From d94977ef1cef8810a6a7692a1debd56b7811b2aa Mon Sep 17 00:00:00 2001
From: Tom Lane
Date: Thu, 12 May 2016 20:04:12 -0400
Subject: 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.
---
 contrib/btree_gist/sql/not_equal.sql | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'contrib/btree_gist/sql')

diff --git a/contrib/btree_gist/sql/not_equal.sql b/contrib/btree_gist/sql/not_equal.sql
index b1940ef4fe7..6dfac5d0aae 100644
--- a/contrib/btree_gist/sql/not_equal.sql
+++ b/contrib/btree_gist/sql/not_equal.sql
@@ -14,10 +14,14 @@ INSERT INTO test_ne VALUES('2007-02-03', -91.3);
 INSERT INTO test_ne VALUES('2011-09-01', 43.7);
 INSERT INTO test_ne SELECT '2009-01-01', 10.7 FROM generate_series(1,1000);
 
+SET enable_indexscan to false;
+
 EXPLAIN (COSTS OFF) SELECT * FROM test_ne WHERE a <> '2009-01-01' AND b <> 10.7;
 
 SELECT * FROM test_ne WHERE a <> '2009-01-01' AND b <> 10.7;
 
+RESET enable_indexscan;
+
 -- test search for "not equals" using an exclusion constraint
 
 CREATE TABLE zoo (
-- 
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