Hi,
For contain_placeholders():
+ if (IsA(node, Query))
+ return query_tree_walker((Query *) node, contain_placeholders,
context, 0);
+ else if (IsA(node, PlaceHolderVar))
The `else` is not needed.
For correlated_t struct, it would be better if the fields have comments.
+ * (for grouping, as an example). So, revert its status
to
+ * a full valued entry.
full valued -> fully valued
Cheers