Remove bogus code to apply PathTargets to partial paths. The partial paths that get modified may already have been used as part of a GatherPath which appears in the path list, so modifying them is not a good idea at this stage - especially because this code has no check that the PathTarget is in fact parallel-safe.
When partial aggregation is being performed, this is actually harmless because we'll end up replacing the pathtargets here with the correct ones within create_grouping_paths(). But if we've got a query tree containing only scan/join operations then this can result in incorrectly pushing down parallel-restricted target list entries. If those are, for example, references to subqueries, that can crash the server; but it's wrong in any event. Amit Kapila Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/04ae11f62e643e07c411c4935ea6af46cb112aa9 Modified Files -------------- src/backend/optimizer/plan/planner.c | 13 ------------- 1 file changed, 13 deletions(-) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
