr->num_check = ncheck;
descriptor->constr->check = check;
}
}
relationId = heap_create_with_catalog(relname,
namespaceId,
descriptor,
relkind,
stmt->hasoids || parentHasOids,
allowSystemTableMods);
StoreCatalogInheritance(relationId, inheritOids);
/*
* We must bump the command counter to make the newly-created relation
* tuple visible for opening.
*/
CommandCounterIncrement();
/*
* Open the new relation and acquire exclusive lock on it. This isn't
* really necessary for locking out other backends (since they can't
* see the new rel anyway until we commit), but it keeps the lock
* manager from complaining about deadlock risks.
*/
rel = heap_open(relationId, AccessExclusiveLock);
/*
* Now add any newly specified column default values and CHECK
* constraints to the new relation. These are passed to us in the
* form of raw parsetrees; we need to transform them to executable
* expression trees before they can be added. The most convenient way
* to do that is to apply the parser's transformExpr routine, but
* transformExpr doesn't work unless we have a pre-existing relation.
* So, the transformation has to be postponed to this final step of
* CREATE TABLE.
*
* First, scan schema to find new column defaults.
*/
rawDefaults = NIL;
attnum = 0;
foreach(listptr, schema)
{
ColumnDef *colDef = lfirst(listptr);
RawColumnDefault *rawEnt;
attnum++;
if (colDef->raw_default == NULL)
continue;
Assert(colDef->cooked_default == NULL);
rawEnt = (RawColumnDefault *) palloc(sizeof(RawColumnDefault));
rawEnt->attnum = attnum;
rawEnt->raw_default = colDef->raw_default;
rawDefaults = lappend(rawDefaults, rawEnt);
}
/*
* Parse and add the defaults/constraints, if any.
*/
if (rawDefaults || stmt->constraints)
AddRelationRawConstraints(rel, rawDefaults, stmt->constraints);
/*
* Clean up. We keep lock on new relation (although it shouldn't be
* visible to anyone else anyway, until commit).
*/
heap_close(rel, NoLock);
return relationId;
}
/*
* RemoveRelation
* Deletes a relation.
*
* Exceptions:
* BadArg if name is invalid.
*
* Note:
* If the relation has indices defined on it, then the index relations
* themselves will be destroyed, too.
*/
void
RemoveRelation(const RangeVar *relation)
{
Oid relOid;
relOid = RangeVarGetRelid(relation, false);
heap_drop_with_catalog(relOid, allowSystemTableMods);
}
/*
* TruncateRelation
* Removes all the rows from a relation
*
* Exceptions:
* BadArg if name is invalid
*
* Note:
* Rows are removed, indices are truncated and reconstructed.
*/
void
TruncateRelation(const RangeVar *relation)
{
Relation rel;
Oid relid;
/* Grab exclusive lock in preparation for truncate */
rel = heap_openrv(relation, AccessExclusiveLock);
relid = RelationGetRelid(rel);
if (rel->rd_rel->relkind == RELKIND_SEQUENCE)
elog(ERROR, "TRUNCATE cannot be used on sequences. '%s' is a sequence",
RelationGetRelationName(rel));
if (rel->rd_rel->relkind == RELKIND_VIEW)
elog(ERROR, "TRUNCATE cannot be used on views. '%s' is a view",
RelationGetRelationName(rel));
if (!allowSystemTableMods && IsSystemRelation(rel))
elog(ERROR, "TRUNCATE cannot be used on system tables. '%s' is a system table",
RelationGetRelationName(rel));
if (!pg_class_ownercheck(relid, GetUserId()))
elog(ERROR, "you do not own relation \"%s\"",
RelationGetRelationName(rel));
/* Keep the lock until transaction commit */
heap_close(rel, NoLock);
heap_truncate(relid);
}
/*
* MergeDomainAttributes
* Returns a new table schema with the constraints, types, and other
* attributes of domains resolved for fields using a domain as
* their type.
*/
static List *
MergeDomainAttributes(List *schema)
{
List *entry;
/*
* Loop through the table elements supplied. These should
* never include inherited domains else they'll be
* double (or more) processed.
*/
foreach(entry, schema)
{
ColumnDef *coldef = lfirst(entry);
HeapTuple tuple;
Form_pg_type typeTup;
tuple = typenameType(coldef->typename);
typeTup = (Form_pg_type) GETSTRUCT(tuple);
if (typeTup->typtype == 'd')
{
/* Force the column to have the correct typmod. */
coldef->typename->typmod = typeTup->typtypmod;
/* XXX more to do here? */
}
/* Enforce type NOT NULL || column definition NOT NULL -> NOT NULL */
/* Currently only used for domains, but could be valid for all */
coldef->is_not_null |= typeTup->typnotnull;
ReleaseSysCache(tuple);
}
return schema;
}
/*----------
* MergeAttributes
* Returns new schema given initial schema and superclasses.
*
* Input arguments:
* 'schema' is the column/attribute definition for the table. (It's a list
* of ColumnDef's.) It is destructively changed.
* 'supers' is a list of names (as RangeVar nodes) of parent relations.
* 'istemp' is TRUE if we are creating a temp relation.
*
* Output arguments:
* 'supOids' receives an integer list of the OIDs of the parent relations.
* 'supconstr' receives a list of constraints belonging to the parents,
* updated as necessary to be valid for the child.
* 'supHasOids' is set TRUE if any parent has OIDs, else it is set FALSE.
*
* Return value:
* Completed schema list.
*
* Notes:
* The order in which the attributes are inherited is very important.
* Intuitively, the inherited attributes should come first. If a table
* inherits from multiple parents, the order of those attributes are
* according to the order of the parents specified in CREATE TABLE.
*
* Here's an example:
*
* create table person (name text, age int4, location point);
* create table emp (salary int4, manager text) inherits(person);
* create table student (gpa float8) inherits (person);
* create table stud_emp (percent int4) inherits (emp, student);
*
* The order of the attributes of stud_emp is:
*
* person {1:name, 2:age, 3:location}
* / \
* {6:gpa} student emp {4:salary, 5:manager}
* \ /
* stud_emp {7:percent}
*
* If the same attribute name appears multiple times, then it appears
* in the result table in the proper location for its first appearance.
*
* Constraints (including NOT NULL constraints) for the child table
* are the union of all relevant constraints, from both the child schema
* and parent tables.
*
* The default value for a child column is defined as:
* (1) If the child schema specifies a default, that value is used.
* (2) If neither the child nor any parent specifies a default, then
* the column will not have a default.
* (3) If conflicting defaults are inherited from different parents
* (and not overridden by the child), an error is raised.
* (4) Otherwise the inherited default is used.
* Rule (3) is new in Postgres 7.1; in earlier releases you got a
* rather arbitrary choice of which parent default to use.
*----------
*/
static List *
MergeAttributes(List *schema, List *supers, bool istemp,
List **supOids, List **supconstr, bool *supHasOids)
{
List *entry;
List *inhSchema = NIL;
List *parentOids = NIL;
List *constraints = NIL;
bool parentHasOids = false;
bool have_bogus_defaults = false;
char *bogus_marker = "Bogus!"; /* marks conflicting
* defaults */
int child_attno;
/*
* Check for duplicate names in the explicit list of attributes.
*
* Although we might consider merging such entries in the same way that
* we handle name conflicts for inherited attributes, it seems to make
* more sense to assume such conflicts are errors.
*/
foreach(entry, schema)
{
ColumnDef *coldef = lfirst(entry);
List *rest;
foreach(rest, lnext(entry))
{
ColumnDef *restdef = lfirst(rest);
if (strcmp(coldef->colname, restdef->colname) == 0)
elog(ERROR, "CREATE TABLE: attribute \"%s\" duplicated",
coldef->colname);
}
}
/*
* Scan the parents left-to-right, and merge their attributes to form
* a list of inherited attributes (inhSchema). Also check to see if
* we need to inherit an OID column.
*/
child_attno = 0;
foreach(entry, supers)
{
RangeVar *parent = (RangeVar *) lfirst(entry);
Relation relation;
TupleDesc tupleDesc;
TupleConstr *constr;
AttrNumber *newattno;
AttrNumber parent_attno;
relation = heap_openrv(parent, AccessShareLock);
if (relation->rd_rel->relkind != RELKIND_RELATION)
elog(ERROR, "CREATE TABLE: inherited relation \"%s\" is not a table",
parent->relname);
/* Permanent rels cannot inherit from temporary ones */
if (!istemp && isTempNamespace(RelationGetNamespace(relation)))
elog(ERROR, "CREATE TABLE: cannot inherit from temp relation \"%s\"",
parent->relname);
/*
* We should have an UNDER permission flag for this, but for now,
* demand that creator of a child table own the parent.
*/
if (!pg_class_ownercheck(RelationGetRelid(relation), GetUserId()))
elog(ERROR, "you do not own table \"%s\"",
parent->relname);
/*
* Reject duplications in the list of parents.
*/
if (intMember(RelationGetRelid(relation), parentOids))
elog(ERROR, "CREATE TABLE: inherited relation \"%s\" duplicated",
parent->relname);
parentOids = lappendi(parentOids, RelationGetRelid(relation));
setRelhassubclassInRelation(RelationGetRelid(relation), true);
parentHasOids |= relation->rd_rel->relhasoids;
tupleDesc = RelationGetDescr(relation);
constr = tupleDesc->constr;
/*
* newattno[] will contain the child-table attribute numbers for
* the attributes of this parent table. (They are not the same
* for parents after the first one.)
*/
newattno = (AttrNumber *) palloc(tupleDesc->natts * sizeof(AttrNumber));
for (parent_attno = 1; parent_attno <= tupleDesc->natts;
parent_attno++)
{
Form_pg_attribute attribute = tupleDesc->attrs[parent_attno - 1];
char *attributeName = NameStr(attribute->attname);
int exist_attno;
ColumnDef *def;
TypeName *typename;
/*
* Does it conflict with some previously inherited column?
*/
exist_attno = findAttrByName(attributeName, inhSchema);
if (exist_attno > 0)
{
/*
* Yes, try to merge the two column definitions. They must
* have the same type and typmod.
*/
elog(NOTICE, "CREATE TABLE: merging multiple inherited definitions of attribute \"%s\"",
attributeName);
def = (ColumnDef *) nth(exist_attno - 1, inhSchema);
if (typenameTypeId(def->typename) != attribute->atttypid ||
def->typename->typmod != attribute->atttypmod)
elog(ERROR, "CREATE TABLE: inherited attribute \"%s\" type conflict (%s and %s)",
attributeName,
TypeNameToString(def->typename),
typeidTypeName(attribute->atttypid));
/* Merge of NOT NULL constraints = OR 'em together */
def->is_not_null |= attribute->attnotnull;
/* Default and other constraints are handled below */
newattno[parent_attno - 1] = exist_attno;
}
else
{
/*
* No, create a new inherited column
*/
def = makeNode(ColumnDef);
def->colname = pstrdup(attributeName);
typename = makeNode(TypeName);
typename->typeid = attribute->atttypid;
typename->typmod = attribute->atttypmod;
def->typename = typename;
def->is_not_null = attribute->attnotnull;
def->raw_default = NULL;
def->cooked_default = NULL;
def->constraints = NIL;
inhSchema = lappend(inhSchema, def);
newattno[parent_attno - 1] = ++child_attno;
}
/*
* Copy default if any
*/
if (attribute->atthasdef)
{
char *this_default = NULL;
AttrDefault *attrdef;
int i;
/* Find default in constraint structure */
Assert(constr != NULL);
attrdef = constr->defval;
for (i = 0; i < constr->num_defval; i++)
{
if (attrdef[i].adnum == parent_attno)
{
this_default = attrdef[i].adbin;
break;
}
}
Assert(this_default != NULL);
/*
* If default expr could contain any vars, we'd need to
* fix 'em, but it can't; so default is ready to apply to
* child.
*
* If we already had a default from some prior parent, check
* to see if they are the same. If so, no problem; if
* not, mark the column as having a bogus default. Below,
* we will complain if the bogus default isn't overridden
* by the child schema.
*/
Assert(def->raw_default == NULL);
if (def->cooked_default == NULL)
def->cooked_default = pstrdup(this_default);
else if (strcmp(def->cooked_default, this_default) != 0)
{
def->cooked_default = bogus_marker;
have_bogus_defaults = true;
}
}
}
/*
* Now copy the constraints of this parent, adjusting attnos using
* the completed newattno[] map
*/
if (constr && constr->num_check > 0)
{
ConstrCheck *check = constr->check;
int i;
for (i = 0; i < constr->num_check; i++)
{
Constraint *cdef = makeNode(Constraint);
Node *expr;
cdef->contype = CONSTR_CHECK;
if (check[i].ccname[0] == '$')
cdef->name = NULL;
else
cdef->name = pstrdup(check[i].ccname);
cdef->raw_expr = NULL;
/* adjust varattnos of ccbin here */
expr = stringToNode(check[i].ccbin);
change_varattnos_of_a_node(expr, newattno);
cdef->cooked_expr = nodeToString(expr);
constraints = lappend(constraints, cdef);
}
}
pfree(newattno);
/*
* Close the parent rel, but keep our AccessShareLock on it until
* xact commit. That will prevent someone else from deleting or
* ALTERing the parent before the child is committed.
*/
heap_close(relation, NoLock);
}
/*
* If we had no inherited attributes, the result schema is just the
* explicitly declared columns. Otherwise, we need to merge the
* declared columns into the inherited schema list.
*/
if (inhSchema != NIL)
{
foreach(entry, schema)
{
ColumnDef *newdef = lfirst(entry);
char *attributeName = newdef->colname;
int exist_attno;
/*
* Does it conflict with some previously inherited column?
*/
exist_attno = findAttrByName(attributeName, inhSchema);
if (exist_attno > 0)
{
ColumnDef *def;
/*
* Yes, try to merge the two column definitions. They must
* have the same type and typmod.
*/
elog(NOTICE, "CREATE TABLE: merging attribute \"%s\" with inherited definition",
attributeName);
def = (ColumnDef *) nth(exist_attno - 1, inhSchema);
if (typenameTypeId(def->typename) != typenameTypeId(newdef->typename) ||
def->typename->typmod != newdef->typename->typmod)
elog(ERROR, "CREATE TABLE: attribute \"%s\" type conflict (%s and %s)",
attributeName,
TypeNameToString(def->typename),
TypeNameToString(newdef->typename));
/* Merge of NOT NULL constraints = OR 'em together */
def->is_not_null |= newdef->is_not_null;
/* If new def has a default, override previous default */
if (newdef->raw_default != NULL)
{
def->raw_default = newdef->raw_default;
def->cooked_default = newdef->cooked_default;
}
}
else
{
/*
* No, attach new column to result schema
*/
inhSchema = lappend(inhSchema, newdef);
}
}
schema = inhSchema;
}
/*
* If we found any conflicting parent default values, check to make
* sure they were overridden by the child.
*/
if (have_bogus_defaults)
{
foreach(entry, schema)
{
ColumnDef *def = lfirst(entry);
if (def->cooked_default == bogus_marker)
elog(ERROR, "CREATE TABLE: attribute \"%s\" inherits conflicting default values"
"\n\tTo resolve the conflict, specify a default explicitly",
def->colname);
}
}
*supOids = parentOids;
*supconstr = constraints;
*supHasOids = parentHasOids;
return schema;
}
/*
* complementary static functions for MergeAttributes().
*
* Varattnos of pg_relcheck.rcbin must be rewritten when subclasses inherit
* constraints from parent classes, since the inherited attributes could
* be given different column numbers in multiple-inheritance cases.
*
* Note that the passed node tree is modified in place!
*/
static bool
change_varattnos_walker(Node *node, const AttrNumber *newattno)
{
if (node == NULL)
return false;
if (IsA(node, Var))
{
Var *var = (Var *) node;
if (var->varlevelsup == 0 && var->varno == 1 &&
var->varattno > 0)
{
/*
* ??? the following may be a problem when the node is
* multiply referenced though stringToNode() doesn't create
* such a node currently.
*/
Assert(newattno[var->varattno - 1] > 0);
var->varattno = newattno[var->varattno - 1];
}
return false;
}
return expression_tree_walker(node, change_varattnos_walker,
(void *) newattno);
}
static bool
change_varattnos_of_a_node(Node *node, const AttrNumber *newattno)
{
return change_varattnos_walker(node, newattno);
}
/*
* StoreCatalogInheritance
* Updates the system catalogs with proper inheritance information.
*
* supers is an integer list of the OIDs of the new relation's direct
* ancestors. NB: it is destructively changed to include indirect ancestors.
*/
static void
StoreCatalogInheritance(Oid relationId, List *supers)
{
Relation relation;
TupleDesc desc;
int16 seqNumber;
List *entry;
HeapTuple tuple;
/*
* sanity checks
*/
AssertArg(OidIsValid(relationId));
if (supers == NIL)
return;
/*
* Catalog INHERITS information using direct ancestors only.
*/
relation = heap_openr(InheritsRelationName, RowExclusiveLock);
desc = RelationGetDescr(relation);
seqNumber = 1;
foreach(entry, supers)
{
Oid entryOid = lfirsti(entry);
Datum datum[Natts_pg_inherits];
char nullarr[Natts_pg_inherits];
datum[0] = ObjectIdGetDatum(relationId); /* inhrel */
datum[1] = ObjectIdGetDatum(entryOid); /* inhparent */
datum[2] = Int16GetDatum(seqNumber); /* inhseqno */
nullarr[0] = ' ';
nullarr[1] = ' ';
nullarr[2] = ' ';
tuple = heap_formtuple(desc, datum, nullarr);
heap_insert(relation, tuple);
if (RelationGetForm(relation)->relhasindex)
{
Relation idescs[Num_pg_inherits_indices];
CatalogOpenIndices(Num_pg_inherits_indices, Name_pg_inherits_indices, idescs);
CatalogIndexInsert(idescs, Num_pg_inherits_indices, relation, tuple);
CatalogCloseIndices(Num_pg_inherits_indices, idescs);
}
heap_freetuple(tuple);
seqNumber += 1;
}
heap_close(relation, RowExclusiveLock);
/* ----------------
* Expand supers list to include indirect ancestors as well.
*
* Algorithm:
* 0. begin with list of direct superclasses.
* 1. append after each relationId, its superclasses, recursively.
* 2. remove all but last of duplicates.
* ----------------
*/
/*
* 1. append after each relationId, its superclasses, recursively.
*/
foreach(entry, supers)
{
HeapTuple tuple;
Oid id;
int16 number;
List *next;
List *current;
id = (Oid) lfirsti(entry);
current = entry;
next = lnext(entry);
for (number = 1;; number += 1)
{
tuple = SearchSysCache(INHRELID,
ObjectIdGetDatum(id),
Int16GetDatum(number),
0, 0);
if (!HeapTupleIsValid(tuple))
break;
lnext(current) = lconsi(((Form_pg_inherits)
GETSTRUCT(tuple))->inhparent,
NIL);
ReleaseSysCache(tuple);
current = lnext(current);
}
lnext(current) = next;
}
/*
* 2. remove all but last of duplicates.
*/
foreach(entry, supers)
{
Oid thisone;
bool found;
List *rest;
again:
thisone = lfirsti(entry);
found = false;
foreach(rest, lnext(entry))
{
if (thisone == lfirsti(rest))
{
found = true;
break;
}
}
if (found)
{
/*
* found a later duplicate, so remove this entry.
*/
lfirsti(entry) = lfirsti(lnext(entry));
lnext(entry) = lnext(lnext(entry));
goto again;
}
}
}
/*
* Look for an existing schema entry with the given name.
*
* Returns the index (starting with 1) if attribute already exists in schema,
* 0 if it doesn't.
*/
static int
findAttrByName(const char *attributeName, List *schema)
{
List *s;
int i = 0;
foreach(s, schema)
{
ColumnDef *def = lfirst(s);
++i;
if (strcmp(attributeName, def->colname) == 0)
return i;
}
return 0;
}
/*
* Update a relation's pg_class.relhassubclass entry to the given value
*/
static void
setRelhassubclassInRelation(Oid relationId, bool relhassubclass)
{
Relation relationRelation;
HeapTuple tuple;
Relation idescs[Num_pg_class_indices];
/*
* Fetch a modifiable copy of the tuple, modify it, update pg_class.
*/
relationRelation = heap_openr(RelationRelationName, RowExclusiveLock);
tuple = SearchSysCacheCopy(RELOID,
ObjectIdGetDatum(relationId),
0, 0, 0);
if (!HeapTupleIsValid(tuple))
elog(ERROR, "setRelhassubclassInRelation: cache lookup failed for relation %u", relationId);
((Form_pg_class) GETSTRUCT(tuple))->relhassubclass = relhassubclass;
simple_heap_update(relationRelation, &tuple->t_self, tuple);
/* keep the catalog indices up to date */
CatalogOpenIndices(Num_pg_class_indices, Name_pg_class_indices, idescs);
CatalogIndexInsert(idescs, Num_pg_class_indices, relationRelation, tuple);
CatalogCloseIndices(Num_pg_class_indices, idescs);
heap_freetuple(tuple);
heap_close(relationRelation, RowExclusiveLock);
}

