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# Tests for delete with INNODB
#
# MDEV-22187: SIGSEGV in ha_innobase::cmp_ref on DELETE
#
SET @save_sort_buffer_size= @@sort_buffer_size;
SET sort_buffer_size=1024;
CREATE TABLE t1(c1 CHAR(255) PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES (0), ('a'), ('b');
ANALYZE TABLE t1 PERSISTENT FOR ALL;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT * FROM t1;
c1
0
a
b
EXPLAIN DELETE b FROM t1 AS a JOIN t1 AS b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE a index NULL PRIMARY 255 NULL 3 Using index
1 SIMPLE b ALL NULL NULL NULL NULL 3
DELETE b FROM t1 AS a JOIN t1 AS b;
SELECT * FROM t1;
c1
SET sort_buffer_size=@save_sort_buffer_size;
DROP TABLE t1;
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