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Divide functions into three volatility classes (immutable, stable, and

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volatile), rather than the old cachable/noncachable distinction.  This
allows indexscan optimizations in many places where we formerly didn't.
Also, add a pronamespace column to pg_proc (it doesn't do anything yet,
however).
This commit is contained in:
Tom Lane
2002-04-05 00:31:36 +00:00
parent 0e11aea246
commit 4bdb4be62e
26 changed files with 1668 additions and 1542 deletions
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4
src/backend/parser/parse_func.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.122 2002/03/29 22:10:33 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.123 2002/04/05 00:31:27 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -525,7 +525,7 @@ func_get_candidates(char *funcname, int nargs)
(RegProcedure) F_INT2EQ,
Int16GetDatum(nargs));
funcscan = systable_beginscan(heapRelation, ProcedureNameIndex, true,
funcscan = systable_beginscan(heapRelation, ProcedureNameNspIndex, true,
SnapshotNow, 2, skey);
while (HeapTupleIsValid(tuple = systable_getnext(funcscan)))