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Cross-data-type comparisons are now indexable by btrees, pursuant to my

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pghackers proposal of 8-Nov.  All the existing cross-type comparison
operators (int2/int4/int8 and float4/float8) have appropriate support.
The original proposal of storing the right-hand-side datatype as part of
the primary key for pg_amop and pg_amproc got modified a bit in the event;
it is easier to store zero as the 'default' case and only store a nonzero
when the operator is actually cross-type.  Along the way, remove the
long-since-defunct bigbox_ops operator class.
This commit is contained in:
Tom Lane
2003-11-12 21:15:59 +00:00
parent 49f98fa833
commit fa5c8a055a
76 changed files with 2237 additions and 1492 deletions
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11
src/backend/utils/adt/selfuncs.c
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@ -15,7 +15,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.147 2003/10/16 21:37:54 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.148 2003/11/12 21:15:55 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -952,7 +952,8 @@ patternsel(PG_FUNCTION_ARGS, Pattern_Type ptype)
/*
* Pattern specifies an exact match, so pretend operator is '='
*/
Oid eqopr = get_opclass_member(opclass, BTEqualStrategyNumber);
Oid eqopr = get_opclass_member(opclass, InvalidOid,
BTEqualStrategyNumber);
List *eqargs;
if (eqopr == InvalidOid)
@ -3382,7 +3383,8 @@ prefix_selectivity(Query *root, Var *var, Oid opclass, Const *prefixcon)
List *cmpargs;
Const *greaterstrcon;
cmpopr = get_opclass_member(opclass, BTGreaterEqualStrategyNumber);
cmpopr = get_opclass_member(opclass, InvalidOid,
BTGreaterEqualStrategyNumber);
if (cmpopr == InvalidOid)
elog(ERROR, "no >= operator for opclass %u", opclass);
cmpargs = makeList2(var, prefixcon);
@ -3403,7 +3405,8 @@ prefix_selectivity(Query *root, Var *var, Oid opclass, Const *prefixcon)
{
Selectivity topsel;
cmpopr = get_opclass_member(opclass, BTLessStrategyNumber);
cmpopr = get_opclass_member(opclass, InvalidOid,
BTLessStrategyNumber);
if (cmpopr == InvalidOid)
elog(ERROR, "no < operator for opclass %u", opclass);
cmpargs = makeList2(var, greaterstrcon);