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Fix LATERAL references to join alias variables.

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I had thought this case worked already, but perhaps I didn't re-test it
after adding extract_lateral_references() ...
This commit is contained in:
Tom Lane
2012-08-31 17:44:01 -04:00
parent f789909b59
commit da3df99870
4 changed files with 78 additions and 19 deletions
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4
src/backend/optimizer/util/var.c
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@ -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)