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ALTER DOMAIN OWNER, from Rod Taylor.

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WIN32_DEV
Tom Lane 23 years ago
parent 1bf1597e3a
commit daec989f6a
6 changed files with 120 additions and 19 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. 38
      doc/src/sgml/ref/alter_domain.sgml
  2. 60
      src/backend/commands/typecmds.c
  3. 11
      src/backend/parser/gram.y
  4. 20
      src/backend/tcop/utility.c
  5. 6
      src/include/commands/typecmds.h
  6. 4
      src/include/nodes/parsenodes.h

38
doc/src/sgml/ref/alter_domain.sgml
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@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/alter_domain.sgml,v 1.6 2002/12/06 16:40:13 momjian Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ref/alter_domain.sgml,v 1.7 2003/01/06 00:31:44 tgl Exp $
PostgreSQL documentation
-->
@ -29,6 +29,8 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
ADD <replaceable class="PARAMETER">domain_constraint</replaceable>
ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
DROP CONSTRAINT <replaceable class="PARAMETER">constraint_name</replaceable> [ RESTRICT | CASCADE ]
ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
OWNER TO <replaceable class="PARAMETER">new_owner</replaceable>
</synopsis>
<refsect2 id="R2-SQL-ALTERDOMAIN-1">
@ -73,7 +75,7 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
<term>CASCADE</term>
<listitem>
<para>
Automatically drop objects that depend constraint.
Automatically drop objects that depend on the constraint.
</para>
</listitem>
</varlistentry>
@ -88,6 +90,15 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="PARAMETER">new_owner</replaceable></term>
<listitem>
<para>
The user name of the new owner of the domain.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
@ -141,9 +152,9 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
<term>SET/DROP DEFAULT</term>
<listitem>
<para>
These forms set or remove the default value for a column. Note
These forms set or remove the default value for a domain. Note
that defaults only apply to subsequent <command>INSERT</command>
commands; they do not cause rows already in a table using the domain.
commands; they do not affect rows already in a table using the domain.
</para>
</listitem>
</varlistentry>
@ -154,8 +165,7 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
<para>
These forms change whether a domain is marked to allow NULL
values or to reject NULL values. You may only <literal>SET NOT NULL</>
when the tables using the domain contain no null values in the domain
based column.
when the columns using the domain contain no null values.
</para>
</listitem>
</varlistentry>
@ -164,8 +174,10 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
<term>ADD <replaceable class="PARAMETER">domain_constraint</replaceable></term>
<listitem>
<para>
This form adds a new constraint to a table using the same syntax as
<xref linkend="SQL-CREATEDOMAIN" endterm="SQL-CREATEDOMAIN-TITLE">.
This form adds a new constraint to a domain using the same syntax as
<xref linkend="SQL-CREATEDOMAIN" endterm="SQL-CREATEDOMAIN-TITLE">.
This will only succeed if all columns using the domain satisfy the
new constraint.
</para>
</listitem>
</varlistentry>
@ -179,11 +191,19 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
</listitem>
</varlistentry>
<varlistentry>
<term>OWNER</term>
<listitem>
<para>
This form changes the owner of the domain to the specified user.
</para>
</listitem>
</varlistentry>
</variablelist>
<para>
You must own the domain to use <command>ALTER DOMAIN</>; except for
<command>ALTER TABLE OWNER</>, which may only be executed by a superuser.
<command>ALTER DOMAIN OWNER</>, which may only be executed by a superuser.
</para>
</refsect1>

60
src/backend/commands/typecmds.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.26 2003/01/04 00:46:08 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.27 2003/01/06 00:31:44 tgl Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
@ -1673,3 +1673,61 @@ domainAddConstraint(Oid domainOid, Oid domainNamespace, Oid baseTypeOid,
*/
return ccbin;
}
/*
* ALTER DOMAIN .. OWNER TO
*
* Eventually this should allow changing ownership of other kinds of types,
* but some thought must be given to handling complex types. (A table's
* rowtype probably shouldn't be allowed as target, but what of a standalone
* composite type?)
*
* Assumes that permission checks have been completed earlier.
*/
void
AlterTypeOwner(List *names, AclId newOwnerSysId)
{
TypeName *typename;
Oid typeOid;
Relation rel;
HeapTuple tup;
Form_pg_type typTup;
/* Make a TypeName so we can use standard type lookup machinery */
typename = makeNode(TypeName);
typename->names = names;
typename->typmod = -1;
typename->arrayBounds = NIL;
/* Lock the type table */
rel = heap_openr(TypeRelationName, RowExclusiveLock);
/* Use LookupTypeName here so that shell types can be processed (why?) */
typeOid = LookupTypeName(typename);
if (!OidIsValid(typeOid))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
tup = SearchSysCacheCopy(TYPEOID,
ObjectIdGetDatum(typeOid),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "AlterDomain: type \"%s\" does not exist",
TypeNameToString(typename));
typTup = (Form_pg_type) GETSTRUCT(tup);
/* Check that this is actually a domain */
if (typTup->typtype != 'd')
elog(ERROR, "%s is not a domain",
TypeNameToString(typename));
/* Modify the owner --- okay to scribble on typTup because it's a copy */
typTup->typowner = newOwnerSysId;
simple_heap_update(rel, &tup->t_self, tup);
CatalogUpdateIndexes(rel, tup);
/* Clean up */
heap_close(rel, RowExclusiveLock);
}