1076
src/backend/commands/define.c
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431
src/backend/commands/functioncmds.c
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/*-------------------------------------------------------------------------
*
* functioncmds.c
*
* Routines for CREATE and DROP FUNCTION commands
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/functioncmds.c,v 1.1 2002/04/15 05:22:03 tgl Exp $
*
* DESCRIPTION
* These routines take the parse tree and pick out the
* appropriate arguments/flags, and pass the results to the
* corresponding "FooDefine" routines (in src/catalog) that do
* the actual catalog-munging. These routines also verify permission
* of the user to execute the command.
*
* NOTES
* These things must be defined and committed in the following order:
* "create function":
* input/output, recv/send procedures
* "create type":
* type
* "create operator":
* operators
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/heapam.h"
#include "catalog/catname.h"
#include "catalog/namespace.h"
#include "catalog/pg_language.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_type.h"
#include "commands/comment.h"
#include "commands/defrem.h"
#include "miscadmin.h"
#include "optimizer/cost.h"
#include "parser/parse_func.h"
#include "parser/parse_type.h"
#include "utils/acl.h"
#include "utils/lsyscache.h"
#include "utils/syscache.h"
/*
* Examine the "returns" clause returnType of the CREATE FUNCTION statement
* and return information about it as *prorettype_p and *returnsSet.
*
* This is more complex than the average typename lookup because we want to
* allow a shell type to be used, or even created if the specified return type
* doesn't exist yet. (Without this, there's no way to define the I/O procs
* for a new type.) But SQL function creation won't cope, so error out if
* the target language is SQL.
*/
static void
compute_return_type(TypeName *returnType, Oid languageOid,
Oid *prorettype_p, bool *returnsSet_p)
{
Oid rettype;
rettype = LookupTypeName(returnType);
if (OidIsValid(rettype))
{
if (!get_typisdefined(rettype))
{
if (languageOid == SQLlanguageId)
elog(ERROR, "SQL functions cannot return shell types");
else
elog(WARNING, "Return type \"%s\" is only a shell",
TypeNameToString(returnType));
}
}
else
{
char *typnam = TypeNameToString(returnType);
if (strcmp(typnam, "opaque") == 0)
rettype = InvalidOid;
else
{
Oid namespaceId;
char *typname;
if (languageOid == SQLlanguageId)
elog(ERROR, "Type \"%s\" does not exist", typnam);
elog(WARNING, "ProcedureCreate: type %s is not yet defined",
typnam);
namespaceId = QualifiedNameGetCreationNamespace(returnType->names,
&typname);
rettype = TypeShellMake(typname, namespaceId);
if (!OidIsValid(rettype))
elog(ERROR, "could not create type %s", typnam);
}
}
*prorettype_p = rettype;
*returnsSet_p = returnType->setof;
}
/*
* Interpret the argument-types list of the CREATE FUNCTION statement.
*/
static int
compute_parameter_types(List *argTypes, Oid languageOid,
Oid *parameterTypes)
{
int parameterCount = 0;
List *x;
MemSet(parameterTypes, 0, FUNC_MAX_ARGS * sizeof(Oid));
foreach(x, argTypes)
{
TypeName *t = (TypeName *) lfirst(x);
Oid toid;
if (parameterCount >= FUNC_MAX_ARGS)
elog(ERROR, "functions cannot have more than %d arguments",
FUNC_MAX_ARGS);
toid = LookupTypeName(t);
if (OidIsValid(toid))
{
if (!get_typisdefined(toid))
elog(WARNING, "Argument type \"%s\" is only a shell",
TypeNameToString(t));
}
else
{
char *typnam = TypeNameToString(t);
if (strcmp(typnam, "opaque") == 0)
{
if (languageOid == SQLlanguageId)
elog(ERROR, "SQL functions cannot have arguments of type \"opaque\"");
toid = InvalidOid;
}
else
elog(ERROR, "Type \"%s\" does not exist", typnam);
}
if (t->setof)
elog(ERROR, "functions cannot accept set arguments");
parameterTypes[parameterCount++] = toid;
}
return parameterCount;
}
/*-------------
* Interpret the parameters *parameters and return their contents as
* *byte_pct_p, etc.
*
* These parameters supply optional information about a function.
* All have defaults if not specified.
*
* Note: currently, only three of these parameters actually do anything:
*
* * isImplicit means the function may be used as an implicit type
* coercion.
*
* * isStrict means the function should not be called when any NULL
* inputs are present; instead a NULL result value should be assumed.
*
* * volatility tells the optimizer whether the function's result can
* be assumed to be repeatable over multiple evaluations.
*
* The other four parameters are not used anywhere. They used to be
* used in the "expensive functions" optimizer, but that's been dead code
* for a long time.
*------------
*/
static void
compute_full_attributes(List *parameters,
int32 *byte_pct_p, int32 *perbyte_cpu_p,
int32 *percall_cpu_p, int32 *outin_ratio_p,
bool *isImplicit_p, bool *isStrict_p,
char *volatility_p)
{
List *pl;
/* the defaults */
*byte_pct_p = BYTE_PCT;
*perbyte_cpu_p = PERBYTE_CPU;
*percall_cpu_p = PERCALL_CPU;
*outin_ratio_p = OUTIN_RATIO;
*isImplicit_p = false;
*isStrict_p = false;
*volatility_p = PROVOLATILE_VOLATILE;
foreach(pl, parameters)
{
DefElem *param = (DefElem *) lfirst(pl);
if (strcasecmp(param->defname, "implicitcoercion") == 0)
*isImplicit_p = true;
else if (strcasecmp(param->defname, "isstrict") == 0)
*isStrict_p = true;
else if (strcasecmp(param->defname, "isimmutable") == 0)
*volatility_p = PROVOLATILE_IMMUTABLE;
else if (strcasecmp(param->defname, "isstable") == 0)
*volatility_p = PROVOLATILE_STABLE;
else if (strcasecmp(param->defname, "isvolatile") == 0)
*volatility_p = PROVOLATILE_VOLATILE;
else if (strcasecmp(param->defname, "iscachable") == 0)
{
/* obsolete spelling of isImmutable */
*volatility_p = PROVOLATILE_IMMUTABLE;
}
else if (strcasecmp(param->defname, "trusted") == 0)
{
/*
* we don't have untrusted functions any more. The 4.2
* implementation is lousy anyway so I took it out. -ay 10/94
*/
elog(ERROR, "untrusted function has been decommissioned.");
}
else if (strcasecmp(param->defname, "byte_pct") == 0)
*byte_pct_p = (int) defGetNumeric(param);
else if (strcasecmp(param->defname, "perbyte_cpu") == 0)
*perbyte_cpu_p = (int) defGetNumeric(param);
else if (strcasecmp(param->defname, "percall_cpu") == 0)
*percall_cpu_p = (int) defGetNumeric(param);
else if (strcasecmp(param->defname, "outin_ratio") == 0)
*outin_ratio_p = (int) defGetNumeric(param);
else
elog(WARNING, "Unrecognized function attribute '%s' ignored",
param->defname);
}
}
/*
* For a dynamically linked C language object, the form of the clause is
*
* AS <object file name> [, <link symbol name> ]
*
* In all other cases
*
* AS <object reference, or sql code>
*
*/
static void
interpret_AS_clause(Oid languageOid, const char *languageName, const List *as,
char **prosrc_str_p, char **probin_str_p)
{
Assert(as != NIL);
if (languageOid == ClanguageId)
{
/*
* For "C" language, store the file name in probin and, when
* given, the link symbol name in prosrc.
*/
*probin_str_p = strVal(lfirst(as));
if (lnext(as) == NULL)
*prosrc_str_p = "-";
else
*prosrc_str_p = strVal(lsecond(as));
}
else
{
/* Everything else wants the given string in prosrc. */
*prosrc_str_p = strVal(lfirst(as));
*probin_str_p = "-";
if (lnext(as) != NIL)
elog(ERROR, "CREATE FUNCTION: only one AS item needed for %s language",
languageName);
}
}
/*
* CreateFunction
* Execute a CREATE FUNCTION utility statement.
*/
void
CreateFunction(ProcedureStmt *stmt)
{
char *probin_str;
char *prosrc_str;
Oid prorettype;
bool returnsSet;
char languageName[NAMEDATALEN];
Oid languageOid;
char *funcname;
Oid namespaceId;
int parameterCount;
Oid parameterTypes[FUNC_MAX_ARGS];
int32 byte_pct,
perbyte_cpu,
percall_cpu,
outin_ratio;
bool isImplicit,
isStrict;
char volatility;
HeapTuple languageTuple;
Form_pg_language languageStruct;
/* Convert list of names to a name and namespace */
namespaceId = QualifiedNameGetCreationNamespace(stmt->funcname,
&funcname);
/* Convert language name to canonical case */
case_translate_language_name(stmt->language, languageName);
/* Look up the language and validate permissions */
languageTuple = SearchSysCache(LANGNAME,
PointerGetDatum(languageName),
0, 0, 0);
if (!HeapTupleIsValid(languageTuple))
elog(ERROR, "language \"%s\" does not exist", languageName);
languageOid = languageTuple->t_data->t_oid;
languageStruct = (Form_pg_language) GETSTRUCT(languageTuple);
if (!((languageStruct->lanpltrusted
&& pg_language_aclcheck(languageOid, GetUserId()) == ACLCHECK_OK)
|| superuser()))
elog(ERROR, "permission denied");
ReleaseSysCache(languageTuple);
/*
* Convert remaining parameters of CREATE to form wanted by
* ProcedureCreate.
*/
compute_return_type(stmt->returnType, languageOid,
&prorettype, &returnsSet);
parameterCount = compute_parameter_types(stmt->argTypes, languageOid,
parameterTypes);
compute_full_attributes(stmt->withClause,
&byte_pct, &perbyte_cpu, &percall_cpu,
&outin_ratio, &isImplicit, &isStrict,
&volatility);
interpret_AS_clause(languageOid, languageName, stmt->as,
&prosrc_str, &probin_str);
/*
* And now that we have all the parameters, and know we're permitted
* to do so, go ahead and create the function.
*/
ProcedureCreate(funcname,
namespaceId,
stmt->replace,
returnsSet,
prorettype,
languageOid,
prosrc_str, /* converted to text later */
probin_str, /* converted to text later */
false, /* not an aggregate */
true, /* (obsolete "trusted") */
isImplicit,
isStrict,
volatility,
byte_pct,
perbyte_cpu,
percall_cpu,
outin_ratio,
parameterCount,
parameterTypes);
}
/*
* RemoveFunction
* Deletes a function.
*
* Exceptions:
* BadArg if name is invalid.
* "ERROR" if function nonexistent.
* ...
*/
void
RemoveFunction(List *functionName, /* function name to be removed */
List *argTypes) /* list of TypeName nodes */
{
Oid funcOid;
Relation relation;
HeapTuple tup;
funcOid = LookupFuncNameTypeNames(functionName, argTypes,
true, "RemoveFunction");
relation = heap_openr(ProcedureRelationName, RowExclusiveLock);
tup = SearchSysCache(PROCOID,
ObjectIdGetDatum(funcOid),
0, 0, 0);
if (!HeapTupleIsValid(tup)) /* should not happen */
elog(ERROR, "RemoveFunction: couldn't find tuple for function %s",
NameListToString(functionName));
if (!pg_proc_ownercheck(funcOid, GetUserId()))
elog(ERROR, "RemoveFunction: function '%s': permission denied",
NameListToString(functionName));
if (((Form_pg_proc) GETSTRUCT(tup))->proisagg)
elog(ERROR, "RemoveFunction: function '%s' is an aggregate"
"\n\tUse DROP AGGREGATE to remove it",
NameListToString(functionName));
if (((Form_pg_proc) GETSTRUCT(tup))->prolang == INTERNALlanguageId)
{
/* "Helpful" WARNING when removing a builtin function ... */
elog(WARNING, "Removing built-in function \"%s\"",
NameListToString(functionName));
}
/* Delete any comments associated with this function */
DeleteComments(funcOid, RelationGetRelid(relation));
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
heap_close(relation, RowExclusiveLock);
}

