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Fix obsolete comment. It's no longer the case that Param nodes don't
carry typmod.
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@ -7,7 +7,7 @@
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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/plan/subselect.c,v 1.135 2008/08/17 02:19:19 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/optimizer/plan/subselect.c,v 1.136 2008/08/20 15:49:30 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -94,14 +94,9 @@ replace_outer_var(PlannerInfo *root, Var *var)
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* NOTE: in sufficiently complex querytrees, it is possible for the same
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* varno/abslevel to refer to different RTEs in different parts of the
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* parsetree, so that different fields might end up sharing the same Param
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* number. As long as we check the vartype as well, I believe that this
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* sort of aliasing will cause no trouble. The correct field should get
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* stored into the Param slot at execution in each part of the tree.
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*
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* We also need to demand a match on vartypmod. This does not matter for
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* the Param itself, since those are not typmod-dependent, but it does
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* matter when make_subplan() instantiates a modified copy of the Var for
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* a subplan's args list.
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* number. As long as we check the vartype/typmod as well, I believe that
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* this sort of aliasing will cause no trouble. The correct field should
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* get stored into the Param slot at execution in each part of the tree.
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*/
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i = 0;
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foreach(ppl, root->glob->paramlist)
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