diff --git a/mysql-test/r/blackhole.result b/mysql-test/r/blackhole.result index 140d7e73d48..0ee5f326e0f 100644 --- a/mysql-test/r/blackhole.result +++ b/mysql-test/r/blackhole.result @@ -123,3 +123,14 @@ master-bin.000001 # Query 1 # use `test`; create table t3 like t1 master-bin.000001 # Query 1 # use `test`; insert into t1 select * from t3 master-bin.000001 # Query 1 # use `test`; replace into t1 select * from t3 drop table t1,t2,t3; +CREATE TABLE t1(a INT, b INT) ENGINE=BLACKHOLE; +DELETE FROM t1 WHERE a=10; +ALTER TABLE t1 ADD INDEX(a); +DELETE FROM t1 WHERE a=10; +ALTER TABLE t1 DROP INDEX a; +ALTER TABLE t1 ADD UNIQUE INDEX(a); +DELETE FROM t1 WHERE a=10; +ALTER TABLE t1 DROP INDEX a; +ALTER TABLE t1 ADD PRIMARY KEY(a); +DELETE FROM t1 WHERE a=10; +DROP TABLE t1; diff --git a/mysql-test/t/blackhole.test b/mysql-test/t/blackhole.test index e40b84eb5cd..4bafad2d777 100644 --- a/mysql-test/t/blackhole.test +++ b/mysql-test/t/blackhole.test @@ -127,4 +127,19 @@ show binlog events; drop table t1,t2,t3; +# +#Bug#19717: DELETE Query Error on BLACKHOLE when using WHERE on column with UNIQUE INDEX +# +CREATE TABLE t1(a INT, b INT) ENGINE=BLACKHOLE; +DELETE FROM t1 WHERE a=10; +ALTER TABLE t1 ADD INDEX(a); +DELETE FROM t1 WHERE a=10; +ALTER TABLE t1 DROP INDEX a; +ALTER TABLE t1 ADD UNIQUE INDEX(a); +DELETE FROM t1 WHERE a=10; +ALTER TABLE t1 DROP INDEX a; +ALTER TABLE t1 ADD PRIMARY KEY(a); +DELETE FROM t1 WHERE a=10; +DROP TABLE t1; + # End of 4.1 tests diff --git a/sql/ha_blackhole.cc b/sql/ha_blackhole.cc index 61a8658be53..3f4285ec595 100644 --- a/sql/ha_blackhole.cc +++ b/sql/ha_blackhole.cc @@ -180,7 +180,7 @@ int ha_blackhole::index_read(byte * buf, const byte * key, uint key_len, enum ha_rkey_function find_flag) { DBUG_ENTER("ha_blackhole::index_read"); - DBUG_RETURN(0); + DBUG_RETURN(HA_ERR_END_OF_FILE); }