11
src/backend/parser/gram.y
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@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.389 2002/12/30 15:31:47 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.390 2003/01/06 00:31:44 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -3764,6 +3764,15 @@ AlterDomainStmt:
n->behavior = $7;
$$ = (Node *)n;
}
/* ALTER DOMAIN <domain> OWNER TO UserId */
| ALTER DOMAIN_P any_name OWNER TO UserId
{
AlterDomainStmt *n = makeNode(AlterDomainStmt);
n->subtype = 'U';
n->typename = $3;
n->name = $6;
$$ = (Node *)n;
}
;
opt_as: AS {}

20
src/backend/tcop/utility.c
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@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.187 2002/12/30 18:42:16 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.188 2003/01/06 00:31:44 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -439,11 +439,11 @@ ProcessUtility(Node *parsetree,
stmt->newname); /* new att name */
break;
case RENAME_RULE:
elog(ERROR, "ProcessUtility: Invalid target for RENAME: %d",
elog(ERROR, "ProcessUtility: Invalid type for RENAME: %d",
stmt->renameType);
break;
default:
elog(ERROR, "ProcessUtility: Invalid target for RENAME: %d",
elog(ERROR, "ProcessUtility: Invalid type for RENAME: %d",
stmt->renameType);
}
}
@ -553,7 +553,8 @@ ProcessUtility(Node *parsetree,
get_usesysid(stmt->name));
break;
default: /* oops */
elog(ERROR, "T_AlterTableStmt: unknown subtype");
elog(ERROR, "ProcessUtility: Invalid type for AlterTableStmt: %d",
stmt->subtype);
break;
}
}
@ -595,8 +596,17 @@ ProcessUtility(Node *parsetree,
stmt->name,
stmt->behavior);
break;
case 'U': /* OWNER TO */
/* check that we are the superuser */
if (!superuser())
elog(ERROR, "ALTER DOMAIN: permission denied");
/* get_usesysid raises an error if no such user */
AlterTypeOwner(stmt->typename,
get_usesysid(stmt->name));
break;
default: /* oops */
elog(ERROR, "T_AlterDomainStmt: unknown subtype");
elog(ERROR, "ProcessUtility: Invalid type for AlterDomainStmt: %d",
stmt->subtype);
break;
}
}

6
src/include/commands/typecmds.h
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@ -7,15 +7,17 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: typecmds.h,v 1.2 2002/12/10 16:12:53 tgl Exp $
* $Id: typecmds.h,v 1.3 2003/01/06 00:31:44 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef TYPECMDS_H
#define TYPECMDS_H
#include "miscadmin.h"
#include "nodes/parsenodes.h"
#define DEFAULT_TYPDELIM ','
extern void DefineType(List *names, List *parameters);
@ -31,4 +33,6 @@ extern void AlterDomainAddConstraint(List *names, Node *constr);
extern void AlterDomainDropConstraint(List *names, const char *constrName,
DropBehavior behavior);
extern void AlterTypeOwner(List *names, AclId newOwnerSysId);
#endif /* TYPECMDS_H */

4
src/include/nodes/parsenodes.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: parsenodes.h,v 1.224 2002/12/30 15:31:51 momjian Exp $
* $Id: parsenodes.h,v 1.225 2003/01/06 00:31:45 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -711,7 +711,7 @@ typedef struct AlterTableStmt
* Alter Domain
*
* The fields are used in different ways by the different variants of
* this command. Subtypes should match AlterTable subtypes
* this command. Subtypes should match AlterTable subtypes where possible.
* ----------------------
*/
typedef struct AlterDomainStmt

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