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Commit73e3edf

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Push subplan clauses to the back in qual lists for join plans, not
only scan plans. Per observation from Rod Taylor.
1 parent147c164 commit73e3edf

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1 file changed

+15
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‎src/backend/optimizer/plan/createplan.c

Lines changed: 15 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -10,7 +10,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/createplan.c,v 1.155 2003/08/17 19:58:05 tgl Exp $
13+
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/createplan.c,v 1.156 2003/08/26 22:56:51 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -944,6 +944,10 @@ create_nestloop_plan(Query *root,
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otherclauses=NIL;
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}
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/* Sort clauses into best execution order */
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joinclauses=order_qual_clauses(root,joinclauses);
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otherclauses=order_qual_clauses(root,otherclauses);
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join_plan=make_nestloop(tlist,
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joinclauses,
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otherclauses,
@@ -995,6 +999,11 @@ create_mergejoin_plan(Query *root,
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mergeclauses=get_switched_clauses(best_path->path_mergeclauses,
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best_path->jpath.outerjoinpath->parent->relids);
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/* Sort clauses into best execution order */
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joinclauses=order_qual_clauses(root,joinclauses);
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otherclauses=order_qual_clauses(root,otherclauses);
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mergeclauses=order_qual_clauses(root,mergeclauses);
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/*
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* Create explicit sort nodes for the outer and inner join paths if
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* necessary. The sort cost was already accounted for in the path.
@@ -1078,6 +1087,11 @@ create_hashjoin_plan(Query *root,
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hashclauses=get_switched_clauses(best_path->path_hashclauses,
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best_path->jpath.outerjoinpath->parent->relids);
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/* Sort clauses into best execution order */
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joinclauses=order_qual_clauses(root,joinclauses);
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otherclauses=order_qual_clauses(root,otherclauses);
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hashclauses=order_qual_clauses(root,hashclauses);
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/*
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* Extract the inner hash keys (right-hand operands of the
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* hashclauses) to put in the Hash node.

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