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src/backend/commands/lockcmds.c
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/*-------------------------------------------------------------------------
*
* lockcmds.c
* Lock command support code
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/lockcmds.c,v 1.1 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/heapam.h"
#include "catalog/namespace.h"
#include "commands/lockcmds.h"
#include "miscadmin.h"
#include "utils/acl.h"
/*
* LOCK TABLE
*/
void
LockTableCommand(LockStmt *lockstmt)
{
List *p;
/*
* Iterate over the list and open, lock, and close the relations one
* at a time
*/
foreach(p, lockstmt->relations)
{
RangeVar *relation = lfirst(p);
Oid reloid;
int32 aclresult;
Relation rel;
/*
* We don't want to open the relation until we've checked privilege.
* So, manually get the relation OID.
*/
reloid = RangeVarGetRelid(relation, false);
if (lockstmt->mode == AccessShareLock)
aclresult = pg_class_aclcheck(reloid, GetUserId(),
ACL_SELECT);
else
aclresult = pg_class_aclcheck(reloid, GetUserId(),
ACL_UPDATE | ACL_DELETE);
if (aclresult != ACLCHECK_OK)
elog(ERROR, "LOCK TABLE: permission denied");
rel = relation_open(reloid, lockstmt->mode);
/* Currently, we only allow plain tables to be locked */
if (rel->rd_rel->relkind != RELKIND_RELATION)
elog(ERROR, "LOCK TABLE: %s is not a table",
relation->relname);
relation_close(rel, NoLock); /* close rel, keep lock */
}
}

247
src/backend/commands/operatorcmds.c
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@ -0,0 +1,247 @@
/*-------------------------------------------------------------------------
*
* operatorcmds.c
*
* Routines for operator manipulation commands
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/operatorcmds.c,v 1.1 2002/04/15 05:22:03 tgl Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
* appropriate arguments/flags, passing the results to the
* corresponding "FooDefine" routines (in src/catalog) that do
* the actual catalog-munging. These routines also verify permission
* of the user to execute the command.
*
* NOTES
* These things must be defined and committed in the following order:
* "create function":
* input/output, recv/send procedures
* "create type":
* type
* "create operator":
* operators
*
* Most of the parse-tree manipulation routines are defined in
* commands/manip.c.
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/heapam.h"
#include "catalog/catname.h"
#include "catalog/namespace.h"
#include "catalog/pg_operator.h"
#include "commands/comment.h"
#include "commands/defrem.h"
#include "miscadmin.h"
#include "parser/parse_type.h"
#include "utils/acl.h"
#include "utils/syscache.h"
/*
* DefineOperator
* this function extracts all the information from the
* parameter list generated by the parser and then has
* OperatorCreate() do all the actual work.
*
* 'parameters' is a list of DefElem
*/
void
DefineOperator(List *names, List *parameters)
{
char *oprName;
Oid oprNamespace;
uint16 precedence = 0; /* operator precedence */
bool canHash = false; /* operator hashes */
bool isLeftAssociative = true; /* operator is left
* associative */
char *functionName = NULL; /* function for operator */
TypeName *typeName1 = NULL; /* first type name */
TypeName *typeName2 = NULL; /* second type name */
Oid typeId1 = InvalidOid; /* types converted to OID */
Oid typeId2 = InvalidOid;
char *commutatorName = NULL; /* optional commutator operator
* name */
char *negatorName = NULL; /* optional negator operator name */
char *restrictionName = NULL; /* optional restrict. sel.
* procedure */
char *joinName = NULL; /* optional join sel. procedure name */
char *sortName1 = NULL; /* optional first sort operator */
char *sortName2 = NULL; /* optional second sort operator */
List *pl;
/* Convert list of names to a name and namespace */
oprNamespace = QualifiedNameGetCreationNamespace(names, &oprName);
/*
* loop over the definition list and extract the information we need.
*/
foreach(pl, parameters)
{
DefElem *defel = (DefElem *) lfirst(pl);
if (strcasecmp(defel->defname, "leftarg") == 0)
{
typeName1 = defGetTypeName(defel);
if (typeName1->setof)
elog(ERROR, "setof type not implemented for leftarg");
}
else if (strcasecmp(defel->defname, "rightarg") == 0)
{
typeName2 = defGetTypeName(defel);
if (typeName2->setof)
elog(ERROR, "setof type not implemented for rightarg");
}
else if (strcasecmp(defel->defname, "procedure") == 0)
functionName = defGetString(defel);
else if (strcasecmp(defel->defname, "precedence") == 0)
{
/* NOT IMPLEMENTED (never worked in v4.2) */
elog(NOTICE, "CREATE OPERATOR: precedence not implemented");
}
else if (strcasecmp(defel->defname, "associativity") == 0)
{
/* NOT IMPLEMENTED (never worked in v4.2) */
elog(NOTICE, "CREATE OPERATOR: associativity not implemented");
}
else if (strcasecmp(defel->defname, "commutator") == 0)
commutatorName = defGetString(defel);
else if (strcasecmp(defel->defname, "negator") == 0)
negatorName = defGetString(defel);
else if (strcasecmp(defel->defname, "restrict") == 0)
restrictionName = defGetString(defel);
else if (strcasecmp(defel->defname, "join") == 0)
joinName = defGetString(defel);
else if (strcasecmp(defel->defname, "hashes") == 0)
canHash = TRUE;
else if (strcasecmp(defel->defname, "sort1") == 0)
sortName1 = defGetString(defel);
else if (strcasecmp(defel->defname, "sort2") == 0)
sortName2 = defGetString(defel);
else
{
elog(WARNING, "DefineOperator: attribute \"%s\" not recognized",
defel->defname);
}
}
/*
* make sure we have our required definitions
*/
if (functionName == NULL)
elog(ERROR, "Define: \"procedure\" unspecified");
/* Transform type names to type OIDs */
if (typeName1)
typeId1 = typenameTypeId(typeName1);
if (typeName2)
typeId2 = typenameTypeId(typeName2);
/*
* now have OperatorCreate do all the work..
*/
OperatorCreate(oprName, /* operator name */
typeId1, /* left type id */
typeId2, /* right type id */
functionName, /* function for operator */
precedence, /* operator precedence */
isLeftAssociative, /* operator is left associative */
commutatorName, /* optional commutator operator
* name */
negatorName, /* optional negator operator name */
restrictionName, /* optional restrict. sel.
* procedure */
joinName, /* optional join sel. procedure name */
canHash, /* operator hashes */
sortName1, /* optional first sort operator */
sortName2); /* optional second sort operator */
}
/*
* RemoveOperator
* Deletes an operator.
*
* Exceptions:
* BadArg if name is invalid.
* BadArg if type1 is invalid.
* "ERROR" if operator nonexistent.
* ...
*/
void
RemoveOperator(char *operatorName, /* operator name */
TypeName *typeName1, /* left argument type name */
TypeName *typeName2) /* right argument type name */
{
Relation relation;
HeapTuple tup;
Oid typeId1 = InvalidOid;
Oid typeId2 = InvalidOid;
char oprtype;
if (typeName1)
typeId1 = typenameTypeId(typeName1);
if (typeName2)
typeId2 = typenameTypeId(typeName2);
if (OidIsValid(typeId1) && OidIsValid(typeId2))
oprtype = 'b';
else if (OidIsValid(typeId1))
oprtype = 'r';
else
oprtype = 'l';
relation = heap_openr(OperatorRelationName, RowExclusiveLock);
tup = SearchSysCacheCopy(OPERNAME,
PointerGetDatum(operatorName),
ObjectIdGetDatum(typeId1),
ObjectIdGetDatum(typeId2),
CharGetDatum(oprtype));
if (HeapTupleIsValid(tup))
{
if (!pg_oper_ownercheck(tup->t_data->t_oid, GetUserId()))
elog(ERROR, "RemoveOperator: operator '%s': permission denied",
operatorName);
/* Delete any comments associated with this operator */
DeleteComments(tup->t_data->t_oid, RelationGetRelid(relation));
simple_heap_delete(relation, &tup->t_self);
}
else
{
if (OidIsValid(typeId1) && OidIsValid(typeId2))
{
elog(ERROR, "RemoveOperator: binary operator '%s' taking '%s' and '%s' does not exist",
operatorName,
TypeNameToString(typeName1),
TypeNameToString(typeName2));
}
else if (OidIsValid(typeId1))
{
elog(ERROR, "RemoveOperator: right unary operator '%s' taking '%s' does not exist",
operatorName,
TypeNameToString(typeName1));
}
else
{
elog(ERROR, "RemoveOperator: left unary operator '%s' taking '%s' does not exist",
operatorName,
TypeNameToString(typeName2));
}
}
heap_freetuple(tup);
heap_close(relation, RowExclusiveLock);
}

