database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-02 09:02:37 +03:00
Code Activity

Add DOMAIN support. Includes manual pages and regression tests, from

Browse Source 
Rod Taylor.
This commit is contained in:
Bruce Momjian
2002-03-19 02:18:25 +00:00
parent 525b19399c
commit d3788c3305
36 changed files with 1805 additions and 286 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
src/backend/utils/cache/lsyscache.c vendored
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.62 2002/03/07 16:35:36 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.63 2002/03/19 02:18:21 momjian Exp $
*
* NOTES
* Eventually, the index information should go through here, too.
@ -23,6 +23,7 @@
#include "catalog/pg_shadow.h"
#include "catalog/pg_statistic.h"
#include "catalog/pg_type.h"
#include "parser/parse_coerce.h"
#include "utils/array.h"
#include "utils/builtins.h"
#include "utils/lsyscache.h"
@ -822,16 +823,17 @@ get_typstorage(Oid typid)
* Returns FALSE if there is no default (effectively, default is NULL).
* The result points to palloc'd storage for pass-by-reference types.
*/
bool
get_typdefault(Oid typid, Datum *defaultValue)
Node *
get_typdefault(Oid typid, int32 atttypmod)
{
HeapTuple typeTuple;
Form_pg_type type;
Oid typinput,
typelem;
Datum textDefaultVal;
Oid typinput;
Oid typbasetype;
char typtype;
Datum datum;
bool isNull;
char *strDefaultVal;
Node *expr;
typeTuple = SearchSysCache(TYPEOID,
ObjectIdGetDatum(typid),
@ -843,38 +845,41 @@ get_typdefault(Oid typid, Datum *defaultValue)
type = (Form_pg_type) GETSTRUCT(typeTuple);
typinput = type->typinput;
typelem = type->typelem;
typbasetype = type->typbasetype;
typtype = type->typtype;
/*
* typdefault is potentially null, so don't try to access it as a
* typdefaultbin is potentially null, so don't try to access it as a
* struct field. Must do it the hard way with SysCacheGetAttr.
*/
textDefaultVal = SysCacheGetAttr(TYPEOID,
typeTuple,
Anum_pg_type_typdefault,
&isNull);
datum = SysCacheGetAttr(TYPEOID,
typeTuple,
Anum_pg_type_typdefaultbin,
&isNull);
ReleaseSysCache(typeTuple);
if (isNull)
{
ReleaseSysCache(typeTuple);
*defaultValue = (Datum) 0;
return false;
return (Node *) NULL;
/* Convert Datum to a Node */
expr = stringToNode(DatumGetCString(
DirectFunctionCall1(textout, datum)));
/*
* Ensure we goto the basetype before the domain type.
*
* Prevents scenarios like the below from failing:
* CREATE DOMAIN dom text DEFAULT random();
*
*/
if (typbasetype != InvalidOid) {
expr = coerce_type(NULL, expr, typid,
typbasetype, atttypmod);
}
/* Convert text datum to C string */
strDefaultVal = DatumGetCString(DirectFunctionCall1(textout,
textDefaultVal));
/* Convert C string to a value of the given type */
*defaultValue = OidFunctionCall3(typinput,
CStringGetDatum(strDefaultVal),
ObjectIdGetDatum(typelem),
Int32GetDatum(-1));
pfree(strDefaultVal);
ReleaseSysCache(typeTuple);
return true;
return expr;
}
/*

10
src/backend/utils/cache/relcache.c vendored
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.156 2002/03/07 16:35:36 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.157 2002/03/19 02:18:22 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -512,8 +512,12 @@ RelationBuildTupleDesc(RelationBuildDescInfo buildinfo,
(char *) attp,
ATTRIBUTE_TUPLE_SIZE);
/* Update constraint/default info */
if (attp->attnotnull)
/*
* Update constraint/default info
*/
if (attp->attnotnull)
constr->has_not_null = true;
if (attp->atthasdef)