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Fix oversight in recent parameterized-path patch.

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bitmap_scan_cost_est() has to be able to cope with a BitmapOrPath, but
I'd taken a shortcut that didn't work for that case.  Noted by Heikki.
Add some regression tests since this area is evidently under-covered.
This commit is contained in:
Tom Lane
2012-04-26 14:17:13 -04:00
parent ba3e4157a7
commit 7c85aa39fc
3 changed files with 75 additions and 5 deletions
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16
src/test/regress/sql/create_index.sql
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@@ -858,6 +858,22 @@ RESET enable_bitmapscan;
DROP TABLE onek_with_null;
--
-- Check bitmap index path planning
--
EXPLAIN (COSTS OFF)
SELECT * FROM tenk1
WHERE thousand = 42 AND (tenthous = 1 OR tenthous = 3 OR tenthous = 42);
SELECT * FROM tenk1
WHERE thousand = 42 AND (tenthous = 1 OR tenthous = 3 OR tenthous = 42);
EXPLAIN (COSTS OFF)
SELECT count(*) FROM tenk1
WHERE hundred = 42 AND (thousand = 42 OR thousand = 99);
SELECT count(*) FROM tenk1
WHERE hundred = 42 AND (thousand = 42 OR thousand = 99);
--
-- Check behavior with duplicate index column contents
--