234
src/backend/commands/portalcmds.c
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@ -0,0 +1,234 @@
/*-------------------------------------------------------------------------
*
* portalcmds.c
* portal support code
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/portalcmds.c,v 1.1 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "commands/portalcmds.h"
#include "executor/executor.h"
/*
* PortalCleanup
*/
void
PortalCleanup(Portal portal)
{
MemoryContext oldcontext;
/*
* sanity checks
*/
AssertArg(PortalIsValid(portal));
AssertArg(portal->cleanup == PortalCleanup);
/*
* set proper portal-executor context before calling ExecMain.
*/
oldcontext = MemoryContextSwitchTo(PortalGetHeapMemory(portal));
/*
* tell the executor to shutdown the query
*/
ExecutorEnd(PortalGetQueryDesc(portal), PortalGetState(portal));
/*
* switch back to previous context
*/
MemoryContextSwitchTo(oldcontext);
}
/*
* PerformPortalFetch
*
* name: name of portal
* forward: forward or backward fetch?
* count: # of tuples to fetch (0 implies all)
* dest: where to send results
* completionTag: points to a buffer of size COMPLETION_TAG_BUFSIZE
* in which to store a command completion status string.
*
* completionTag may be NULL if caller doesn't want a status string.
*/
void
PerformPortalFetch(char *name,
bool forward,
int count,
CommandDest dest,
char *completionTag)
{
Portal portal;
QueryDesc *queryDesc;
EState *estate;
MemoryContext oldcontext;
ScanDirection direction;
CommandId savedId;
bool temp_desc = false;
/* initialize completion status in case of early exit */
if (completionTag)
strcpy(completionTag, (dest == None) ? "MOVE 0" : "FETCH 0");
/*
* sanity checks
*/
if (name == NULL)
{
elog(WARNING, "PerformPortalFetch: missing portal name");
return;
}
/*
* get the portal from the portal name
*/
portal = GetPortalByName(name);
if (!PortalIsValid(portal))
{
elog(WARNING, "PerformPortalFetch: portal \"%s\" not found",
name);
return;
}
/*
* switch into the portal context
*/
oldcontext = MemoryContextSwitchTo(PortalGetHeapMemory(portal));
queryDesc = PortalGetQueryDesc(portal);
estate = PortalGetState(portal);
/*
* If the requested destination is not the same as the query's
* original destination, make a temporary QueryDesc with the proper
* destination. This supports MOVE, for example, which will pass in
* dest = None.
*
* EXCEPTION: if the query's original dest is RemoteInternal (ie, it's a
* binary cursor) and the request is Remote, we do NOT override the
* original dest. This is necessary since a FETCH command will pass
* dest = Remote, not knowing whether the cursor is binary or not.
*/
if (dest != queryDesc->dest &&
!(queryDesc->dest == RemoteInternal && dest == Remote))
{
QueryDesc *qdesc = (QueryDesc *) palloc(sizeof(QueryDesc));
memcpy(qdesc, queryDesc, sizeof(QueryDesc));
qdesc->dest = dest;
queryDesc = qdesc;
temp_desc = true;
}
/*
* Restore the scanCommandId that was current when the cursor was
* opened. This ensures that we see the same tuples throughout the
* execution of the cursor.
*/
savedId = GetScanCommandId();
SetScanCommandId(PortalGetCommandId(portal));
/*
* Determine which direction to go in, and check to see if we're
* already at the end of the available tuples in that direction. If
* so, set the direction to NoMovement to avoid trying to fetch any
* tuples. (This check exists because not all plan node types
* are robust about being called again if they've already returned
* NULL once.) Then call the executor (we must not skip this, because
* the destination needs to see a setup and shutdown even if no tuples
* are available). Finally, update the atStart/atEnd state depending
* on the number of tuples that were retrieved.
*/
if (forward)
{
if (portal->atEnd)
direction = NoMovementScanDirection;
else
direction = ForwardScanDirection;
ExecutorRun(queryDesc, estate, direction, (long) count);
if (estate->es_processed > 0)
portal->atStart = false; /* OK to back up now */
if (count <= 0 || (int) estate->es_processed < count)
portal->atEnd = true; /* we retrieved 'em all */
}
else
{
if (portal->atStart)
direction = NoMovementScanDirection;
else
direction = BackwardScanDirection;
ExecutorRun(queryDesc, estate, direction, (long) count);
if (estate->es_processed > 0)
portal->atEnd = false; /* OK to go forward now */
if (count <= 0 || (int) estate->es_processed < count)
portal->atStart = true; /* we retrieved 'em all */
}
/* Return command status if wanted */
if (completionTag)
snprintf(completionTag, COMPLETION_TAG_BUFSIZE, "%s %u",
(dest == None) ? "MOVE" : "FETCH",
estate->es_processed);
/*
* Restore outer command ID.
*/
SetScanCommandId(savedId);
/*
* Clean up and switch back to old context.
*/
if (temp_desc)
pfree(queryDesc);
MemoryContextSwitchTo(oldcontext);
}
/*
* PerformPortalClose
*/
void
PerformPortalClose(char *name, CommandDest dest)
{
Portal portal;
/*
* sanity checks
*/
if (name == NULL)
{
elog(WARNING, "PerformPortalClose: missing portal name");
return;
}
/*
* get the portal from the portal name
*/
portal = GetPortalByName(name);
if (!PortalIsValid(portal))
{
elog(WARNING, "PerformPortalClose: portal \"%s\" not found",
name);
return;
}
/*
* Note: PortalCleanup is called as a side-effect
*/
PortalDrop(portal);
}

18
src/backend/commands/proclang.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/proclang.c,v 1.30 2002/04/09 20:35:48 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/proclang.c,v 1.31 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -22,6 +22,7 @@
#include "catalog/pg_language.h"
#include "catalog/pg_proc.h"
#include "commands/proclang.h"
#include "commands/defrem.h"
#include "fmgr.h"
#include "miscadmin.h"
#include "parser/parse_func.h"
@ -30,21 +31,6 @@
#include "utils/syscache.h"
/*
* Translate the input language name to lower case.
*/
static void
case_translate_language_name(const char *input, char *output)
{
int i;
for (i = 0; i < NAMEDATALEN && input[i]; ++i)
output[i] = tolower((unsigned char) input[i]);
output[i] = '\0';
}
/* ---------------------------------------------------------------------
* CREATE PROCEDURAL LANGUAGE
* ---------------------------------------------------------------------

476
src/backend/commands/remove.c
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@ -1,476 +0,0 @@
/*-------------------------------------------------------------------------
*
* remove.c
* POSTGRES remove (domain | function | type | operator ) utilty code.
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/remove.c,v 1.74 2002/04/11 19:59:58 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/heapam.h"
#include "catalog/catname.h"
#include "catalog/namespace.h"
#include "catalog/pg_language.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_type.h"
#include "commands/comment.h"
#include "commands/defrem.h"
#include "miscadmin.h"
#include "parser/parse.h"
#include "parser/parse_func.h"
#include "parser/parse_type.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/syscache.h"
/*
* RemoveOperator
* Deletes an operator.
*
* Exceptions:
* BadArg if name is invalid.
* BadArg if type1 is invalid.
* "ERROR" if operator nonexistent.
* ...
*/
void
RemoveOperator(char *operatorName, /* operator name */
TypeName *typeName1, /* left argument type name */
TypeName *typeName2) /* right argument type name */
{
Relation relation;
HeapTuple tup;
Oid typeId1 = InvalidOid;
Oid typeId2 = InvalidOid;
char oprtype;
if (typeName1)
typeId1 = typenameTypeId(typeName1);
if (typeName2)
typeId2 = typenameTypeId(typeName2);
if (OidIsValid(typeId1) && OidIsValid(typeId2))
oprtype = 'b';
else if (OidIsValid(typeId1))
oprtype = 'r';
else
oprtype = 'l';
relation = heap_openr(OperatorRelationName, RowExclusiveLock);
tup = SearchSysCacheCopy(OPERNAME,
PointerGetDatum(operatorName),
ObjectIdGetDatum(typeId1),
ObjectIdGetDatum(typeId2),
CharGetDatum(oprtype));
if (HeapTupleIsValid(tup))
{
if (!pg_oper_ownercheck(tup->t_data->t_oid, GetUserId()))
elog(ERROR, "RemoveOperator: operator '%s': permission denied",
operatorName);
/* Delete any comments associated with this operator */
DeleteComments(tup->t_data->t_oid, RelationGetRelid(relation));
simple_heap_delete(relation, &tup->t_self);
}
else
{
if (OidIsValid(typeId1) && OidIsValid(typeId2))
{
elog(ERROR, "RemoveOperator: binary operator '%s' taking '%s' and '%s' does not exist",
operatorName,
TypeNameToString(typeName1),
TypeNameToString(typeName2));
}
else if (OidIsValid(typeId1))
{
elog(ERROR, "RemoveOperator: right unary operator '%s' taking '%s' does not exist",
operatorName,
TypeNameToString(typeName1));
}
else
{
elog(ERROR, "RemoveOperator: left unary operator '%s' taking '%s' does not exist",
operatorName,
TypeNameToString(typeName2));
}
}
heap_freetuple(tup);
heap_close(relation, RowExclusiveLock);
}
#ifdef NOTYET
/*
* this stuff is to support removing all reference to a type
* don't use it - pma 2/1/94
*/
/*
* SingleOpOperatorRemove
* Removes all operators that have operands or a result of type 'typeOid'.
*/
static void
SingleOpOperatorRemove(Oid typeOid)
{
Relation rel;
ScanKeyData key[3];
HeapScanDesc scan;
HeapTuple tup;
static attnums[3] = {7, 8, 9}; /* left, right, return */
int i;
ScanKeyEntryInitialize(&key[0],
0, 0, F_OIDEQ, (Datum) typeOid);
rel = heap_openr(OperatorRelationName, RowExclusiveLock);
for (i = 0; i < 3; ++i)
{
key[0].sk_attno = attnums[i];
scan = heap_beginscan(rel, 0, SnapshotNow, 1, key);
while (HeapTupleIsValid(tup = heap_getnext(scan, 0)))
{
/* Delete any comments associated with this operator */
DeleteComments(tup->t_data->t_oid, RelationGetRelid(rel));
simple_heap_delete(rel, &tup->t_self);
}
heap_endscan(scan);
}
heap_close(rel, RowExclusiveLock);
}
/*
* AttributeAndRelationRemove
* Removes all entries in the attribute and relation relations
* that contain entries of type 'typeOid'.
* Currently nothing calls this code, it is untested.
*/
static void
AttributeAndRelationRemove(Oid typeOid)
{
struct oidlist
{
Oid reloid;
struct oidlist *next;
};
struct oidlist *oidptr,
*optr;
Relation rel;
ScanKeyData key[1];
HeapScanDesc scan;
HeapTuple tup;
/*
* Get the oid's of the relations to be removed by scanning the entire
* attribute relation. We don't need to remove the attributes here,
* because amdestroy will remove all attributes of the relation. XXX
* should check for duplicate relations
*/
ScanKeyEntryInitialize(&key[0],
0, 3, F_OIDEQ, (Datum) typeOid);
oidptr = (struct oidlist *) palloc(sizeof(*oidptr));
oidptr->next = NULL;
optr = oidptr;
rel = heap_openr(AttributeRelationName, AccessShareLock);
scan = heap_beginscan(rel, 0, SnapshotNow, 1, key);
while (HeapTupleIsValid(tup = heap_getnext(scan, 0)))
{
optr->reloid = ((Form_pg_attribute) GETSTRUCT(tup))->attrelid;
optr->next = (struct oidlist *) palloc(sizeof(*oidptr));
optr = optr->next;
}
optr->next = NULL;
heap_endscan(scan);
heap_close(rel, AccessShareLock);
optr = oidptr;
ScanKeyEntryInitialize(&key[0], 0,
ObjectIdAttributeNumber,
F_OIDEQ, (Datum) 0);
/* get RowExclusiveLock because heap_destroy will need it */
rel = heap_openr(RelationRelationName, RowExclusiveLock);
while (PointerIsValid((char *) optr->next))
{
Oid relOid = (optr++)->reloid;
key[0].sk_argument = ObjectIdGetDatum(relOid);
scan = heap_beginscan(rel, 0, SnapshotNow, 1, key);
tup = heap_getnext(scan, 0);
if (HeapTupleIsValid(tup))
heap_drop_with_catalog(relOid, allowSystemTableMods);
heap_endscan(scan);
}
heap_close(rel, RowExclusiveLock);
}
#endif /* NOTYET */
/*
* TypeRemove
* Removes a datatype.
*
* NOTE: since this tries to remove the associated array type too, it'll
* only work on scalar types.
*/
void
RemoveType(List *names)
{
TypeName *typename;
Relation relation;
Oid typeoid;
HeapTuple tup;
/* Make a TypeName so we can use standard type lookup machinery */
typename = makeNode(TypeName);
typename->names = names;
typename->typmod = -1;
typename->arrayBounds = NIL;
relation = heap_openr(TypeRelationName, RowExclusiveLock);
/* Use LookupTypeName here so that shell types can be removed. */
typeoid = LookupTypeName(typename);
if (!OidIsValid(typeoid))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
tup = SearchSysCache(TYPEOID,
ObjectIdGetDatum(typeoid),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
if (!pg_type_ownercheck(typeoid, GetUserId()))
elog(ERROR, "RemoveType: type '%s': permission denied",
TypeNameToString(typename));
/* Delete any comments associated with this type */
DeleteComments(typeoid, RelationGetRelid(relation));
/* Remove the type tuple from pg_type */
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
/* Now, delete the "array of" that type */
typename->arrayBounds = makeList1(makeInteger(1));
typeoid = LookupTypeName(typename);
if (!OidIsValid(typeoid))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
tup = SearchSysCache(TYPEOID,
ObjectIdGetDatum(typeoid),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
DeleteComments(typeoid, RelationGetRelid(relation));
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
heap_close(relation, RowExclusiveLock);
}
/*
* RemoveDomain
* Removes a domain.
*/
void
RemoveDomain(List *names, int behavior)
{
TypeName *typename;
Relation relation;
Oid typeoid;
HeapTuple tup;
char typtype;
/* CASCADE unsupported */
if (behavior == CASCADE)
elog(ERROR, "DROP DOMAIN does not support the CASCADE keyword");
/* Make a TypeName so we can use standard type lookup machinery */
typename = makeNode(TypeName);
typename->names = names;
typename->typmod = -1;
typename->arrayBounds = NIL;
relation = heap_openr(TypeRelationName, RowExclusiveLock);
typeoid = typenameTypeId(typename);
tup = SearchSysCache(TYPEOID,
ObjectIdGetDatum(typeoid),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "RemoveDomain: type '%s' does not exist",
TypeNameToString(typename));
if (!pg_type_ownercheck(typeoid, GetUserId()))
elog(ERROR, "RemoveDomain: type '%s': permission denied",
TypeNameToString(typename));
/* Check that this is actually a domain */
typtype = ((Form_pg_type) GETSTRUCT(tup))->typtype;
if (typtype != 'd')
elog(ERROR, "%s is not a domain",
TypeNameToString(typename));
/* Delete any comments associated with this type */
DeleteComments(typeoid, RelationGetRelid(relation));
/* Remove the type tuple from pg_type */
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
/* At present, domains don't have associated array types */
heap_close(relation, RowExclusiveLock);
}
/*
* RemoveFunction
* Deletes a function.
*
* Exceptions:
* BadArg if name is invalid.
* "ERROR" if function nonexistent.
* ...
*/
void
RemoveFunction(List *functionName, /* function name to be removed */
List *argTypes) /* list of TypeName nodes */
{
Oid funcOid;
Relation relation;
HeapTuple tup;
funcOid = LookupFuncNameTypeNames(functionName, argTypes,
true, "RemoveFunction");
relation = heap_openr(ProcedureRelationName, RowExclusiveLock);
tup = SearchSysCache(PROCOID,
ObjectIdGetDatum(funcOid),
0, 0, 0);
if (!HeapTupleIsValid(tup)) /* should not happen */
elog(ERROR, "RemoveFunction: couldn't find tuple for function %s",
NameListToString(functionName));
if (!pg_proc_ownercheck(funcOid, GetUserId()))
elog(ERROR, "RemoveFunction: function '%s': permission denied",
NameListToString(functionName));
if (((Form_pg_proc) GETSTRUCT(tup))->proisagg)
elog(ERROR, "RemoveFunction: function '%s' is an aggregate"
"\n\tUse DROP AGGREGATE to remove it",
NameListToString(functionName));
if (((Form_pg_proc) GETSTRUCT(tup))->prolang == INTERNALlanguageId)
{
/* "Helpful" WARNING when removing a builtin function ... */
elog(WARNING, "Removing built-in function \"%s\"",
NameListToString(functionName));
}
/* Delete any comments associated with this function */
DeleteComments(funcOid, RelationGetRelid(relation));
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
heap_close(relation, RowExclusiveLock);
}
void
RemoveAggregate(List *aggName, TypeName *aggType)
{
Relation relation;
HeapTuple tup;
Oid basetypeID;
Oid procOid;
/*
* if a basetype is passed in, then attempt to find an aggregate for
* that specific type.
*
* else if the basetype is blank, then attempt to find an aggregate with
* a basetype of zero. This is valid. It means that the aggregate is
* to apply to all basetypes (eg, COUNT).
*/
if (aggType)
basetypeID = typenameTypeId(aggType);
else
basetypeID = InvalidOid;
procOid = find_aggregate_func("RemoveAggregate", aggName, basetypeID);
/* Permission check */
if (!pg_proc_ownercheck(procOid, GetUserId()))
{
if (basetypeID == InvalidOid)
elog(ERROR, "RemoveAggregate: aggregate %s for all types: permission denied",
NameListToString(aggName));
else
elog(ERROR, "RemoveAggregate: aggregate %s for type %s: permission denied",
NameListToString(aggName), format_type_be(basetypeID));
}
/* Remove the pg_proc tuple */
relation = heap_openr(ProcedureRelationName, RowExclusiveLock);
tup = SearchSysCache(PROCOID,
ObjectIdGetDatum(procOid),
0, 0, 0);
if (!HeapTupleIsValid(tup)) /* should not happen */
elog(ERROR, "RemoveAggregate: couldn't find pg_proc tuple for %s",
NameListToString(aggName));
/* Delete any comments associated with this function */
DeleteComments(procOid, RelationGetRelid(relation));
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
heap_close(relation, RowExclusiveLock);
/* Remove the pg_aggregate tuple */
relation = heap_openr(AggregateRelationName, RowExclusiveLock);
tup = SearchSysCache(AGGFNOID,
ObjectIdGetDatum(procOid),
0, 0, 0);
if (!HeapTupleIsValid(tup)) /* should not happen */
elog(ERROR, "RemoveAggregate: couldn't find pg_aggregate tuple for %s",
NameListToString(aggName));
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
heap_close(relation, RowExclusiveLock);
}

