From c73b987e73343d49c0b98666552d7aeb1a9799da Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Tue, 14 Jun 2016 13:18:05 +0200
Subject: MDEV-8328 Evaluation of two "!" operators depends on space in
 beetween

fix the lexer to backtrack when parsing
"<=", "<>", "!=", ">=", "<<", ">>", "<=>".
---
 mysql-test/t/parser.test | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'mysql-test/t/parser.test')

diff --git a/mysql-test/t/parser.test b/mysql-test/t/parser.test
index 6899e2876a6..c6aa8927848 100644
--- a/mysql-test/t/parser.test
+++ b/mysql-test/t/parser.test
@@ -758,3 +758,15 @@ CREATE TABLE t1 (s VARCHAR(100));
 CREATE TRIGGER trigger1 BEFORE INSERT ON t1 FOR EACH ROW
 SET default_storage_engine = NEW.INNODB;
 DROP TABLE t1;
+
+#
+# MDEV-8328 Evaluation of two "!" operators depends on space in beetween
+#
+--error ER_PARSE_ERROR
+select 0==0;
+select 1=!0,  1 = ! 0;
+select !!0,     ! ! 0;
+select 2>!0,  2 > ! 0;
+select 0<=!0, 0 <= !0;
+select 1<<!0, 1 << !0;
+select 0<!0,  0 < ! 0;
-- 
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