From 90a391c645774c2606ae4b82f4a07130afdd0a42 Mon Sep 17 00:00:00 2001
From: Robert Haas
Date: Tue, 3 Aug 2010 19:53:20 +0000
Subject: Regression tests for new btree_gist "not equals" support.

Jeff Davis, with minor adjustments by me.
---
 contrib/btree_gist/sql/not_equal.sql | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 contrib/btree_gist/sql/not_equal.sql

(limited to 'contrib/btree_gist/sql')

diff --git a/contrib/btree_gist/sql/not_equal.sql b/contrib/btree_gist/sql/not_equal.sql
new file mode 100644
index 00000000000..b1940ef4fe7
--- /dev/null
+++ b/contrib/btree_gist/sql/not_equal.sql
@@ -0,0 +1,32 @@
+
+SET enable_seqscan to false;
+
+-- test search for "not equals"
+
+CREATE TABLE test_ne (
+   a  TIMESTAMP,
+   b  NUMERIC
+);
+CREATE INDEX test_ne_idx ON test_ne USING gist (a, b);
+
+INSERT INTO test_ne SELECT '2009-01-01', 10.7 FROM generate_series(1,1000);
+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);
+
+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;
+
+-- test search for "not equals" using an exclusion constraint
+
+CREATE TABLE zoo (
+   cage   INTEGER,
+   animal TEXT,
+   EXCLUDE USING gist (cage WITH =, animal WITH <>)
+);
+
+INSERT INTO zoo VALUES(123, 'zebra');
+INSERT INTO zoo VALUES(123, 'zebra');
+INSERT INTO zoo VALUES(123, 'lion');
+INSERT INTO zoo VALUES(124, 'lion');
-- 
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