591
src/backend/commands/rename.c
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@ -1,591 +0,0 @@
/*-------------------------------------------------------------------------
*
* rename.c
* renameatt() and renamerel() reside here.
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/rename.c,v 1.70 2002/04/12 20:38:24 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include <errno.h>
#include "access/genam.h"
#include "access/heapam.h"
#include "access/itup.h"
#include "catalog/catname.h"
#include "catalog/pg_index.h"
#include "catalog/pg_trigger.h"
#include "catalog/pg_type.h"
#include "catalog/heap.h"
#include "catalog/indexing.h"
#include "catalog/catalog.h"
#include "commands/rename.h"
#include "commands/trigger.h"
#include "miscadmin.h"
#include "storage/smgr.h"
#include "optimizer/prep.h"
#include "rewrite/rewriteDefine.h"
#include "rewrite/rewriteSupport.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/fmgroids.h"
#include "utils/lsyscache.h"
#include "utils/relcache.h"
#include "utils/syscache.h"
#define RI_TRIGGER_PK 1 /* is a trigger on the PK relation */
#define RI_TRIGGER_FK 2 /* is a trigger on the FK relation */
#define RI_TRIGGER_NONE 0 /* is not an RI trigger function */
static int ri_trigger_type(Oid tgfoid);
static void update_ri_trigger_args(Oid relid,
const char *oldname,
const char *newname,
bool fk_scan,
bool update_relname);
/*
* renameatt - changes the name of a attribute in a relation
*
* Attname attribute is changed in attribute catalog.
* No record of the previous attname is kept (correct?).
*
* get proper relrelation from relation catalog (if not arg)
* scan attribute catalog
* for name conflict (within rel)
* for original attribute (if not arg)
* modify attname in attribute tuple
* insert modified attribute in attribute catalog
* delete original attribute from attribute catalog
*/
void
renameatt(Oid relid,
const char *oldattname,
const char *newattname,
bool recurse)
{
Relation targetrelation;
Relation attrelation;
HeapTuple atttup;
List *indexoidlist;
List *indexoidscan;
/*
* Grab an exclusive lock on the target table, which we will NOT
* release until end of transaction.
*/
targetrelation = heap_open(relid, AccessExclusiveLock);
/*
* permissions checking. this would normally be done in utility.c,
* but this particular routine is recursive.
*
* normally, only the owner of a class can change its schema.
*/
if (!allowSystemTableMods
&& IsSystemRelation(targetrelation))
elog(ERROR, "renameatt: class \"%s\" is a system catalog",
RelationGetRelationName(targetrelation));
if (!pg_class_ownercheck(relid, GetUserId()))
elog(ERROR, "renameatt: you do not own class \"%s\"",
RelationGetRelationName(targetrelation));
/*
* if the 'recurse' flag is set then we are supposed to rename this
* attribute in all classes that inherit from 'relname' (as well as in
* 'relname').
*
* any permissions or problems with duplicate attributes will cause the
* whole transaction to abort, which is what we want -- all or
* nothing.
*/
if (recurse)
{
List *child,
*children;
/* this routine is actually in the planner */
children = find_all_inheritors(relid);
/*
* find_all_inheritors does the recursive search of the
* inheritance hierarchy, so all we have to do is process all of
* the relids in the list that it returns.
*/
foreach(child, children)
{
Oid childrelid = lfirsti(child);
if (childrelid == relid)
continue;
/* note we need not recurse again! */
renameatt(childrelid, oldattname, newattname, false);
}
}
attrelation = heap_openr(AttributeRelationName, RowExclusiveLock);
atttup = SearchSysCacheCopy(ATTNAME,
ObjectIdGetDatum(relid),
PointerGetDatum(oldattname),
0, 0);
if (!HeapTupleIsValid(atttup))
elog(ERROR, "renameatt: attribute \"%s\" does not exist", oldattname);
if (((Form_pg_attribute) GETSTRUCT(atttup))->attnum < 0)
elog(ERROR, "renameatt: system attribute \"%s\" not renamed", oldattname);
/* should not already exist */
if (SearchSysCacheExists(ATTNAME,
ObjectIdGetDatum(relid),
PointerGetDatum(newattname),
0, 0))
elog(ERROR, "renameatt: attribute \"%s\" exists", newattname);
StrNCpy(NameStr(((Form_pg_attribute) GETSTRUCT(atttup))->attname),
newattname, NAMEDATALEN);
simple_heap_update(attrelation, &atttup->t_self, atttup);
/* keep system catalog indices current */
{
Relation irelations[Num_pg_attr_indices];
CatalogOpenIndices(Num_pg_attr_indices, Name_pg_attr_indices, irelations);
CatalogIndexInsert(irelations, Num_pg_attr_indices, attrelation, atttup);
CatalogCloseIndices(Num_pg_attr_indices, irelations);
}
heap_freetuple(atttup);
/*
* Update column names of indexes that refer to the column being
* renamed.
*/
indexoidlist = RelationGetIndexList(targetrelation);
foreach(indexoidscan, indexoidlist)
{
Oid indexoid = lfirsti(indexoidscan);
HeapTuple indextup;
/*
* First check to see if index is a functional index. If so, its
* column name is a function name and shouldn't be renamed here.
*/
indextup = SearchSysCache(INDEXRELID,
ObjectIdGetDatum(indexoid),
0, 0, 0);
if (!HeapTupleIsValid(indextup))
elog(ERROR, "renameatt: can't find index id %u", indexoid);
if (OidIsValid(((Form_pg_index) GETSTRUCT(indextup))->indproc))
{
ReleaseSysCache(indextup);
continue;
}
ReleaseSysCache(indextup);
/*
* Okay, look to see if any column name of the index matches the
* old attribute name.
*/
atttup = SearchSysCacheCopy(ATTNAME,
ObjectIdGetDatum(indexoid),
PointerGetDatum(oldattname),
0, 0);
if (!HeapTupleIsValid(atttup))
continue; /* Nope, so ignore it */
/*
* Update the (copied) attribute tuple.
*/
StrNCpy(NameStr(((Form_pg_attribute) GETSTRUCT(atttup))->attname),
newattname, NAMEDATALEN);
simple_heap_update(attrelation, &atttup->t_self, atttup);
/* keep system catalog indices current */
{
Relation irelations[Num_pg_attr_indices];
CatalogOpenIndices(Num_pg_attr_indices, Name_pg_attr_indices, irelations);
CatalogIndexInsert(irelations, Num_pg_attr_indices, attrelation, atttup);
CatalogCloseIndices(Num_pg_attr_indices, irelations);
}
heap_freetuple(atttup);
}
freeList(indexoidlist);
heap_close(attrelation, RowExclusiveLock);
/*
* Update att name in any RI triggers associated with the relation.
*/
if (targetrelation->rd_rel->reltriggers > 0)
{
/* update tgargs column reference where att is primary key */
update_ri_trigger_args(RelationGetRelid(targetrelation),
oldattname, newattname,
false, false);
/* update tgargs column reference where att is foreign key */
update_ri_trigger_args(RelationGetRelid(targetrelation),
oldattname, newattname,
true, false);
}
heap_close(targetrelation, NoLock); /* close rel but keep lock! */
}
/*
* renamerel - change the name of a relation
*
* XXX - When renaming sequences, we don't bother to modify the
* sequence name that is stored within the sequence itself
* (this would cause problems with MVCC). In the future,
* the sequence name should probably be removed from the
* sequence, AFAIK there's no need for it to be there.
*/
void
renamerel(Oid relid, const char *newrelname)
{
Relation targetrelation;
Relation relrelation; /* for RELATION relation */
HeapTuple reltup;
Oid namespaceId;
char relkind;
bool relhastriggers;
Relation irelations[Num_pg_class_indices];
/*
* Grab an exclusive lock on the target table or index, which we will
* NOT release until end of transaction.
*/
targetrelation = relation_open(relid, AccessExclusiveLock);
namespaceId = RelationGetNamespace(targetrelation);
/* Validity checks */
if (!allowSystemTableMods &&
IsSystemRelation(targetrelation))
elog(ERROR, "renamerel: system relation \"%s\" may not be renamed",
RelationGetRelationName(targetrelation));
relkind = targetrelation->rd_rel->relkind;
relhastriggers = (targetrelation->rd_rel->reltriggers > 0);
/*
* Find relation's pg_class tuple, and make sure newrelname isn't in
* use.
*/
relrelation = heap_openr(RelationRelationName, RowExclusiveLock);
reltup = SearchSysCacheCopy(RELOID,
PointerGetDatum(relid),
0, 0, 0);
if (!HeapTupleIsValid(reltup))
elog(ERROR, "renamerel: relation \"%s\" does not exist",
RelationGetRelationName(targetrelation));
if (get_relname_relid(newrelname, namespaceId) != InvalidOid)
elog(ERROR, "renamerel: relation \"%s\" exists", newrelname);
/*
* Update pg_class tuple with new relname. (Scribbling on reltup is
* OK because it's a copy...)
*/
StrNCpy(NameStr(((Form_pg_class) GETSTRUCT(reltup))->relname),
newrelname, NAMEDATALEN);
simple_heap_update(relrelation, &reltup->t_self, reltup);
/* keep the system catalog indices current */
CatalogOpenIndices(Num_pg_class_indices, Name_pg_class_indices, irelations);
CatalogIndexInsert(irelations, Num_pg_class_indices, relrelation, reltup);
CatalogCloseIndices(Num_pg_class_indices, irelations);
heap_close(relrelation, NoLock);
heap_freetuple(reltup);
/*
* Also rename the associated type, if any.
*/
if (relkind != RELKIND_INDEX)
TypeRename(RelationGetRelationName(targetrelation), namespaceId,
newrelname);
/*
* If it's a view, must also rename the associated ON SELECT rule.
*/
if (relkind == RELKIND_VIEW)
{
char *oldrulename,
*newrulename;
oldrulename = MakeRetrieveViewRuleName(RelationGetRelationName(targetrelation));
newrulename = MakeRetrieveViewRuleName(newrelname);
RenameRewriteRule(oldrulename, newrulename);
}
/*
* Update rel name in any RI triggers associated with the relation.
*/
if (relhastriggers)
{
/* update tgargs where relname is primary key */
update_ri_trigger_args(relid,
RelationGetRelationName(targetrelation),
newrelname,
false, true);
/* update tgargs where relname is foreign key */
update_ri_trigger_args(relid,
RelationGetRelationName(targetrelation),
newrelname,
true, true);
}
/*
* Close rel, but keep exclusive lock!
*/
relation_close(targetrelation, NoLock);
}
/*
* Given a trigger function OID, determine whether it is an RI trigger,
* and if so whether it is attached to PK or FK relation.
*
* XXX this probably doesn't belong here; should be exported by
* ri_triggers.c
*/
static int
ri_trigger_type(Oid tgfoid)
{
switch (tgfoid)
{
case F_RI_FKEY_CASCADE_DEL:
case F_RI_FKEY_CASCADE_UPD:
case F_RI_FKEY_RESTRICT_DEL:
case F_RI_FKEY_RESTRICT_UPD:
case F_RI_FKEY_SETNULL_DEL:
case F_RI_FKEY_SETNULL_UPD:
case F_RI_FKEY_SETDEFAULT_DEL:
case F_RI_FKEY_SETDEFAULT_UPD:
case F_RI_FKEY_NOACTION_DEL:
case F_RI_FKEY_NOACTION_UPD:
return RI_TRIGGER_PK;
case F_RI_FKEY_CHECK_INS:
case F_RI_FKEY_CHECK_UPD:
return RI_TRIGGER_FK;
}
return RI_TRIGGER_NONE;
}
/*
* Scan pg_trigger for RI triggers that are on the specified relation
* (if fk_scan is false) or have it as the tgconstrrel (if fk_scan
* is true). Update RI trigger args fields matching oldname to contain
* newname instead. If update_relname is true, examine the relname
* fields; otherwise examine the attname fields.
*/
static void
update_ri_trigger_args(Oid relid,
const char *oldname,
const char *newname,
bool fk_scan,
bool update_relname)
{
Relation tgrel;
Relation irel;
ScanKeyData skey[1];
IndexScanDesc idxtgscan;
RetrieveIndexResult idxres;
Datum values[Natts_pg_trigger];
char nulls[Natts_pg_trigger];
char replaces[Natts_pg_trigger];
tgrel = heap_openr(TriggerRelationName, RowExclusiveLock);
if (fk_scan)
irel = index_openr(TriggerConstrRelidIndex);
else
irel = index_openr(TriggerRelidIndex);
ScanKeyEntryInitialize(&skey[0], 0x0,
1, /* always column 1 of index */
F_OIDEQ,
ObjectIdGetDatum(relid));
idxtgscan = index_beginscan(irel, false, 1, skey);
while ((idxres = index_getnext(idxtgscan, ForwardScanDirection)) != NULL)
{
HeapTupleData tupledata;
Buffer buffer;
HeapTuple tuple;
Form_pg_trigger pg_trigger;
bytea *val;
bytea *newtgargs;
bool isnull;
int tg_type;
bool examine_pk;
bool changed;
int tgnargs;
int i;
int newlen;
const char *arga[RI_MAX_ARGUMENTS];
const char *argp;
tupledata.t_self = idxres->heap_iptr;
heap_fetch(tgrel, SnapshotNow, &tupledata, &buffer, idxtgscan);
pfree(idxres);
if (!tupledata.t_data)
continue;
tuple = &tupledata;
pg_trigger = (Form_pg_trigger) GETSTRUCT(tuple);
tg_type = ri_trigger_type(pg_trigger->tgfoid);
if (tg_type == RI_TRIGGER_NONE)
{
/* Not an RI trigger, forget it */
ReleaseBuffer(buffer);
continue;
}
/*
* It is an RI trigger, so parse the tgargs bytea.
*
* NB: we assume the field will never be compressed or moved out of
* line; so does trigger.c ...
*/
tgnargs = pg_trigger->tgnargs;
val = (bytea *) fastgetattr(tuple,
Anum_pg_trigger_tgargs,
tgrel->rd_att, &isnull);
if (isnull || tgnargs < RI_FIRST_ATTNAME_ARGNO ||
tgnargs > RI_MAX_ARGUMENTS)
{
/* This probably shouldn't happen, but ignore busted triggers */
ReleaseBuffer(buffer);
continue;
}
argp = (const char *) VARDATA(val);
for (i = 0; i < tgnargs; i++)
{
arga[i] = argp;
argp += strlen(argp) + 1;
}
/*
* Figure out which item(s) to look at. If the trigger is
* primary-key type and attached to my rel, I should look at the
* PK fields; if it is foreign-key type and attached to my rel, I
* should look at the FK fields. But the opposite rule holds when
* examining triggers found by tgconstrrel search.
*/
examine_pk = (tg_type == RI_TRIGGER_PK) == (!fk_scan);
changed = false;
if (update_relname)
{
/* Change the relname if needed */
i = examine_pk ? RI_PK_RELNAME_ARGNO : RI_FK_RELNAME_ARGNO;
if (strcmp(arga[i], oldname) == 0)
{
arga[i] = newname;
changed = true;
}
}
else
{
/* Change attname(s) if needed */
i = examine_pk ? RI_FIRST_ATTNAME_ARGNO + RI_KEYPAIR_PK_IDX :
RI_FIRST_ATTNAME_ARGNO + RI_KEYPAIR_FK_IDX;
for (; i < tgnargs; i += 2)
{
if (strcmp(arga[i], oldname) == 0)
{
arga[i] = newname;
changed = true;
}
}
}
if (!changed)
{
/* Don't need to update this tuple */
ReleaseBuffer(buffer);
continue;
}
/*
* Construct modified tgargs bytea.
*/
newlen = VARHDRSZ;
for (i = 0; i < tgnargs; i++)
newlen += strlen(arga[i]) + 1;
newtgargs = (bytea *) palloc(newlen);
VARATT_SIZEP(newtgargs) = newlen;
newlen = VARHDRSZ;
for (i = 0; i < tgnargs; i++)
{
strcpy(((char *) newtgargs) + newlen, arga[i]);
newlen += strlen(arga[i]) + 1;
}
/*
* Build modified tuple.
*/
for (i = 0; i < Natts_pg_trigger; i++)
{
values[i] = (Datum) 0;
replaces[i] = ' ';
nulls[i] = ' ';
}
values[Anum_pg_trigger_tgargs - 1] = PointerGetDatum(newtgargs);
replaces[Anum_pg_trigger_tgargs - 1] = 'r';
tuple = heap_modifytuple(tuple, tgrel, values, nulls, replaces);
/*
* Now we can release hold on original tuple.
*/
ReleaseBuffer(buffer);
/*
* Update pg_trigger and its indexes
*/
simple_heap_update(tgrel, &tuple->t_self, tuple);
{
Relation irelations[Num_pg_attr_indices];
CatalogOpenIndices(Num_pg_trigger_indices, Name_pg_trigger_indices, irelations);
CatalogIndexInsert(irelations, Num_pg_trigger_indices, tgrel, tuple);
CatalogCloseIndices(Num_pg_trigger_indices, irelations);
}
/* free up our scratch memory */
pfree(newtgargs);
heap_freetuple(tuple);
}
index_endscan(idxtgscan);
index_close(irel);
heap_close(tgrel, RowExclusiveLock);
/*
* Increment cmd counter to make updates visible; this is needed in
* case the same tuple has to be updated again by next pass (can
* happen in case of a self-referential FK relationship).
*/
CommandCounterIncrement();
}

