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-rw-r--r--mysql-test/t/func_math.test8
1 files changed, 8 insertions, 0 deletions
diff --git a/mysql-test/t/func_math.test b/mysql-test/t/func_math.test
index 1e7026b0bcb..7f9ed6d8a93 100644
--- a/mysql-test/t/func_math.test
+++ b/mysql-test/t/func_math.test
@@ -472,3 +472,11 @@ SELECT -9223372036854775808 MOD -1;
--echo #
SELECT floor(log10(format(concat_ws(5445796E25, 5306463, 30837), -358821)))
as foo;
+
+--echo #
+--echo # Bug #58137 char(0) column cause:
+--echo # my_gcvt: Assertion `width > 0 && to != ((void *)0)' failed
+--echo #
+CREATE TABLE t1(a char(0));
+INSERT INTO t1 (SELECT -pi());
+DROP TABLE t1;