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Tweak selectivity and related routines to cope with domains. Per report

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from Andreas Pflug.
This commit is contained in:
Tom Lane
2003-03-23 01:49:13 +00:00
parent e8b9aeea41
commit 2d0cf42cd4
2 changed files with 71 additions and 25 deletions
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13
src/backend/optimizer/path/indxpath.c
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@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.124 2002/11/01 19:33:09 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.124.2.1 2003/03/23 01:49:13 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1848,7 +1848,7 @@ expand_indexqual_conditions(List *indexquals)
* Given a fixed prefix that all the "leftop" values must have,
* generate suitable indexqual condition(s). expr_op is the original
* LIKE or regex operator; we use it to deduce the appropriate comparison
* operators.
* operators and operand datatypes.
*/
static List *
prefix_quals(Var *leftop, Oid expr_op,
@@ -1904,10 +1904,13 @@ prefix_quals(Var *leftop, Oid expr_op,
return NIL;
}
if (prefix_const->consttype != BYTEAOID)
prefix = DatumGetCString(DirectFunctionCall1(textout, prefix_const->constvalue));
/* Prefix constant is text for all except BYTEA_LIKE */
if (datatype != BYTEAOID)
prefix = DatumGetCString(DirectFunctionCall1(textout,
prefix_const->constvalue));
else
prefix = DatumGetCString(DirectFunctionCall1(byteaout, prefix_const->constvalue));
prefix = DatumGetCString(DirectFunctionCall1(byteaout,
prefix_const->constvalue));
/*
* If we found an exact-match pattern, generate an "=" indexqual.