MDEV-19252 Problem with DBUG_ASSERT_AS_PRINTF and marked_for_write()

Problem was that DBUG_FIX_WRITE_SET was not enabled when using
DBUG_ASSERT_AS_PRINTF

2 files changed, 16 insertions, 0 deletions

diff --git a/mysql-test/main/unique.result b/mysql-test/main/unique.result
new file mode 100644
index 00000000000..fbd937f0434
--- /dev/null
+++ b/mysql-test/main/unique.result
@@ -0,0 +1,4 @@
+CREATE TABLE t2 (n BLOB, UNIQUE(n));
+INSERT INTO t2 VALUES (1);
+DELETE FROM t2 WHERE n = 1;
+DROP TABLE t2;
diff --git a/mysql-test/main/unique.test b/mysql-test/main/unique.test
new file mode 100644
index 00000000000..549336bfcd1
--- /dev/null
+++ b/mysql-test/main/unique.test
@@ -0,0 +1,12 @@
+--source include/have_innodb.inc
+
+#
+# MDEV-19252 Warning about assertion failure marked_for_write_or_computed()
+# printed by release build with DBUG_ASSERT_AS_PRINTF, but no failure on debug
+# build
+#
+
+CREATE TABLE t2 (n BLOB, UNIQUE(n));
+INSERT INTO t2 VALUES (1);
+DELETE FROM t2 WHERE n = 1;
+DROP TABLE t2;