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Diffstat (limited to 'mysql-test/main/multi_update_tiny_hash.test')
-rw-r--r-- | mysql-test/main/multi_update_tiny_hash.test | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/mysql-test/main/multi_update_tiny_hash.test b/mysql-test/main/multi_update_tiny_hash.test new file mode 100644 index 00000000000..10d469fb076 --- /dev/null +++ b/mysql-test/main/multi_update_tiny_hash.test @@ -0,0 +1,61 @@ +# +# Test of update statement that uses many tables, +# --max_heap_table_size=1 +# + +--disable_warnings +drop table if exists t1, t2; +--enable_warnings + +--echo # +--echo # Bug #36676: multiupdate using LEFT JOIN updates only +--echo # first row or fails with an error: +--echo # ERROR 1022 (23000): Can't write; duplicate key in table '' +--echo # + +--echo + +--echo # +--echo # Multiupdate creates MyISAM temporary table without MEMORY table +--echo # + +CREATE TABLE t1 (ID INT); +CREATE TABLE t2 (ID INT, + s1 TEXT, s2 TEXT, s3 VARCHAR(10), s4 TEXT, s5 VARCHAR(10)); + +INSERT INTO t1 VALUES (1),(2); +INSERT INTO t2 VALUES (1,'test', 'test', 'test', 'test', 'test'), + (2,'test', 'test', 'test', 'test', 'test'); + +SELECT * FROM t1 LEFT JOIN t2 USING(ID); +UPDATE t1 LEFT JOIN t2 USING(ID) SET s1 = 'changed'; +UPDATE t1 JOIN t2 USING(ID) SET s2 = 'changed'; +UPDATE t1 LEFT JOIN t2 USING(ID) SET s3 = 'changed'; +UPDATE t1 LEFT JOIN t2 USING(ID) SET s4 = 'changed', s5 = 'changed'; +SELECT * FROM t1 LEFT JOIN t2 USING(ID); + +DROP TABLE t1, t2; + +--echo # +--echo # Multiupdate creates temporary MyISAM table from MEMORY table +--echo # + +CREATE TABLE t1 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY); +CREATE TABLE t2 (id INT, s1 CHAR(255)); + +# insert [1..64] into table `t1` +INSERT INTO t1 VALUES (0), (0), (0), (0), (0), (0), (0), (0); +INSERT INTO t1 (SELECT 0 FROM t1); +INSERT INTO t1 (SELECT 0 FROM t1); +INSERT INTO t1 (SELECT 0 FROM t1); + +INSERT INTO t2 (SELECT ID, 'a' FROM t1); + +UPDATE t1 LEFT JOIN t2 USING(id) SET s1 = 'b'; + +SELECT DISTINCT s1 FROM t1 LEFT JOIN t2 USING(id); + +DROP TABLE t1, t2; + + +--echo # End of 5.0 tests |