|
|
|
|
/*-------------------------------------------------------------------------
|
|
|
|
|
*
|
|
|
|
|
* parse_coerce.h
|
|
|
|
|
*
|
|
|
|
|
* Routines for type coercion.
|
|
|
|
|
*
|
|
|
|
|
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
|
|
|
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
|
|
|
*
|
|
|
|
|
* $Id: parse_coerce.h,v 1.23 2000/08/21 04:48:52 tgl Exp $
|
|
|
|
|
*
|
|
|
|
|
*-------------------------------------------------------------------------
|
|
|
|
|
*/
|
|
|
|
|
#ifndef PARSE_COERCE_H
|
|
|
|
|
#define PARSE_COERCE_H
|
|
|
|
|
|
|
|
|
|
#include "catalog/pg_type.h"
|
|
|
|
|
#include "parser/parse_node.h"
|
|
|
|
|
|
|
|
|
|
typedef enum CATEGORY
|
|
|
|
|
{
|
|
|
|
|
INVALID_TYPE,
|
|
|
|
|
UNKNOWN_TYPE,
|
|
|
|
|
BOOLEAN_TYPE,
|
|
|
|
|
STRING_TYPE,
|
|
|
|
|
NUMERIC_TYPE,
|
|
|
|
|
DATETIME_TYPE,
|
|
|
|
|
TIMESPAN_TYPE,
|
|
|
|
|
GEOMETRIC_TYPE,
|
|
|
|
|
NETWORK_TYPE,
|
|
|
|
|
USER_TYPE,
|
|
|
|
|
MIXED_TYPE
|
|
|
|
|
} CATEGORY;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* IS_BUILTIN_TYPE()
|
|
|
|
|
* Check for types which are in the core distribution.
|
|
|
|
|
* The built-in types can have more explicit support for type coersion, etc,
|
|
|
|
|
* since we know apriori how they should behave.
|
|
|
|
|
* - thomas 1998-05-13
|
|
|
|
|
*/
|
|
|
|
|
#define IS_BUILTIN_TYPE(t) \
|
|
|
|
|
(((t) == OIDOID) \
|
|
|
|
|
|| ((t) == BOOLOID) \
|
|
|
|
|
|| ((t) == BPCHAROID) \
|
|
|
|
|
|| ((t) == VARCHAROID) \
|
|
|
|
|
|| ((t) == TEXTOID) \
|
|
|
|
|
|| ((t) == INT4OID) \
|
|
|
|
|
|| ((t) == INT8OID) \
|
|
|
|
|
|| ((t) == FLOAT8OID) \
|
Implement "date/time grand unification".
Transform datetime and timespan into timestamp and interval.
Deprecate datetime and timespan, though translate to new types in gram.y.
Transform all datetime and timespan catalog entries into new types.
Make "INTERVAL" reserved word allowed as a column identifier in gram.y.
Remove dt.h, dt.c files, and retarget datetime.h, datetime.c as utility
routines for all date/time types.
date.{h,c} now deals with date, time types.
timestamp.{h,c} now deals with timestamp, interval types.
nabstime.{h,c} now deals with abstime, reltime, tinterval types.
Make NUMERIC a known native type for purposes of type coersion. Not tested.
26 years ago
|
|
|
|| ((t) == NUMERICOID) \
|
|
|
|
|
|| ((t) == TIMESTAMPOID) \
|
Implement "date/time grand unification".
Transform datetime and timespan into timestamp and interval.
Deprecate datetime and timespan, though translate to new types in gram.y.
Transform all datetime and timespan catalog entries into new types.
Make "INTERVAL" reserved word allowed as a column identifier in gram.y.
Remove dt.h, dt.c files, and retarget datetime.h, datetime.c as utility
routines for all date/time types.
date.{h,c} now deals with date, time types.
timestamp.{h,c} now deals with timestamp, interval types.
nabstime.{h,c} now deals with abstime, reltime, tinterval types.
Make NUMERIC a known native type for purposes of type coersion. Not tested.