116
src/backend/commands/schemacmds.c
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@ -0,0 +1,116 @@
/*-------------------------------------------------------------------------
*
* schemacmds.c
* schema creation command support code
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/schemacmds.c,v 1.1 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "catalog/catalog.h"
#include "catalog/pg_namespace.h"
#include "commands/schemacmds.h"
#include "miscadmin.h"
#include "parser/analyze.h"
#include "tcop/utility.h"
#include "utils/lsyscache.h"
/*
* CREATE SCHEMA
*/
void
CreateSchemaCommand(CreateSchemaStmt *stmt)
{
const char *schemaName = stmt->schemaname;
const char *authId = stmt->authid;
List *parsetree_list;
List *parsetree_item;
const char *owner_name;
Oid owner_userid;
Oid saved_userid;
saved_userid = GetUserId();
if (!authId)
{
owner_userid = saved_userid;
owner_name = GetUserName(owner_userid);
}
else if (superuser())
{
owner_name = authId;
/* The following will error out if user does not exist */
owner_userid = get_usesysid(owner_name);
/*
* Set the current user to the requested authorization so
* that objects created in the statement have the requested
* owner. (This will revert to session user on error or at
* the end of this routine.)
*/
SetUserId(owner_userid);
}
else /* not superuser */
{
owner_userid = saved_userid;
owner_name = GetUserName(owner_userid);
if (strcmp(authId, owner_name) != 0)
elog(ERROR, "CREATE SCHEMA: permission denied"
"\n\t\"%s\" is not a superuser, so cannot create a schema for \"%s\"",
owner_name, authId);
}
if (!allowSystemTableMods && IsReservedName(schemaName))
elog(ERROR, "CREATE SCHEMA: Illegal schema name: \"%s\" -- pg_ is reserved for system schemas",
schemaName);
/* Create the schema's namespace */
NamespaceCreate(schemaName, owner_userid);
/* Let commands in the schema-element-list know about the schema */
CommandCounterIncrement();
/*
* Examine the list of commands embedded in the CREATE SCHEMA command,
* and reorganize them into a sequentially executable order with no
* forward references. Note that the result is still a list of raw
* parsetrees in need of parse analysis --- we cannot, in general,
* run analyze.c on one statement until we have actually executed the
* prior ones.
*/
parsetree_list = analyzeCreateSchemaStmt(stmt);
/*
* Analyze and execute each command contained in the CREATE SCHEMA
*/
foreach(parsetree_item, parsetree_list)
{
Node *parsetree = (Node *) lfirst(parsetree_item);
List *querytree_list,
*querytree_item;
querytree_list = parse_analyze(parsetree, NULL);
foreach(querytree_item, querytree_list)
{
Query *querytree = (Query *) lfirst(querytree_item);
/* schemas should contain only utility stmts */
Assert(querytree->commandType == CMD_UTILITY);
/* do this step */
ProcessUtility(querytree->utilityStmt, None, NULL);
/* make sure later steps can see the object created here */
CommandCounterIncrement();
}
}
/* Reset current user */
SetUserId(saved_userid);
}

4
src/backend/commands/sequence.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/sequence.c,v 1.76 2002/03/30 01:02:41 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/sequence.c,v 1.77 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -17,7 +17,7 @@
#include "access/heapam.h"
#include "catalog/namespace.h"
#include "catalog/pg_type.h"
#include "commands/creatinh.h"
#include "commands/tablecmds.h"
#include "commands/sequence.h"
#include "miscadmin.h"
#include "utils/acl.h"

1737
src/backend/commands/command.c → src/backend/commands/tablecmds.c
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File diff suppressed because it is too large Load Diff

