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Executor no longer cares about mergejoinop, mergerightorder, mergeleftorder,
so remove them from MergeJoin node. Hack together a partial solution for commuted mergejoin operators --- yesterday a mergejoin int4 = int8 would crash if the planner decided to commute it, today it works. The planner's representation of mergejoins really needs a rewrite though. Also, further testing of mergejoin ops in opr_sanity regress test.
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.74 1999/02/22 19:55:42 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.75 1999/03/01 00:10:30 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -326,16 +326,6 @@ _copyMergeJoin(MergeJoin *from)
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*/
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Node_Copy(from, newnode, mergeclauses);
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newnode->mergejoinop = from->mergejoinop;
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newnode->mergerightorder = (Oid *) palloc(sizeof(Oid) * 2);
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newnode->mergerightorder[0] = from->mergerightorder[0];
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newnode->mergerightorder[1] = 0;
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newnode->mergeleftorder = (Oid *) palloc(sizeof(Oid) * 2);
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newnode->mergeleftorder[0] = from->mergeleftorder[0];
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newnode->mergeleftorder[1] = 0;
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return newnode;
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}
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