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Remove Existential, and ifdef out generate_fjoin. Neither did anything.

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Bruce Momjian
1997-12-18 12:54:45 +00:00
parent 4469eb63a3
commit 6a45941f2f
13 changed files with 26 additions and 200 deletions
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59
src/backend/optimizer/prep/prepqual.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepqual.c,v 1.6 1997/09/08 21:45:31 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepqual.c,v 1.7 1997/12/18 12:54:15 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -36,42 +36,6 @@ static List *qualcleanup(Expr *qual);
static List *remove_ands(Expr *qual);
static List *remove_duplicates(List *list);
/*
* preprocess-qualification--
* Driver routine for modifying the parse tree qualification.
*
* Returns the new base qualification and the existential qualification
* in existentialQualPtr.
*
* XXX right now, update_clauses() does nothing so
* preprocess-qualification simply converts the qual in conjunctive
* normal form (see cnfify() below )
*/
List *
preprocess_qualification(Expr *qual, List *tlist, List **existentialQualPtr)
{
List *cnf_qual = cnfify(qual, true);
/*
List *existential_qual =
update_clauses(intCons(_query_result_relation_,
update_relations(tlist)),
cnf_qual,
_query_command_type_);
if (existential_qual) {
*existentialQualPtr = existential_qual;
return set_difference(cnf_qual, existential_qual);
} else {
*existentialQualPtr = NIL;
return cnf_qual;
}
*/
/* update_clauses() is not working right now */
*existentialQualPtr = NIL;
return cnf_qual;
}
/*****************************************************************************
*
* CNF CONVERSION ROUTINES
@@ -607,27 +571,6 @@ remove_ands(Expr *qual)
}
}
/*****************************************************************************
*
* EXISTENTIAL QUALIFICATIONS
*
*****************************************************************************/
/*
* update-relations--
* Returns the range table indices (i.e., varnos) for all relations which
* are referenced in the target list.
*
*/
#ifdef NOT_USED
static List *
update_relations(List *tlist)
{
return (NIL);
}
#endif
/*****************************************************************************
*
*