660
src/backend/commands/typecmds.c
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@ -0,0 +1,660 @@
/*-------------------------------------------------------------------------
*
* typecmds.c
* Routines for SQL commands that manipulate types (and domains).
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.1 2002/04/15 05:22:03 tgl Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
* appropriate arguments/flags, passing the results to the
* corresponding "FooDefine" routines (in src/catalog) that do
* the actual catalog-munging. These routines also verify permission
* of the user to execute the command.
*
* NOTES
* These things must be defined and committed in the following order:
* "create function":
* input/output, recv/send procedures
* "create type":
* type
* "create operator":
* operators
*
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/heapam.h"
#include "catalog/catname.h"
#include "catalog/heap.h"
#include "catalog/namespace.h"
#include "catalog/pg_type.h"
#include "commands/comment.h"
#include "commands/defrem.h"
#include "miscadmin.h"
#include "parser/parse.h"
#include "parser/parse_func.h"
#include "parser/parse_type.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/fmgroids.h"
#include "utils/syscache.h"
static Oid findTypeIOFunction(List *procname, bool isOutput);
/*
* DefineType
* Registers a new type.
*/
void
DefineType(List *names, List *parameters)
{
char *typeName;
Oid typeNamespace;
int16 internalLength = -1; /* int2 */
int16 externalLength = -1; /* int2 */
Oid elemType = InvalidOid;
List *inputName = NIL;
List *outputName = NIL;
List *sendName = NIL;
List *receiveName = NIL;
char *defaultValue = NULL;
bool byValue = false;
char delimiter = DEFAULT_TYPDELIM;
char alignment = 'i'; /* default alignment */
char storage = 'p'; /* default TOAST storage method */
Oid inputOid;
Oid outputOid;
Oid sendOid;
Oid receiveOid;
char *shadow_type;
List *pl;
Oid typoid;
/* Convert list of names to a name and namespace */
typeNamespace = QualifiedNameGetCreationNamespace(names, &typeName);
/*
* Type names must be one character shorter than other names, allowing
* room to create the corresponding array type name with prepended
* "_".
*/
if (strlen(typeName) > (NAMEDATALEN - 2))
elog(ERROR, "DefineType: type names must be %d characters or less",
NAMEDATALEN - 2);
foreach(pl, parameters)
{
DefElem *defel = (DefElem *) lfirst(pl);
if (strcasecmp(defel->defname, "internallength") == 0)
internalLength = defGetTypeLength(defel);
else if (strcasecmp(defel->defname, "externallength") == 0)
externalLength = defGetTypeLength(defel);
else if (strcasecmp(defel->defname, "input") == 0)
inputName = defGetQualifiedName(defel);
else if (strcasecmp(defel->defname, "output") == 0)
outputName = defGetQualifiedName(defel);
else if (strcasecmp(defel->defname, "send") == 0)
sendName = defGetQualifiedName(defel);
else if (strcasecmp(defel->defname, "receive") == 0)
receiveName = defGetQualifiedName(defel);
else if (strcasecmp(defel->defname, "delimiter") == 0)
{
char *p = defGetString(defel);
delimiter = p[0];
}
else if (strcasecmp(defel->defname, "element") == 0)
elemType = typenameTypeId(defGetTypeName(defel));
else if (strcasecmp(defel->defname, "default") == 0)
defaultValue = defGetString(defel);
else if (strcasecmp(defel->defname, "passedbyvalue") == 0)
byValue = true;
else if (strcasecmp(defel->defname, "alignment") == 0)
{
char *a = defGetString(defel);
/*
* Note: if argument was an unquoted identifier, parser will
* have applied xlateSqlType() to it, so be prepared to
* recognize translated type names as well as the nominal
* form.
*/
if (strcasecmp(a, "double") == 0)
alignment = 'd';
else if (strcasecmp(a, "float8") == 0)
alignment = 'd';
else if (strcasecmp(a, "int4") == 0)
alignment = 'i';
else if (strcasecmp(a, "int2") == 0)
alignment = 's';
else if (strcasecmp(a, "char") == 0)
alignment = 'c';
else if (strcasecmp(a, "bpchar") == 0)
alignment = 'c';
else
elog(ERROR, "DefineType: \"%s\" alignment not recognized",
a);
}
else if (strcasecmp(defel->defname, "storage") == 0)
{
char *a = defGetString(defel);
if (strcasecmp(a, "plain") == 0)
storage = 'p';
else if (strcasecmp(a, "external") == 0)
storage = 'e';
else if (strcasecmp(a, "extended") == 0)
storage = 'x';
else if (strcasecmp(a, "main") == 0)
storage = 'm';
else
elog(ERROR, "DefineType: \"%s\" storage not recognized",
a);
}
else
{
elog(WARNING, "DefineType: attribute \"%s\" not recognized",
defel->defname);
}
}
/*
* make sure we have our required definitions
*/
if (inputName == NIL)
elog(ERROR, "Define: \"input\" unspecified");
if (outputName == NIL)
elog(ERROR, "Define: \"output\" unspecified");
/* Convert I/O proc names to OIDs */
inputOid = findTypeIOFunction(inputName, false);
outputOid = findTypeIOFunction(outputName, true);
if (sendName)
sendOid = findTypeIOFunction(sendName, true);
else
sendOid = outputOid;
if (receiveName)
receiveOid = findTypeIOFunction(receiveName, false);
else
receiveOid = inputOid;
/*
* now have TypeCreate do all the real work.
*/
typoid =
TypeCreate(typeName, /* type name */
typeNamespace, /* namespace */
InvalidOid, /* preassigned type oid (not done here) */
InvalidOid, /* relation oid (n/a here) */
internalLength, /* internal size */
externalLength, /* external size */
'b', /* type-type (base type) */
delimiter, /* array element delimiter */
inputOid, /* input procedure */
outputOid, /* output procedure */
receiveOid, /* receive procedure */
sendOid, /* send procedure */
elemType, /* element type ID */
InvalidOid, /* base type ID (only for domains) */
defaultValue, /* default type value */
NULL, /* no binary form available */
byValue, /* passed by value */
alignment, /* required alignment */
storage, /* TOAST strategy */
-1, /* typMod (Domains only) */
0, /* Array Dimensions of typbasetype */
false); /* Type NOT NULL */
/*
* When we create a base type (as opposed to a complex type) we need
* to have an array entry for it in pg_type as well.
*/
shadow_type = makeArrayTypeName(typeName);
/* alignment must be 'i' or 'd' for arrays */
alignment = (alignment == 'd') ? 'd' : 'i';
TypeCreate(shadow_type, /* type name */
typeNamespace, /* namespace */
InvalidOid, /* preassigned type oid (not done here) */
InvalidOid, /* relation oid (n/a here) */
-1, /* internal size */
-1, /* external size */
'b', /* type-type (base type) */
DEFAULT_TYPDELIM, /* array element delimiter */
F_ARRAY_IN, /* input procedure */
F_ARRAY_OUT, /* output procedure */
F_ARRAY_IN, /* receive procedure */
F_ARRAY_OUT, /* send procedure */
typoid, /* element type ID */
InvalidOid, /* base type ID */
NULL, /* never a default type value */
NULL, /* binary default isn't sent either */
false, /* never passed by value */
alignment, /* see above */
'x', /* ARRAY is always toastable */
-1, /* typMod (Domains only) */
0, /* Array dimensions of typbasetype */
false); /* Type NOT NULL */
pfree(shadow_type);
}
/*
* RemoveType
* Removes a datatype.
*
* NOTE: since this tries to remove the associated array type too, it'll
* only work on scalar types.
*/
void
RemoveType(List *names)
{
TypeName *typename;
Relation relation;
Oid typeoid;
HeapTuple tup;
/* Make a TypeName so we can use standard type lookup machinery */
typename = makeNode(TypeName);
typename->names = names;
typename->typmod = -1;
typename->arrayBounds = NIL;
relation = heap_openr(TypeRelationName, RowExclusiveLock);
/* Use LookupTypeName here so that shell types can be removed. */
typeoid = LookupTypeName(typename);
if (!OidIsValid(typeoid))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
tup = SearchSysCache(TYPEOID,
ObjectIdGetDatum(typeoid),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
if (!pg_type_ownercheck(typeoid, GetUserId()))
elog(ERROR, "RemoveType: type '%s': permission denied",
TypeNameToString(typename));
/* Delete any comments associated with this type */
DeleteComments(typeoid, RelationGetRelid(relation));
/* Remove the type tuple from pg_type */
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
/* Now, delete the "array of" that type */
typename->arrayBounds = makeList1(makeInteger(1));
typeoid = LookupTypeName(typename);
if (!OidIsValid(typeoid))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
tup = SearchSysCache(TYPEOID,
ObjectIdGetDatum(typeoid),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
DeleteComments(typeoid, RelationGetRelid(relation));
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
heap_close(relation, RowExclusiveLock);
}
/*
* DefineDomain
* Registers a new domain.
*/
void
DefineDomain(CreateDomainStmt *stmt)
{
char *domainName;
Oid domainNamespace;
int16 internalLength;
int16 externalLength;
Oid inputProcedure;
Oid outputProcedure;
Oid receiveProcedure;
Oid sendProcedure;
bool byValue;
char delimiter;
char alignment;
char storage;
char typtype;
Datum datum;
bool isnull;
char *defaultValue = NULL;
char *defaultValueBin = NULL;
bool typNotNull = false;
Oid basetypelem;
int32 typNDims = length(stmt->typename->arrayBounds);
HeapTuple typeTup;
List *schema = stmt->constraints;
List *listptr;
/* Convert list of names to a name and namespace */
domainNamespace = QualifiedNameGetCreationNamespace(stmt->domainname,
&domainName);
/*
* Domainnames, unlike typenames don't need to account for the '_'
* prefix. So they can be one character longer.
*/
if (strlen(domainName) > (NAMEDATALEN - 1))
elog(ERROR, "CREATE DOMAIN: domain names must be %d characters or less",
NAMEDATALEN - 1);
/*
* Look up the base type.
*/
typeTup = typenameType(stmt->typename);
/*
* What we really don't want is domains of domains. This could cause all sorts
* of neat issues if we allow that.
*
* With testing, we may determine complex types should be allowed
*/
typtype = ((Form_pg_type) GETSTRUCT(typeTup))->typtype;
if (typtype != 'b')
elog(ERROR, "DefineDomain: %s is not a basetype",
TypeNameToString(stmt->typename));
/* passed by value */
byValue = ((Form_pg_type) GETSTRUCT(typeTup))->typbyval;
/* Required Alignment */
alignment = ((Form_pg_type) GETSTRUCT(typeTup))->typalign;
/* TOAST Strategy */
storage = ((Form_pg_type) GETSTRUCT(typeTup))->typstorage;
/* Storage Length */
internalLength = ((Form_pg_type) GETSTRUCT(typeTup))->typlen;
/* External Length (unused) */
externalLength = ((Form_pg_type) GETSTRUCT(typeTup))->typprtlen;
/* Array element Delimiter */
delimiter = ((Form_pg_type) GETSTRUCT(typeTup))->typdelim;
/* I/O Functions */
inputProcedure = ((Form_pg_type) GETSTRUCT(typeTup))->typinput;
outputProcedure = ((Form_pg_type) GETSTRUCT(typeTup))->typoutput;
receiveProcedure = ((Form_pg_type) GETSTRUCT(typeTup))->typreceive;
sendProcedure = ((Form_pg_type) GETSTRUCT(typeTup))->typsend;
/* Inherited default value */
datum = SysCacheGetAttr(TYPEOID, typeTup,
Anum_pg_type_typdefault, &isnull);
if (!isnull)
defaultValue = DatumGetCString(DirectFunctionCall1(textout, datum));
/* Inherited default binary value */
datum = SysCacheGetAttr(TYPEOID, typeTup,
Anum_pg_type_typdefaultbin, &isnull);
if (!isnull)
defaultValueBin = DatumGetCString(DirectFunctionCall1(textout, datum));
/*
* Pull out the typelem name of the parent OID.
*
* This is what enables us to make a domain of an array
*/
basetypelem = ((Form_pg_type) GETSTRUCT(typeTup))->typelem;
/*
* Run through constraints manually to avoid the additional
* processing conducted by DefineRelation() and friends.
*
* Besides, we don't want any constraints to be cooked. We'll
* do that when the table is created via MergeDomainAttributes().
*/
foreach(listptr, schema)
{
Constraint *colDef = lfirst(listptr);
bool nullDefined = false;
Node *expr;
ParseState *pstate;
switch (colDef->contype)
{
/*
* The inherited default value may be overridden by the user
* with the DEFAULT <expr> statement.
*
* We have to search the entire constraint tree returned as we
* don't want to cook or fiddle too much.
*/
case CONSTR_DEFAULT:
/* Create a dummy ParseState for transformExpr */
pstate = make_parsestate(NULL);
/*
* Cook the colDef->raw_expr into an expression.
* Note: Name is strictly for error message
*/
expr = cookDefault(pstate, colDef->raw_expr,
typeTup->t_data->t_oid,
stmt->typename->typmod,
domainName);
/*
* Expression must be stored as a nodeToString result,
* but we also require a valid textual representation
* (mainly to make life easier for pg_dump).
*/
defaultValue = deparse_expression(expr,
deparse_context_for(domainName,
InvalidOid),
false);
defaultValueBin = nodeToString(expr);
break;
/*
* Find the NULL constraint.
*/
case CONSTR_NOTNULL:
if (nullDefined) {
elog(ERROR, "CREATE DOMAIN has conflicting NULL / NOT NULL constraint");
} else {
typNotNull = true;
nullDefined = true;
}
break;
case CONSTR_NULL:
if (nullDefined) {
elog(ERROR, "CREATE DOMAIN has conflicting NULL / NOT NULL constraint");
} else {
typNotNull = false;
nullDefined = true;
}
break;
case CONSTR_UNIQUE:
elog(ERROR, "CREATE DOMAIN / UNIQUE indexes not supported");
break;
case CONSTR_PRIMARY:
elog(ERROR, "CREATE DOMAIN / PRIMARY KEY indexes not supported");
break;
case CONSTR_CHECK:
elog(ERROR, "DefineDomain: CHECK Constraints not supported");
break;
case CONSTR_ATTR_DEFERRABLE:
case CONSTR_ATTR_NOT_DEFERRABLE:
case CONSTR_ATTR_DEFERRED:
case CONSTR_ATTR_IMMEDIATE:
elog(ERROR, "DefineDomain: DEFERRABLE, NON DEFERRABLE, DEFERRED and IMMEDIATE not supported");
break;
default:
elog(ERROR, "DefineDomain: unrecognized constraint node type");
break;
}
}
/*
* Have TypeCreate do all the real work.
*/
TypeCreate(domainName, /* type name */
domainNamespace, /* namespace */
InvalidOid, /* preassigned type oid (not done here) */
InvalidOid, /* relation oid (n/a here) */
internalLength, /* internal size */
externalLength, /* external size */
'd', /* type-type (domain type) */
delimiter, /* array element delimiter */
inputProcedure, /* input procedure */
outputProcedure, /* output procedure */
receiveProcedure, /* receive procedure */
sendProcedure, /* send procedure */
basetypelem, /* element type ID */
typeTup->t_data->t_oid, /* base type ID */
defaultValue, /* default type value (text) */
defaultValueBin, /* default type value (binary) */
byValue, /* passed by value */
alignment, /* required alignment */
storage, /* TOAST strategy */
stmt->typename->typmod, /* typeMod value */
typNDims, /* Array dimensions for base type */
typNotNull); /* Type NOT NULL */
/*
* Now we can clean up.
*/
ReleaseSysCache(typeTup);
}
/*
* RemoveDomain
* Removes a domain.
*/
void
RemoveDomain(List *names, int behavior)
{
TypeName *typename;
Relation relation;
Oid typeoid;
HeapTuple tup;
char typtype;
/* CASCADE unsupported */
if (behavior == CASCADE)
elog(ERROR, "DROP DOMAIN does not support the CASCADE keyword");
/* Make a TypeName so we can use standard type lookup machinery */
typename = makeNode(TypeName);
typename->names = names;
typename->typmod = -1;
typename->arrayBounds = NIL;
relation = heap_openr(TypeRelationName, RowExclusiveLock);
typeoid = typenameTypeId(typename);
tup = SearchSysCache(TYPEOID,
ObjectIdGetDatum(typeoid),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "RemoveDomain: type '%s' does not exist",
TypeNameToString(typename));
if (!pg_type_ownercheck(typeoid, GetUserId()))
elog(ERROR, "RemoveDomain: type '%s': permission denied",
TypeNameToString(typename));
/* Check that this is actually a domain */
typtype = ((Form_pg_type) GETSTRUCT(tup))->typtype;
if (typtype != 'd')
elog(ERROR, "%s is not a domain",
TypeNameToString(typename));
/* Delete any comments associated with this type */
DeleteComments(typeoid, RelationGetRelid(relation));
/* Remove the type tuple from pg_type */
simple_heap_delete(relation, &tup->t_self);
ReleaseSysCache(tup);
/* At present, domains don't have associated array types */
heap_close(relation, RowExclusiveLock);
}
/*
* Find a suitable I/O function for a type.
*/
static Oid
findTypeIOFunction(List *procname, bool isOutput)
{
Oid argList[FUNC_MAX_ARGS];
int nargs;
Oid procOid;
/*
* First look for a 1-argument func with all argtypes 0. This is
* valid for all kinds of procedure.
*/
MemSet(argList, 0, FUNC_MAX_ARGS * sizeof(Oid));
procOid = LookupFuncName(procname, 1, argList);
if (!OidIsValid(procOid))
{
/*
* Alternatively, input procedures may take 3 args (data
* value, element OID, atttypmod); the pg_proc argtype
* signature is 0,OIDOID,INT4OID. Output procedures may
* take 2 args (data value, element OID).
*/
if (isOutput)
{
/* output proc */
nargs = 2;
argList[1] = OIDOID;
}
else
{
/* input proc */
nargs = 3;
argList[1] = OIDOID;
argList[2] = INT4OID;
}
procOid = LookupFuncName(procname, nargs, argList);
if (!OidIsValid(procOid))
func_error("TypeCreate", procname, 1, argList, NULL);
}
return procOid;
}

