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Fix bushy plans. Cleanup.

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This commit is contained in:
Bruce Momjian
1999-02-18 00:49:48 +00:00
parent c82ca4c158
commit 31cce21fb0
22 changed files with 182 additions and 365 deletions
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28
src/backend/optimizer/plan/initsplan.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/initsplan.c,v 1.27 1999/02/15 05:21:06 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/initsplan.c,v 1.28 1999/02/18 00:49:26 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -41,8 +41,8 @@ extern int Quiet;
static void add_restrict_and_join_to_rel(Query *root, List *clause);
static void add_join_info_to_rels(Query *root, RestrictInfo *restrictinfo,
List *join_relids);
static void add_vars_to_targetlist(Query *root, List *vars, List *join_relids);
Relids join_relids);
static void add_vars_to_targetlist(Query *root, List *vars, Relids join_relids);
static MergeOrder *mergejoinop(Expr *clause);
static Oid hashjoinop(Expr *clause);
@@ -107,7 +107,7 @@ add_missing_vars_to_tlist(Query *root, List *tlist)
foreach(l, root->rtable)
{
RangeTblEntry *rte = (RangeTblEntry *) lfirst(l);
List *relids;
Relids relids;
RelOptInfo *result;
Var *var;
@@ -165,7 +165,7 @@ add_restrict_and_join_to_rels(Query *root, List *clauses)
static void
add_restrict_and_join_to_rel(Query *root, List *clause)
{
List *relids;
Relids relids;
List *vars;
RestrictInfo *restrictinfo = makeNode(RestrictInfo);
@@ -235,31 +235,31 @@ add_restrict_and_join_to_rel(Query *root, List *clause)
* 'restrictinfo' describes the join clause
* 'join_relids' is the list of relations participating in the join clause
*
* Returns nothing.
*
*/
static void
add_join_info_to_rels(Query *root, RestrictInfo *restrictinfo, List *join_relids)
add_join_info_to_rels(Query *root, RestrictInfo *restrictinfo,
Relids join_relids)
{
List *join_relid;
/* For every relid, find the rel, and add the proper join entries */
foreach(join_relid, join_relids)
{
JoinInfo *joininfo;
List *unjoined_rels = NIL;
List *rel;
Relids unjoined_relids = NIL;
List *rel;
/* Get the relids not equal to the current relid */
foreach(rel, join_relids)
{
if (lfirsti(rel) != lfirsti(join_relid))
unjoined_rels = lappendi(unjoined_rels, lfirsti(rel));
unjoined_relids = lappendi(unjoined_relids, lfirsti(rel));
}
joininfo = find_joininfo_node(get_base_rel(root, lfirsti(join_relid)),
unjoined_rels);
unjoined_relids);
joininfo->jinfo_restrictinfo = lcons(copyObject((void *) restrictinfo),
joininfo->jinfo_restrictinfo);
}
}
@@ -279,7 +279,7 @@ add_join_info_to_rels(Query *root, RestrictInfo *restrictinfo, List *join_relids
* Returns nothing.
*/
static void
add_vars_to_targetlist(Query *root, List *vars, List *join_relids)
add_vars_to_targetlist(Query *root, List *vars, Relids join_relids)
{
Var *var;
List *temp = NIL;