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Diffstat (limited to 'src/backend/optimizer/util/var.c')
| -rw-r--r-- | src/backend/optimizer/util/var.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/src/backend/optimizer/util/var.c b/src/backend/optimizer/util/var.c index 8c9824e54d6..c55c5f805b3 100644 --- a/src/backend/optimizer/util/var.c +++ b/src/backend/optimizer/util/var.c @@ -198,16 +198,6 @@ pull_varnos_walker(Node *node, pull_varnos_context *context) * fall back to the conservative assumption that the PHV will be * evaluated at its syntactic level (phv->phrels). * - * There is a second hazard: this code is also used to examine - * qual clauses during deconstruct_jointree, when we may have a - * PlaceHolderInfo but its ph_eval_at value is not yet final, so - * that theoretically we could obtain a relid set that's smaller - * than we'd see later on. That should never happen though, - * because we deconstruct the jointree working upwards. Any outer - * join that forces delay of evaluation of a given qual clause - * will be processed before we examine that clause here, so the - * ph_eval_at value should have been updated to include it. - * * Another problem is that a PlaceHolderVar can appear in quals or * tlists that have been translated for use in a child appendrel. * Typically such a PHV is a parameter expression sourced by some |