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-rw-r--r--mysql-test/suite/innodb_fts/t/innodb-fts-ddl.test10
1 files changed, 10 insertions, 0 deletions
diff --git a/mysql-test/suite/innodb_fts/t/innodb-fts-ddl.test b/mysql-test/suite/innodb_fts/t/innodb-fts-ddl.test
index ddd92556772..c81ec18a4e6 100644
--- a/mysql-test/suite/innodb_fts/t/innodb-fts-ddl.test
+++ b/mysql-test/suite/innodb_fts/t/innodb-fts-ddl.test
@@ -276,3 +276,13 @@ ALTER TABLE t1 ADD FULLTEXT KEY(a), ADD COLUMN b VARCHAR(3), ADD FULLTEXT KEY(b)
# Cleanup
DROP TABLE t1;
+
+--echo #
+--echo # MDEV-18152 Assertion 'num_fts_index <= 1' failed
+--echo # in prepare_inplace_alter_table_dict
+--echo #
+CREATE TABLE t1
+(a VARCHAR(128), b VARCHAR(128), FULLTEXT INDEX(a), FULLTEXT INDEX(b))
+ENGINE=InnoDB;
+ALTER TABLE t1 ADD c SERIAL;
+DROP TABLE t1;