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Revert thinko introduced into prefix_selectivity() by my recent patch:
make_greater_string needs the < procedure not the >= one. Spotted by Peter.
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@ -15,7 +15,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/utils/adt/selfuncs.c,v 1.245 2008/03/09 00:32:09 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/utils/adt/selfuncs.c,v 1.246 2008/03/17 17:13:54 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -4531,17 +4531,17 @@ prefix_selectivity(VariableStatData *vardata,
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* "x < greaterstr".
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*-------
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*/
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greaterstrcon = make_greater_string(prefixcon, &opproc);
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if (greaterstrcon)
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{
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Selectivity topsel;
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cmpopr = get_opfamily_member(opfamily, vartype, vartype,
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BTLessStrategyNumber);
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if (cmpopr == InvalidOid)
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elog(ERROR, "no < operator for opfamily %u", opfamily);
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fmgr_info(get_opcode(cmpopr), &opproc);
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greaterstrcon = make_greater_string(prefixcon, &opproc);
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if (greaterstrcon)
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{
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Selectivity topsel;
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topsel = ineq_histogram_selectivity(vardata, &opproc, false,
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greaterstrcon->constvalue,
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greaterstrcon->consttype);
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