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-rw-r--r--mysql-test/suite/innodb_fts/t/misc_debug.test13
1 files changed, 13 insertions, 0 deletions
diff --git a/mysql-test/suite/innodb_fts/t/misc_debug.test b/mysql-test/suite/innodb_fts/t/misc_debug.test
index 4b32afb848c..aaf628abe6d 100644
--- a/mysql-test/suite/innodb_fts/t/misc_debug.test
+++ b/mysql-test/suite/innodb_fts/t/misc_debug.test
@@ -39,3 +39,16 @@ ALTER TABLE t ADD FULLTEXT INDEX (b(64));
SET SESSION debug_dbug=@saved_debug_dbug;
DROP TABLE t;
+
+# MDEV-21550 Assertion `!table->fts->in_queue' failed in
+# fts_optimize_remove_table
+CREATE TABLE t1 (pk INT, a VARCHAR(8), PRIMARY KEY(pk),
+ FULLTEXT KEY(a)) ENGINE=InnoDB;
+CREATE TABLE t2 (b INT, FOREIGN KEY(b) REFERENCES t1(pk)) ENGINE=InnoDB;
+--error ER_ROW_IS_REFERENCED_2
+DROP TABLE t1;
+SET DEBUG_DBUG="+d,fts_instrument_sync";
+INSERT INTO t1 VALUES(1, "mariadb");
+ALTER TABLE t1 FORCE;
+# Cleanup
+DROP TABLE t2, t1;