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Revert thinko introduced into prefix_selectivity() by my recent patch:

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make_greater_string needs the < procedure not the >= one.  Spotted by
Peter.
This commit is contained in:
Tom Lane 2008-03-17 17:13:54 +00:00
parent 23057f51f5
commit 164899db1c
1 changed files with 7 additions and 7 deletions
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12
src/backend/utils/adt/selfuncs.c
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@ -15,7 +15,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/selfuncs.c,v 1.245 2008/03/09 00:32:09 tgl Exp $ * $PostgreSQL: pgsql/src/backend/utils/adt/selfuncs.c,v 1.246 2008/03/17 17:13:54 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -4531,17 +4531,17 @@ prefix_selectivity(VariableStatData *vardata,
* "x < greaterstr". * "x < greaterstr".
*------- *-------
*/ */
greaterstrcon = make_greater_string(prefixcon, &opproc);
if (greaterstrcon)
{
Selectivity topsel;
cmpopr = get_opfamily_member(opfamily, vartype, vartype, cmpopr = get_opfamily_member(opfamily, vartype, vartype,
BTLessStrategyNumber); BTLessStrategyNumber);
if (cmpopr == InvalidOid) if (cmpopr == InvalidOid)
elog(ERROR, "no < operator for opfamily %u", opfamily); elog(ERROR, "no < operator for opfamily %u", opfamily);
fmgr_info(get_opcode(cmpopr), &opproc); fmgr_info(get_opcode(cmpopr), &opproc);
greaterstrcon = make_greater_string(prefixcon, &opproc);
if (greaterstrcon)
{
Selectivity topsel;
topsel = ineq_histogram_selectivity(vardata, &opproc, false, topsel = ineq_histogram_selectivity(vardata, &opproc, false,
greaterstrcon->constvalue, greaterstrcon->constvalue,
greaterstrcon->consttype); greaterstrcon->consttype);