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Fix for OR handling with multiple indexes.

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This commit is contained in:
Bruce Momjian
1998-08-02 07:10:38 +00:00
parent 34aecb3557
commit 39844ac2c3
1 changed files with 11 additions and 5 deletions
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16
src/backend/optimizer/path/indxpath.c
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@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.21 1998/08/01 22:44:53 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.22 1998/08/02 07:10:38 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -307,13 +307,18 @@ match_index_orclause(RelOptInfo *rel,
List *other_matching_indices) List *other_matching_indices)
{ {
Node *clause = NULL; Node *clause = NULL;
List *matched_indices = other_matching_indices; List *matched_indices;
List *index_list = NIL; List *index_list = NIL;
List *clist; List *clist;
foreach(clist, or_clauses) foreach(clist, or_clauses)
{ {
clause = lfirst(clist); clause = lfirst(clist);
if (other_matching_indices)
matched_indices = lfirst(other_matching_indices);
else
matched_indices = NIL;
if (is_opclause(clause) && if (is_opclause(clause) &&
op_class(((Oper *) ((Expr *) clause)->oper)->opno, op_class(((Oper *) ((Expr *) clause)->oper)->opno,
xclass, index->relam) && xclass, index->relam) &&
@ -330,11 +335,12 @@ match_index_orclause(RelOptInfo *rel,
{ {
matched_indices = lcons(index, matched_indices); matched_indices = lcons(index, matched_indices);
} }
index_list = lappend(index_list, matched_indices);
/* for the first index, we are creating the indexids list */ /* for the first index, we are creating the indexids list */
if (matched_indices) index_list = lappend(index_list, matched_indices);
matched_indices = lnext(matched_indices);
if (other_matching_indices)
other_matching_indices = lnext(other_matching_indices);
} }
return (index_list); return (index_list);