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Clean up a few failures to set collation fields in expression nodes.

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I'm not sure these have any non-cosmetic implications, but I'm not sure
they don't, either.  In particular, ensure the CaseTestExpr generated
by transformAssignmentIndirection to represent the base target column
carries the correct collation, because parse_collate.c won't fix that.
Tweak lsyscache.c API so that we can get the appropriate collation
without an extra syscache lookup.
This commit is contained in:
Tom Lane
2011-03-26 14:25:48 -04:00
parent 92f4786fa9
commit b23c9fa929
9 changed files with 49 additions and 44 deletions
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2
src/backend/optimizer/util/clauses.c
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@@ -1816,7 +1816,7 @@ CommuteOpExpr(OpExpr *clause)
*/
clause->opno = opoid;
clause->opfuncid = InvalidOid;
/* opresulttype and opretset are assumed not to change */
/* opresulttype, opretset, opcollid, inputcollid need not change */
temp = linitial(clause->args);
linitial(clause->args) = lsecond(clause->args);