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-rw-r--r--mysql-test/r/case.result13
1 files changed, 13 insertions, 0 deletions
diff --git a/mysql-test/r/case.result b/mysql-test/r/case.result
index b1e928c5e30..9ceb7efde64 100644
--- a/mysql-test/r/case.result
+++ b/mysql-test/r/case.result
@@ -232,6 +232,19 @@ case t1.f1 when '00:00:00' then 1 end
NULL
drop table t1;
#
+# MDEV-9745 Crash with CASE WHEN TRUE THEN COALESCE(CAST(NULL AS UNSIGNED)) ELSE 4 END
+#
+CREATE TABLE t1 SELECT CASE WHEN TRUE THEN COALESCE(CAST(NULL AS UNSIGNED)) ELSE 4 END AS a;
+DESCRIBE t1;
+Field Type Null Key Default Extra
+a decimal(1,0) YES NULL
+DROP TABLE t1;
+CREATE TABLE t1 SELECT CASE WHEN TRUE THEN COALESCE(CAST(NULL AS UNSIGNED)) ELSE 40 END AS a;
+DESCRIBE t1;
+Field Type Null Key Default Extra
+a decimal(2,0) YES NULL
+DROP TABLE t1;
+#
# Start of 10.1 test
#
#