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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2012-08-31 17:44:01 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2012-08-31 17:44:31 -0400 |
| commit | da3df998702061b4b63d83d5354b148e812f21f8 (patch) | |
| tree | 6a622788d29e9cdf3b7ee9db6d25832684cc26e7 /src/backend/optimizer/util/var.c | |
| parent | f789909b59c59a33e34feac3bed2c86f18159122 (diff) | |
| download | postgresql-da3df998702061b4b63d83d5354b148e812f21f8.tar.gz postgresql-da3df998702061b4b63d83d5354b148e812f21f8.zip | |
Fix LATERAL references to join alias variables.
I had thought this case worked already, but perhaps I didn't re-test it
after adding extract_lateral_references() ...
Diffstat (limited to 'src/backend/optimizer/util/var.c')
| -rw-r--r-- | src/backend/optimizer/util/var.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/backend/optimizer/util/var.c b/src/backend/optimizer/util/var.c index a0668c9615b..db9a1164ad3 100644 --- a/src/backend/optimizer/util/var.c +++ b/src/backend/optimizer/util/var.c @@ -600,7 +600,9 @@ pull_var_clause_walker(Node *node, pull_var_clause_context *context) * hasSubLinks = TRUE, so this is only relevant to un-flattened subqueries. * * NOTE: this is used on not-yet-planned expressions. We do not expect it - * to be applied directly to a Query node. + * to be applied directly to the whole Query, so if we see a Query to start + * with, we do want to increment sublevels_up (this occurs for LATERAL + * subqueries). */ Node * flatten_join_alias_vars(PlannerInfo *root, Node *node) |