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MergeSort was sometimes called mergejoin and was confusing. Now

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it is now only mergejoin.
This commit is contained in:
Bruce Momjian
1998-08-04 16:44:31 +00:00
parent 7db9ea5c1e
commit d9be0ff432
23 changed files with 117 additions and 116 deletions
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4
src/backend/optimizer/util/joininfo.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/joininfo.c,v 1.8 1998/07/18 04:22:40 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/joininfo.c,v 1.9 1998/08/04 16:44:17 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -72,7 +72,7 @@ find_joininfo_node(RelOptInfo *this_rel, List *join_relids)
joininfo = makeNode(JInfo);
joininfo->otherrels = join_relids;
joininfo->jinfoclauseinfo = NIL;
joininfo->mergesortable = false;
joininfo->mergejoinable = false;
joininfo->hashjoinable = false;
joininfo->inactive = false;
this_rel->joininfo = lcons(joininfo, this_rel->joininfo);

10
src/backend/optimizer/util/pathnode.c
View File

@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/pathnode.c,v 1.9 1998/07/18 04:22:41 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/pathnode.c,v 1.10 1998/08/04 16:44:18 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -462,8 +462,8 @@ create_nestloop_path(RelOptInfo *joinrel,
}
/*
* create_mergesort_path--
* Creates a pathnode corresponding to a mergesort join between
* create_mergejoin_path--
* Creates a pathnode corresponding to a mergejoin join between
* two relations
*
* 'joinrel' is the join relation
@@ -481,7 +481,7 @@ create_nestloop_path(RelOptInfo *joinrel,
*
*/
MergePath *
create_mergesort_path(RelOptInfo *joinrel,
create_mergejoin_path(RelOptInfo *joinrel,
int outersize,
int innersize,
int outerwidth,
@@ -509,7 +509,7 @@ create_mergesort_path(RelOptInfo *joinrel,
pathnode->outersortkeys = outersortkeys;
pathnode->innersortkeys = innersortkeys;
pathnode->jpath.path.path_cost =
cost_mergesort(outer_path->path_cost,
cost_mergejoin(outer_path->path_cost,
inner_path->path_cost,
outersortkeys,
innersortkeys,