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Ensure plan stability in contrib/btree_gist regression test.
Buildfarm member skink failed with symptoms suggesting that an auto-analyze had happened and changed the plan displayed for a test query. Although this is evidently of low probability, regression tests that sometimes fail are no fun, so add commands to force a bitmap scan to be chosen.
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@ -9,6 +9,7 @@ INSERT INTO test_ne SELECT '2009-01-01', 10.7 FROM generate_series(1,1000);
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INSERT INTO test_ne VALUES('2007-02-03', -91.3);
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INSERT INTO test_ne VALUES('2011-09-01', 43.7);
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INSERT INTO test_ne SELECT '2009-01-01', 10.7 FROM generate_series(1,1000);
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SET enable_indexscan to false;
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EXPLAIN (COSTS OFF) SELECT * FROM test_ne WHERE a <> '2009-01-01' AND b <> 10.7;
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QUERY PLAN
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------------------------------------------------------------------------------------------------------
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@ -25,6 +26,7 @@ SELECT * FROM test_ne WHERE a <> '2009-01-01' AND b <> 10.7;
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Thu Sep 01 00:00:00 2011 | 43.7
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(2 rows)
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RESET enable_indexscan;
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-- test search for "not equals" using an exclusion constraint
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CREATE TABLE zoo (
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cage INTEGER,
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@ -14,10 +14,14 @@ INSERT INTO test_ne VALUES('2007-02-03', -91.3);
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INSERT INTO test_ne VALUES('2011-09-01', 43.7);
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INSERT INTO test_ne SELECT '2009-01-01', 10.7 FROM generate_series(1,1000);
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SET enable_indexscan to false;
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EXPLAIN (COSTS OFF) SELECT * FROM test_ne WHERE a <> '2009-01-01' AND b <> 10.7;
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SELECT * FROM test_ne WHERE a <> '2009-01-01' AND b <> 10.7;
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RESET enable_indexscan;
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-- test search for "not equals" using an exclusion constraint
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CREATE TABLE zoo (
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