4
src/backend/commands/view.c
Unescape View File

@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: view.c,v 1.61 2002/03/29 19:06:08 tgl Exp $
* $Id: view.c,v 1.62 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -15,7 +15,7 @@
#include "access/xact.h"
#include "catalog/heap.h"
#include "catalog/namespace.h"
#include "commands/creatinh.h"
#include "commands/tablecmds.h"
#include "commands/view.h"
#include "miscadmin.h"
#include "nodes/makefuncs.h"

4
src/backend/executor/execMain.c
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@ -27,7 +27,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.157 2002/04/08 22:42:18 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.158 2002/04/15 05:22:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -36,7 +36,7 @@
#include "access/heapam.h"
#include "catalog/heap.h"
#include "catalog/namespace.h"
#include "commands/command.h"
#include "commands/tablecmds.h"
#include "commands/trigger.h"
#include "executor/execdebug.h"
#include "executor/execdefs.h"

4
src/backend/executor/spi.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/spi.c,v 1.68 2002/03/21 16:00:38 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/spi.c,v 1.69 2002/04/15 05:22:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -16,7 +16,7 @@
#include "access/printtup.h"
#include "catalog/heap.h"
#include "commands/command.h"
#include "commands/portalcmds.h"
#include "executor/spi_priv.h"
#include "tcop/tcopprot.h"
#include "utils/lsyscache.h"

4
src/backend/tcop/pquery.c
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@ -8,14 +8,14 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/pquery.c,v 1.51 2002/03/21 16:01:27 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/pquery.c,v 1.52 2002/04/15 05:22:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "commands/command.h"
#include "commands/portalcmds.h"
#include "executor/execdefs.h"
#include "executor/executor.h"
#include "tcop/pquery.h"

9
src/backend/tcop/utility.c
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@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.148 2002/04/12 20:38:27 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.149 2002/04/15 05:22:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -22,16 +22,17 @@
#include "catalog/pg_shadow.h"
#include "commands/async.h"
#include "commands/cluster.h"
#include "commands/command.h"
#include "commands/comment.h"
#include "commands/copy.h"
#include "commands/creatinh.h"
#include "commands/dbcommands.h"
#include "commands/defrem.h"
#include "commands/explain.h"
#include "commands/lockcmds.h"
#include "commands/portalcmds.h"
#include "commands/proclang.h"
#include "commands/rename.h"
#include "commands/schemacmds.h"
#include "commands/sequence.h"
#include "commands/tablecmds.h"
#include "commands/trigger.h"
#include "commands/user.h"
#include "commands/vacuum.h"

81
src/include/commands/command.h
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@ -1,81 +0,0 @@
/*-------------------------------------------------------------------------
*
* command.h
* prototypes for command.c.
*
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: command.h,v 1.37 2002/04/01 04:35:39 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef COMMAND_H
#define COMMAND_H
#include "utils/portal.h"
/*
* PerformPortalFetch
* Performs the POSTQUEL function FETCH. Fetches count (or all if 0)
* tuples in portal with name in the forward direction iff goForward.
*
* Exceptions:
* BadArg if forward invalid.
* "ERROR" if portal not found.
*/
extern void PerformPortalFetch(char *name, bool forward, int count,
CommandDest dest, char *completionTag);
/*
* PerformPortalClose
* Performs the POSTQUEL function CLOSE.
*/
extern void PerformPortalClose(char *name, CommandDest dest);
extern void PortalCleanup(Portal portal);
/*
* ALTER TABLE variants
*/
extern void AlterTableAddColumn(Oid myrelid, bool inherits, ColumnDef *colDef);
extern void AlterTableAlterColumnDefault(Oid myrelid, bool inh,
const char *colName, Node *newDefault);
extern void AlterTableAlterColumnDropNotNull(Oid myrelid,
bool inh, const char *colName);
extern void AlterTableAlterColumnSetNotNull(Oid myrelid,
bool inh, const char *colName);
extern void AlterTableAlterColumnFlags(Oid myrelid,
bool inh, const char *colName,
Node *flagValue, const char *flagType);
extern void AlterTableDropColumn(Oid myrelid, bool inh,
const char *colName, int behavior);
extern void AlterTableAddConstraint(Oid myrelid,
bool inh, List *newConstraints);
extern void AlterTableDropConstraint(Oid myrelid,
bool inh, const char *constrName, int behavior);
extern void AlterTableCreateToastTable(Oid relOid, bool silent);
extern void AlterTableOwner(Oid relationOid, int32 newOwnerSysId);
/*
* LOCK
*/
extern void LockTableCommand(LockStmt *lockstmt);
/*
* SCHEMA
*/
extern void CreateSchemaCommand(CreateSchemaStmt *parsetree);
#endif /* COMMAND_H */

23
src/include/commands/creatinh.h
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@ -1,23 +0,0 @@
/*-------------------------------------------------------------------------
*
* creatinh.h
* prototypes for creatinh.c.
*
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: creatinh.h,v 1.20 2002/03/29 19:06:22 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef CREATINH_H
#define CREATINH_H
#include "nodes/parsenodes.h"
extern Oid DefineRelation(CreateStmt *stmt, char relkind);
extern void RemoveRelation(const RangeVar *relation);
extern void TruncateRelation(const RangeVar *relation);
#endif /* CREATINH_H */

35
src/include/commands/defrem.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: defrem.h,v 1.34 2002/04/09 20:35:54 tgl Exp $
* $Id: defrem.h,v 1.35 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -16,6 +16,8 @@
#include "nodes/parsenodes.h"
#define DEFAULT_TYPDELIM ','
/*
* prototypes in indexcmds.c
*/
@ -33,22 +35,33 @@ extern void ReindexTable(RangeVar *relation, bool force);
extern void ReindexDatabase(const char *databaseName, bool force, bool all);
/*
* prototypes in define.c
* DefineFoo and RemoveFoo are now both in foocmds.c
*/
extern void CreateFunction(ProcedureStmt *stmt);
extern void RemoveFunction(List *functionName, List *argTypes);
extern void DefineOperator(List *names, List *parameters);
extern void RemoveOperator(char *operatorName,
TypeName *typeName1, TypeName *typeName2);
extern void DefineAggregate(List *names, List *parameters);
extern void RemoveAggregate(List *aggName, TypeName *aggType);
extern void DefineType(List *names, List *parameters);
extern void RemoveType(List *names);
extern void DefineDomain(CreateDomainStmt *stmt);
/*
* prototypes in remove.c
*/
extern void RemoveDomain(List *names, int behavior);
extern void RemoveFunction(List *functionName, List *argTypes);
extern void RemoveOperator(char *operatorName,
TypeName *typeName1, TypeName *typeName2);
extern void RemoveType(List *names);
extern void RemoveAggregate(List *aggName, TypeName *aggType);
/* support routines in define.c */
extern void case_translate_language_name(const char *input, char *output);
extern char *defGetString(DefElem *def);
extern double defGetNumeric(DefElem *def);
extern List *defGetQualifiedName(DefElem *def);
extern TypeName *defGetTypeName(DefElem *def);
extern int defGetTypeLength(DefElem *def);
#endif /* DEFREM_H */

24
src/include/commands/lockcmds.h
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@ -0,0 +1,24 @@
/*-------------------------------------------------------------------------
*
* lockcmds.h
* prototypes for lockcmds.c.
*
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: lockcmds.h,v 1.1 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef LOCKCMDS_H
#define LOCKCMDS_H
#include "nodes/parsenodes.h"
/*
* LOCK
*/
extern void LockTableCommand(LockStmt *lockstmt);
#endif /* LOCKCMDS_H */

39
src/include/commands/portalcmds.h
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@ -0,0 +1,39 @@
/*-------------------------------------------------------------------------
*
* portalcmds.h
* prototypes for portalcmds.c.
*
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: portalcmds.h,v 1.1 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PORTALCMDS_H
#define PORTALCMDS_H
#include "utils/portal.h"
/*
* PerformPortalFetch
* Performs the POSTQUEL function FETCH. Fetches count (or all if 0)
* tuples in portal with name in the forward direction iff goForward.
*
* Exceptions:
* BadArg if forward invalid.
* "ERROR" if portal not found.
*/
extern void PerformPortalFetch(char *name, bool forward, int count,
CommandDest dest, char *completionTag);
/*
* PerformPortalClose
* Performs the POSTQUEL function CLOSE.
*/
extern void PerformPortalClose(char *name, CommandDest dest);
extern void PortalCleanup(Portal portal);
#endif /* PORTALCMDS_H */

25
src/include/commands/rename.h
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@ -1,25 +0,0 @@
/*-------------------------------------------------------------------------
*
* rename.h
*
*
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: rename.h,v 1.16 2002/03/31 07:49:30 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef RENAME_H
#define RENAME_H
extern void renameatt(Oid relid,
const char *oldattname,
const char *newattname,
bool recurse);
extern void renamerel(Oid relid,
const char *newrelname);
#endif /* RENAME_H */

22
src/include/commands/schemacmds.h
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@ -0,0 +1,22 @@
/*-------------------------------------------------------------------------
*
* schemacmds.h
* prototypes for schemacmds.c.
*
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: schemacmds.h,v 1.1 2002/04/15 05:22:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef SCHEMACMDS_H
#define SCHEMACMDS_H
#include "nodes/parsenodes.h"
extern void CreateSchemaCommand(CreateSchemaStmt *parsetree);
#endif /* SCHEMACMDS_H */

63
src/include/commands/tablecmds.h
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@ -0,0 +1,63 @@
/*-------------------------------------------------------------------------
*
* tablecmds.h
* prototypes for tablecmds.c.
*
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: tablecmds.h,v 1.1 2002/04/15 05:22:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef TABLECMDS_H
#define TABLECMDS_H
#include "nodes/parsenodes.h"
extern void AlterTableAddColumn(Oid myrelid, bool inherits,
ColumnDef *colDef);
extern void AlterTableAlterColumnDefault(Oid myrelid, bool inh,
const char *colName,
Node *newDefault);
extern void AlterTableAlterColumnDropNotNull(Oid myrelid, bool inh,
const char *colName);
extern void AlterTableAlterColumnSetNotNull(Oid myrelid, bool inh,
const char *colName);
extern void AlterTableAlterColumnFlags(Oid myrelid, bool inh,
const char *colName,
Node *flagValue, const char *flagType);
extern void AlterTableDropColumn(Oid myrelid, bool inh,
const char *colName, int behavior);
extern void AlterTableAddConstraint(Oid myrelid, bool inh,
List *newConstraints);
extern void AlterTableDropConstraint(Oid myrelid, bool inh,
const char *constrName, int behavior);
extern void AlterTableCreateToastTable(Oid relOid, bool silent);
extern void AlterTableOwner(Oid relationOid, int32 newOwnerSysId);
extern Oid DefineRelation(CreateStmt *stmt, char relkind);
extern void RemoveRelation(const RangeVar *relation);
extern void TruncateRelation(const RangeVar *relation);
extern void renameatt(Oid relid,
const char *oldattname,
const char *newattname,
bool recurse);
extern void renamerel(Oid relid,
const char *newrelname);
#endif /* TABLECMDS_H */
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