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Fix whole-row references in postgres_fdw.

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The optimization to not retrieve unnecessary columns wasn't smart enough.
Noted by Thom Brown.
This commit is contained in:
Tom Lane
2013-02-22 09:21:50 -05:00
parent 211e157a51
commit 6da378dbc9
3 changed files with 39 additions and 1 deletions
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3
contrib/postgres_fdw/sql/postgres_fdw.sql
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@ -136,6 +136,9 @@ EXPLAIN (COSTS false) SELECT * FROM ft1 ORDER BY c3, c1 OFFSET 100 LIMIT 10;
SELECT * FROM ft1 ORDER BY c3, c1 OFFSET 100 LIMIT 10;
EXPLAIN (VERBOSE, COSTS false) SELECT * FROM ft1 t1 ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10;
SELECT * FROM ft1 t1 ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10;
-- whole-row reference
EXPLAIN (VERBOSE, COSTS false) SELECT t1 FROM ft1 t1 ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10;
SELECT t1 FROM ft1 t1 ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10;
-- empty result
SELECT * FROM ft1 WHERE false;
-- with WHERE clause