Tom Lane 6c59886942 Second try at fixing join alias variables. Instead of attaching miscellaneous ...

lists to join RTEs, attach a list of Vars and COALESCE expressions that will
replace the join's alias variables during planning.  This simplifies
flatten_join_alias_vars while still making it easy to fix up varno references
when transforming the query tree.  Add regression test cases for interactions
of subqueries with outer joins.

2002-04-28 19:54:29 +00:00

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