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Generate a more specific error message when an operator used
in an index doesn't have a restriction selectivity estimator.
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parent
cc384fa240
commit
81ced1e037
@ -12,7 +12,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.28 1999/05/25 16:12:20 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.29 1999/05/31 19:32:47 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -404,7 +404,21 @@ btreesel(Oid operatorObjectId,
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}
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else
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{
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result = (float64) fmgr(get_oprrest(operatorObjectId),
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RegProcedure oprrest = get_oprrest(operatorObjectId);
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/*
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* Operators used for indexes should have selectivity estimators.
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* (An alternative is to default to 0.5, as the optimizer does in
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* dealing with operators occurring in WHERE clauses, but if you
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* are going to the trouble of making index support you probably
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* don't want to miss the benefits of a good selectivity estimate.)
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*/
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if (!oprrest)
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elog(ERROR,
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"Operator %u must have a restriction selectivity estimator to be used in a btree index",
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operatorObjectId);
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result = (float64) fmgr(oprrest,
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(char *) operatorObjectId,
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(char *) indrelid,
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(char *) (int) attributeNumber,
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@ -449,7 +463,21 @@ btreenpage(Oid operatorObjectId,
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}
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else
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{
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temp = (float64) fmgr(get_oprrest(operatorObjectId),
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RegProcedure oprrest = get_oprrest(operatorObjectId);
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/*
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* Operators used for indexes should have selectivity estimators.
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* (An alternative is to default to 0.5, as the optimizer does in
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* dealing with operators occurring in WHERE clauses, but if you
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* are going to the trouble of making index support you probably
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* don't want to miss the benefits of a good selectivity estimate.)
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*/
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if (!oprrest)
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elog(ERROR,
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"Operator %u must have a restriction selectivity estimator to be used in a btree index",
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operatorObjectId);
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temp = (float64) fmgr(oprrest,
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(char *) operatorObjectId,
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(char *) indrelid,
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(char *) (int) attributeNumber,
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@ -514,7 +542,21 @@ hashsel(Oid operatorObjectId,
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}
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else
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{
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result = (float64) fmgr(get_oprrest(operatorObjectId),
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RegProcedure oprrest = get_oprrest(operatorObjectId);
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/*
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* Operators used for indexes should have selectivity estimators.
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* (An alternative is to default to 0.5, as the optimizer does in
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* dealing with operators occurring in WHERE clauses, but if you
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* are going to the trouble of making index support you probably
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* don't want to miss the benefits of a good selectivity estimate.)
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*/
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if (!oprrest)
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elog(ERROR,
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"Operator %u must have a restriction selectivity estimator to be used in a hash index",
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operatorObjectId);
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result = (float64) fmgr(oprrest,
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(char *) operatorObjectId,
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(char *) indrelid,
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(char *) (int) attributeNumber,
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@ -578,7 +620,21 @@ hashnpage(Oid operatorObjectId,
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}
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else
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{
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temp = (float64) fmgr(get_oprrest(operatorObjectId),
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RegProcedure oprrest = get_oprrest(operatorObjectId);
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/*
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* Operators used for indexes should have selectivity estimators.
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* (An alternative is to default to 0.5, as the optimizer does in
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* dealing with operators occurring in WHERE clauses, but if you
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* are going to the trouble of making index support you probably
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* don't want to miss the benefits of a good selectivity estimate.)
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*/
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if (!oprrest)
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elog(ERROR,
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"Operator %u must have a restriction selectivity estimator to be used in a hash index",
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operatorObjectId);
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temp = (float64) fmgr(oprrest,
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(char *) operatorObjectId,
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(char *) indrelid,
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(char *) (int) attributeNumber,
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