26 years ago
|
|
|
|| ((t) == INTERVALOID) \
|
|
|
|
|
|| ((t) == ABSTIMEOID) \
|
|
|
|
|
|| ((t) == RELTIMEOID) \
|
|
|
|
|
|| ((t) == DATEOID) \
|
|
|
|
|
|| ((t) == TIMEOID) \
|
|
|
|
|
|| ((t) == TIMETZOID) \
|
|
|
|
|
|| ((t) == CHAROID) \
|
|
|
|
|
|| ((t) == NAMEOID) \
|
|
|
|
|
|| ((t) == CASHOID) \
|
|
|
|
|
|| ((t) == POINTOID) \
|
|
|
|
|
|| ((t) == LSEGOID) \
|
|
|
|
|
|| ((t) == LINEOID) \
|
|
|
|
|
|| ((t) == BOXOID) \
|
|
|
|
|
|| ((t) == PATHOID) \
|
|
|
|
|
|| ((t) == POLYGONOID) \
|
|
|
|
|
|| ((t) == CIRCLEOID) \
|
|
|
|
|
|| ((t) == INETOID) \
|
|
|
|
|
|| ((t) == CIDROID) \
|
|
|
|
|
|| ((t) == ZPBITOID) \
|
|
|
|
|
|| ((t) == VARBITOID) )
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* IS_BINARY_COMPATIBLE()
|
|
|
|
|
* Check for types with the same underlying binary representation.
|
|
|
|
|
* This allows us to cheat and directly exchange values without
|
|
|
|
|
* going through the trouble of calling a conversion function.
|
|
|
|
|
*
|
Implement "date/time grand unification".
Transform datetime and timespan into timestamp and interval.
Deprecate datetime and timespan, though translate to new types in gram.y.
Transform all datetime and timespan catalog entries into new types.
Make "INTERVAL" reserved word allowed as a column identifier in gram.y.
Remove dt.h, dt.c files, and retarget datetime.h, datetime.c as utility
routines for all date/time types.
date.{h,c} now deals with date, time types.
timestamp.{h,c} now deals with timestamp, interval types.
nabstime.{h,c} now deals with abstime, reltime, tinterval types.
Make NUMERIC a known native type for purposes of type coersion. Not tested.
26 years ago
|
|
|
* Remove equivalencing of FLOAT8 and TIMESTAMP. They really are not
|
|
|
|
|
* close enough in behavior, with the TIMESTAMP reserved values
|
|
|
|
|
* and special formatting. - thomas 1999-01-24
|
|
|
|
|
*/
|
|
|
|
|
#define IS_BINARY_COMPATIBLE(a,b) \
|
|
|
|
|
(((a) == BPCHAROID && (b) == TEXTOID) \
|
|
|
|
|
|| ((a) == BPCHAROID && (b) == VARCHAROID) \
|
|
|
|
|
|| ((a) == VARCHAROID && (b) == TEXTOID) \
|
|
|
|
|
|| ((a) == VARCHAROID && (b) == BPCHAROID) \
|
|
|
|
|
|| ((a) == TEXTOID && (b) == BPCHAROID) \
|
|
|
|
|
|| ((a) == TEXTOID && (b) == VARCHAROID) \
|
|
|
|
|
|| ((a) == OIDOID && (b) == INT4OID) \
|
|
|
|
|
|| ((a) == OIDOID && (b) == REGPROCOID) \
|
|
|
|
|
|| ((a) == INT4OID && (b) == OIDOID) \
|
|
|
|
|
|| ((a) == INT4OID && (b) == REGPROCOID) \
|
|
|
|
|
|| ((a) == REGPROCOID && (b) == OIDOID) \
|
|
|
|
|
|| ((a) == REGPROCOID && (b) == INT4OID) \
|
|
|
|
|
|| ((a) == ABSTIMEOID && (b) == INT4OID) \
|
|
|
|
|
|| ((a) == INT4OID && (b) == ABSTIMEOID) \
|
|
|
|
|
|| ((a) == RELTIMEOID && (b) == INT4OID) \
|
|
|
|
|
|| ((a) == INT4OID && (b) == RELTIMEOID) \
|
|
|
|
|
|| ((a) == INETOID && (b) == CIDROID) \
|
|
|
|
|
|| ((a) == CIDROID && (b) == INETOID) \
|
|
|
|
|
|| ((a) == ZPBITOID && (b) == VARBITOID) \
|
|
|
|
|
|| ((a) == VARBITOID && (b) == ZPBITOID))
|
|
|
|
|
|
|
|
|
|
/* IS_HIGHER_TYPE()
|
|
|
|
|
* These types are the most general in each of the type categories.
|
|
|
|
|
*/
|
|
|
|
|
#define IS_HIGHER_TYPE(t) \
|
|
|
|
|
(((t) == TEXTOID) \
|
|
|
|
|
|| ((t) == FLOAT8OID) \
|
Implement "date/time grand unification".
