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Commiteed17f3

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committed
Stabilize contrib/seg regression test.
If autovacuum comes along just after we fill table test_seg withsome data, it will update the stats to the point where we prefera plain indexscan over a bitmap scan, breaking the expectedoutput (as well as the point of the test case). To fix, justforce a bitmap scan to be chosen here.This has evidently been wrong since commitde1d042. It's notclear why we just recently saw any buildfarm failures due to it;but prairiedog has failed twice on this test in the past week.Hence, backpatch to v11 where this test case came in.
1 parent5b64368 commiteed17f3

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‎contrib/seg/expected/seg.out

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@@ -930,6 +930,7 @@ SELECT '1'::seg <@ '-1 .. 1'::seg AS bool;
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CREATE TABLE test_seg (s seg);
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\copy test_seg from 'data/test_seg.data'
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CREATE INDEX test_seg_ix ON test_seg USING gist (s);
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SET enable_indexscan = false;
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EXPLAIN (COSTS OFF)
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SELECT count(*) FROM test_seg WHERE s @> '11..11.3';
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QUERY PLAN
@@ -947,6 +948,7 @@ SELECT count(*) FROM test_seg WHERE s @> '11..11.3';
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143
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(1 row)
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RESET enable_indexscan;
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SET enable_bitmapscan = false;
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EXPLAIN (COSTS OFF)
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SELECT count(*) FROM test_seg WHERE s @> '11..11.3';

‎contrib/seg/sql/seg.sql

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Original file line numberDiff line numberDiff line change
@@ -217,9 +217,11 @@ CREATE TABLE test_seg (s seg);
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CREATEINDEXtest_seg_ixON test_seg USING gist (s);
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SET enable_indexscan= false;
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EXPLAIN (COSTS OFF)
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SELECTcount(*)FROM test_segWHERE s @>'11..11.3';
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SELECTcount(*)FROM test_segWHERE s @>'11..11.3';
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RESET enable_indexscan;
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SET enable_bitmapscan= false;
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EXPLAIN (COSTS OFF)

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