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Merge Resdom nodes into TargetEntry nodes to simplify code and save a
few palloc's. I also chose to eliminate the restype and restypmod fields entirely, since they are redundant with information stored in the node's contained expression; re-examining the expression at need seems simpler and more reliable than trying to keep restype/restypmod up to date. initdb forced due to change in contents of stored rules.
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@ -11,7 +11,7 @@
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/optimizer/path/pathkeys.c,v 1.65 2005/03/27 06:29:36 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/optimizer/path/pathkeys.c,v 1.66 2005/04/06 16:34:05 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -791,7 +791,7 @@ build_subquery_pathkeys(Query *root, RelOptInfo *rel, Query *subquery)
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{
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TargetEntry *tle = (TargetEntry *) lfirst(k);
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if (!tle->resdom->resjunk &&
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if (!tle->resjunk &&
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equal(tle->expr, sub_key))
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{
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/* Found a representation for this sub_key */
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@ -800,9 +800,9 @@ build_subquery_pathkeys(Query *root, RelOptInfo *rel, Query *subquery)
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int score;
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outer_var = makeVar(rel->relid,
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tle->resdom->resno,
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tle->resdom->restype,
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tle->resdom->restypmod,
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tle->resno,
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exprType((Node *) tle->expr),
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exprTypmod((Node *) tle->expr),
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0);
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outer_item = makePathKeyItem((Node *) outer_var,
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sub_item->sortop,
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