Transform datetime and timespan into timestamp and interval.
Deprecate datetime and timespan, though translate to new types in gram.y.
Transform all datetime and timespan catalog entries into new types.
Make "INTERVAL" reserved word allowed as a column identifier in gram.y.
Remove dt.h, dt.c files, and retarget datetime.h, datetime.c as utility
routines for all date/time types.
date.{h,c} now deals with date, time types.
timestamp.{h,c} now deals with timestamp, interval types.
nabstime.{h,c} now deals with abstime, reltime, tinterval types.
Make NUMERIC a known native type for purposes of type coersion. Not tested.
26 years ago
|
|
|
|| ((t) == INTERVALOID) \
|
|
|
|
|
|| ((t) == TIMESTAMPOID) \
|
|
|
|
|
|| ((t) == POLYGONOID) \
|
|
|
|
|
|| ((t) == INETOID) )
|
|
|
|
|
|
|
|
|
|
/* IS_HIGHEST_TYPE()
|
|
|
|
|
* These types are the most general in each of the type categories.
|
Implement "date/time grand unification".
Transform datetime and timespan into timestamp and interval.
Deprecate datetime and timespan, though translate to new types in gram.y.
Transform all datetime and timespan catalog entries into new types.
Make "INTERVAL" reserved word allowed as a column identifier in gram.y.
Remove dt.h, dt.c files, and retarget datetime.h, datetime.c as utility
routines for all date/time types.
date.{h,c} now deals with date, time types.
timestamp.{h,c} now deals with timestamp, interval types.
nabstime.{h,c} now deals with abstime, reltime, tinterval types.
Make NUMERIC a known native type for purposes of type coersion. Not tested.
26 years ago
|
|
|
* Since interval and timestamp overload so many functions, let's
|
|
|
|
|
* give timestamp the preference.
|
|
|
|
|
* Since text is a generic string type let's leave it out too.
|
|
|
|
|
*/
|
|
|
|
|
#define IS_HIGHEST_TYPE(t) \
|
|
|
|
|
(((t) == FLOAT8OID) \
|
Implement "date/time grand unification".
Transform datetime and timespan into timestamp and interval.
Deprecate datetime and timespan, though translate to new types in gram.y.
Transform all datetime and timespan catalog entries into new types.
Make "INTERVAL" reserved word allowed as a column identifier in gram.y.
Remove dt.h, dt.c files, and retarget datetime.h, datetime.c as utility
routines for all date/time types.
date.{h,c} now deals with date, time types.
timestamp.{h,c} now deals with timestamp, interval types.
nabstime.{h,c} now deals with abstime, reltime, tinterval types.
Make NUMERIC a known native type for purposes of type coersion. Not tested.
26 years ago
|
|
|
|| ((t) == TIMESTAMPOID) \
|
|
|
|
|
|| ((t) == INTERVALOID))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
extern bool IsPreferredType(CATEGORY category, Oid type);
|
|
|
|
|
extern CATEGORY TypeCategory(Oid type);
|
|
|
|
|
|
|
|
|
|
extern bool can_coerce_type(int nargs, Oid *input_typeids, Oid *func_typeids);
|
|
|
|
|
extern Node *coerce_type(ParseState *pstate, Node *node, Oid inputTypeId,
|
|
|
|
|
Oid targetTypeId, int32 atttypmod);
|
|
|
|
|
extern Node *coerce_type_typmod(ParseState *pstate, Node *node,
|
|
|
|
|
Oid targetTypeId, int32 atttypmod);
|
|
|
|
|
|
|
|
|
|
#endif /* PARSE_COERCE_H */
|
