diff options
Diffstat (limited to 'src/backend/utils/cache/lsyscache.c')
| -rw-r--r-- | src/backend/utils/cache/lsyscache.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c index cd7dc8d549f..ec0c45ea78a 100644 --- a/src/backend/utils/cache/lsyscache.c +++ b/src/backend/utils/cache/lsyscache.c @@ -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 1.86 2002/11/25 21:29:42 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.87 2002/12/01 21:05:14 tgl Exp $ * * NOTES * Eventually, the index information should go through here, too. @@ -416,6 +416,22 @@ op_hashjoinable(Oid opno, Oid ltype, Oid rtype) } /* + * op_strict + * + * Get the proisstrict flag for the operator's underlying function. + */ +bool +op_strict(Oid opno) +{ + RegProcedure funcid = get_opcode(opno); + + if (funcid == (RegProcedure) InvalidOid) + elog(ERROR, "Operator OID %u does not exist", opno); + + return func_strict((Oid) funcid); +} + +/* * op_volatile * * Get the provolatile flag for the operator's underlying function. @@ -607,6 +623,27 @@ get_func_retset(Oid funcid) } /* + * func_strict + * Given procedure id, return the function's proisstrict flag. + */ +bool +func_strict(Oid funcid) +{ + HeapTuple tp; + bool result; + + tp = SearchSysCache(PROCOID, + ObjectIdGetDatum(funcid), + 0, 0, 0); + if (!HeapTupleIsValid(tp)) + elog(ERROR, "Function OID %u does not exist", funcid); + + result = ((Form_pg_proc) GETSTRUCT(tp))->proisstrict; + ReleaseSysCache(tp); + return result; +} + +/* * func_volatile * Given procedure id, return the function's provolatile flag. */ |