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Implement CREATE/DROP OPERATOR CLASS. Work still remains: need more

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documentation (xindex.sgml should be rewritten), need to teach pg_dump
about it, need to update contrib modules that currently build pg_opclass
entries by hand.  Original patch by Bill Studenmund, grammar adjustments
and general update for 7.3 by Tom Lane.
This commit is contained in:
Tom Lane
2002-07-29 22:14:11 +00:00
parent b9459c6adb
commit ea4686e3e1
26 changed files with 1697 additions and 373 deletions
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80
src/backend/utils/adt/regproc.c
View File

@@ -13,7 +13,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/regproc.c,v 1.71 2002/07/20 05:16:58 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/regproc.c,v 1.72 2002/07/29 22:14:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -280,23 +280,19 @@ regprocedurein(PG_FUNCTION_ARGS)
}
/*
* regprocedureout - converts proc OID to "pro_name(args)"
* format_procedure - converts proc OID to "pro_name(args)"
*
* This exports the useful functionality of regprocedureout for use
* in other backend modules. The result is a palloc'd string.
*/
Datum
regprocedureout(PG_FUNCTION_ARGS)
char *
format_procedure(Oid procedure_oid)
{
RegProcedure proid = PG_GETARG_OID(0);
char *result;
HeapTuple proctup;
if (proid == InvalidOid)
{
result = pstrdup("-");
PG_RETURN_CSTRING(result);
}
proctup = SearchSysCache(PROCOID,
ObjectIdGetDatum(proid),
ObjectIdGetDatum(procedure_oid),
0, 0, 0);
if (HeapTupleIsValid(proctup))
@@ -316,7 +312,7 @@ regprocedureout(PG_FUNCTION_ARGS)
* Would this proc be found (given the right args) by regprocedurein?
* If not, we need to qualify it.
*/
if (FunctionIsVisible(proid))
if (FunctionIsVisible(procedure_oid))
nspname = NULL;
else
nspname = get_namespace_name(procform->pronamespace);
@@ -344,9 +340,26 @@ regprocedureout(PG_FUNCTION_ARGS)
{
/* If OID doesn't match any pg_proc entry, return it numerically */
result = (char *) palloc(NAMEDATALEN);
snprintf(result, NAMEDATALEN, "%u", proid);
snprintf(result, NAMEDATALEN, "%u", procedure_oid);
}
return result;
}
/*
* regprocedureout - converts proc OID to "pro_name(args)"
*/
Datum
regprocedureout(PG_FUNCTION_ARGS)
{
RegProcedure proid = PG_GETARG_OID(0);
char *result;
if (proid == InvalidOid)
result = pstrdup("-");
else
result = format_procedure(proid);
PG_RETURN_CSTRING(result);
}
@@ -602,23 +615,19 @@ regoperatorin(PG_FUNCTION_ARGS)
}
/*
* regoperatorout - converts operator OID to "opr_name(args)"
* format_operator - converts operator OID to "opr_name(args)"
*
* This exports the useful functionality of regoperatorout for use
* in other backend modules. The result is a palloc'd string.
*/
Datum
regoperatorout(PG_FUNCTION_ARGS)
char *
format_operator(Oid operator_oid)
{
Oid oprid = PG_GETARG_OID(0);
char *result;
HeapTuple opertup;
if (oprid == InvalidOid)
{
result = pstrdup("0");
PG_RETURN_CSTRING(result);
}
opertup = SearchSysCache(OPEROID,
ObjectIdGetDatum(oprid),
ObjectIdGetDatum(operator_oid),
0, 0, 0);
if (HeapTupleIsValid(opertup))
@@ -636,7 +645,7 @@ regoperatorout(PG_FUNCTION_ARGS)
* Would this oper be found (given the right args) by regoperatorin?
* If not, we need to qualify it.
*/
if (!OperatorIsVisible(oprid))
if (!OperatorIsVisible(operator_oid))
{
nspname = get_namespace_name(operform->oprnamespace);
appendStringInfo(&buf, "%s.",
@@ -665,9 +674,26 @@ regoperatorout(PG_FUNCTION_ARGS)
{
/* If OID doesn't match any pg_operator entry, return it numerically */
result = (char *) palloc(NAMEDATALEN);
snprintf(result, NAMEDATALEN, "%u", oprid);
snprintf(result, NAMEDATALEN, "%u", operator_oid);
}
return result;
}
/*
* regoperatorout - converts operator OID to "opr_name(args)"
*/
Datum
regoperatorout(PG_FUNCTION_ARGS)
{
Oid oprid = PG_GETARG_OID(0);
char *result;
if (oprid == InvalidOid)
result = pstrdup("0");
else
result = format_operator(oprid);
PG_RETURN_CSTRING(result);
}