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Small HAVING cleanup.

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This commit is contained in:
Bruce Momjian 1998-03-31 23:31:10 +00:00
parent 9fbdda039d
commit 8dc48ba877
4 changed files with 16 additions and 11 deletions
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10
src/backend/optimizer/plan/planmain.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planmain.c,v 1.20 1998/02/26 04:32:50 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planmain.c,v 1.21 1998/03/31 23:30:49 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -187,7 +187,9 @@ query_planner(Query *root,
*/
if (constant_qual)
{
subplan = (Plan *) make_result((!root->hasAggs && !root->groupClause)
subplan = (Plan *) make_result((!root->hasAggs &&
!root->groupClause &&
!root->havingQual)
? tlist : subplan->targetlist,
(Node *) constant_qual,
subplan);
@ -195,7 +197,7 @@ query_planner(Query *root,
/*
* Change all varno's of the Result's node target list.
*/
if (!root->hasAggs && !root->groupClause)
if (!root->hasAggs && !root->groupClause && !root->havingQual)
set_tlist_references(subplan);
return subplan;
@ -216,7 +218,7 @@ query_planner(Query *root,
*/
else
{
if (!root->hasAggs && !root->groupClause)
if (!root->hasAggs && !root->groupClause && !root->havingQual)
subplan->targetlist = flatten_tlist_vars(tlist,
subplan->targetlist);
return subplan;

7
src/backend/optimizer/plan/planner.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planner.c,v 1.24 1998/03/30 16:36:04 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planner.c,v 1.25 1998/03/31 23:30:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -292,11 +292,10 @@ union_planner(Query *parse)
((Agg *) result_plan)->aggs =
set_agg_tlist_references((Agg *) result_plan);
/***S*H***/
if(parse->havingQual!=NULL) {
if(parse->havingQual != NULL) {
List *clause;
/***S*H***/ /* set qpqual of having clause */
/* set qpqual of having clause */
((Agg *) result_plan)->plan.qual=cnfify((Expr *)parse->havingQual,true);
foreach(clause, ((Agg *) result_plan)->plan.qual)

4
src/backend/optimizer/prep/prepunion.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.22 1998/03/31 04:43:49 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.23 1998/03/31 23:30:59 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -280,6 +280,8 @@ plan_inherit_query(List *relids,
new_root->uniqueFlag = NULL;
new_root->sortClause = NULL;
new_root->groupClause = NULL;
new_root->havingQual = NULL;
if (new_root->hasAggs)
{
new_root->hasAggs = false;

6
src/backend/parser/analyze.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.73 1998/03/30 16:47:02 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.74 1998/03/31 23:31:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -319,6 +319,9 @@ transformInsertStmt(ParseState *pstate, InsertStmt *stmt)
/* fix where clause */
qry->qual = transformWhereClause(pstate, stmt->whereClause);
qry->havingQual = transformWhereClause(pstate, stmt->havingClause);
qry->hasSubLinks = pstate->p_hasSubLinks;
/* now the range table will not change */
@ -784,7 +787,6 @@ transformSelectStmt(ParseState *pstate, SelectStmt *stmt)
qry->qual = transformWhereClause(pstate, stmt->whereClause);
/***S*H***/
qry->havingQual = transformWhereClause(pstate, stmt->havingClause);
qry->hasSubLinks = pstate->p_hasSubLinks;