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Further cleanups for relations in schemas: teach nextval and other

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sequence functions how to cope with qualified names.  Same code is
also used for int4notin, currtid_byrelname, pgstattuple.  Also,
move TOAST tables into special pg_toast namespace.
This commit is contained in:
Tom Lane
2002-03-30 01:02:42 +00:00
parent 25004eec95
commit 5f4745adf4
14 changed files with 261 additions and 178 deletions
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36
src/backend/utils/adt/not_in.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/Attic/not_in.c,v 1.27 2001/10/25 05:49:45 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/Attic/not_in.c,v 1.28 2002/03/30 01:02:41 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -25,7 +25,9 @@
*/
#include "postgres.h"
#include "access/heapam.h"
#include "catalog/namespace.h"
#include "utils/builtins.h"
static int my_varattno(Relation rd, char *a);
@ -39,43 +41,39 @@ int4notin(PG_FUNCTION_ARGS)
{
int32 not_in_arg = PG_GETARG_INT32(0);
text *relation_and_attr = PG_GETARG_TEXT_P(1);
List *names;
int nnames;
RangeVar *relrv;
char *attribute;
Relation relation_to_scan;
int32 integer_value;
HeapTuple current_tuple;
HeapScanDesc scan_descriptor;
bool isNull,
retval;
int attrid,
strlength;
char *relation,
*attribute;
char my_copy[NAMEDATALEN * 2 + 2];
int attrid;
Datum value;
/* make a null-terminated copy of text */
strlength = VARSIZE(relation_and_attr) - VARHDRSZ;
if (strlength >= sizeof(my_copy))
strlength = sizeof(my_copy) - 1;
memcpy(my_copy, VARDATA(relation_and_attr), strlength);
my_copy[strlength] = '\0';
/* Parse the argument */
relation = (char *) strtok(my_copy, ".");
attribute = (char *) strtok(NULL, ".");
if (attribute == NULL)
names = textToQualifiedNameList(relation_and_attr, "int4notin");
nnames = length(names);
if (nnames < 2)
elog(ERROR, "int4notin: must provide relationname.attributename");
attribute = strVal(nth(nnames-1, names));
names = ltruncate(nnames-1, names);
relrv = makeRangeVarFromNameList(names);
/* Open the relation and get a relation descriptor */
relation_to_scan = heap_openr(relation, AccessShareLock);
relation_to_scan = heap_openrv(relrv, AccessShareLock);
/* Find the column to search */
attrid = my_varattno(relation_to_scan, attribute);
if (attrid < 0)
{
elog(ERROR, "int4notin: unknown attribute %s for relation %s",
attribute, relation);
}
attribute, RelationGetRelationName(relation_to_scan));
scan_descriptor = heap_beginscan(relation_to_scan, false, SnapshotNow,
0, (ScanKey) NULL);