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MDEV-25080 Some updates to the MDEV-25080 MTR test cases.
This commit is contained in:
Gagan Goel
@ -2,8 +2,8 @@
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# MDEV-25080: Allow pushdown of queries involving UNIONs
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# in outer select to foreign engines
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#
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# Uncomment the actual SELECTs and add ORDER BY clause
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# after MCOL-5222 is fixed
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# Remove the sorted_result MTR qualifier and add ORDER BY
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# clause after MCOL-5222 is fixed
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#
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CREATE USER IF NOT EXISTS'cejuser'@'localhost' IDENTIFIED BY 'Vagrant1|0000001';
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GRANT ALL PRIVILEGES ON *.* TO 'cejuser'@'localhost';
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@ -20,39 +20,128 @@ INSERT INTO t2 VALUES ('bcd'), ('cde'), ('def'), ('efg');
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INSERT INTO t3 VALUES ('t3_myisam1'), ('t3_myisam2'), ('t3_myisam3');
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INSERT INTO t4 VALUES ('t4_myisam1'), ('t4_myisam2'), ('t4_myisam3');
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# Pushdown of the whole UNION
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SELECT * FROM t1 UNION SELECT * FROM t2;
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a
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abc
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bcd
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cde
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def
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efg
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EXPLAIN SELECT * FROM t1 UNION SELECT * FROM t2;
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id select_type table type possible_keys key key_len ref rows Extra
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NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
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SELECT * FROM t1 UNION ALL SELECT * FROM t2;
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a
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abc
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bcd
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bcd
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cde
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cde
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def
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efg
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EXPLAIN SELECT * FROM t1 UNION ALL SELECT * FROM t2;
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id select_type table type possible_keys key key_len ref rows Extra
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NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
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# UNION with a foreign engine
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SELECT * FROM t1 UNION SELECT * FROM t3;
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a
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abc
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bcd
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cde
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t3_myisam1
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t3_myisam2
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t3_myisam3
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EXPLAIN SELECT * FROM t1 UNION SELECT * FROM t3;
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id select_type table type possible_keys key key_len ref rows Extra
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NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
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# More than two SELECTs in a UNIT:
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SELECT * FROM t1 UNION
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SELECT * FROM t2 UNION ALL
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SELECT * FROM t1;
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a
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abc
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abc
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bcd
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bcd
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cde
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cde
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def
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efg
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EXPLAIN SELECT * FROM t1 UNION
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SELECT * FROM t2 UNION ALL
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SELECT * FROM t1;
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id select_type table type possible_keys key key_len ref rows Extra
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NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
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(SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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SELECT * FROM t1;
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a
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abc
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abc
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bcd
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bcd
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cde
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cde
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def
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efg
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EXPLAIN (SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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SELECT * FROM t1;
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id select_type table type possible_keys key key_len ref rows Extra
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NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
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SELECT * FROM t1 UNION
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SELECT * FROM t2 UNION ALL
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SELECT * FROM t3 UNION
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SELECT * FROM t4;
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a
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abc
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bcd
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cde
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def
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efg
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t3_myisam1
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t3_myisam2
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t3_myisam3
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t4_myisam1
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t4_myisam2
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t4_myisam3
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EXPLAIN SELECT * FROM t1 UNION
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SELECT * FROM t2 UNION ALL
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SELECT * FROM t3 UNION
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SELECT * FROM t4;
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id select_type table type possible_keys key key_len ref rows Extra
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NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
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(SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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(SELECT * FROM t3 UNION
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SELECT * FROM t4);
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a
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abc
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bcd
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cde
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def
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efg
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t3_myisam1
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t3_myisam2
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t3_myisam3
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t4_myisam1
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t4_myisam2
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t4_myisam3
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EXPLAIN (SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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(SELECT * FROM t3 UNION
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SELECT * FROM t4);
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id select_type table type possible_keys key key_len ref rows Extra
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NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
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SELECT count(*) FROM t1 UNION
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SELECT count(*) FROM t2 UNION ALL
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SELECT count(*)+20 FROM t2 UNION
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SELECT count(*)+5 FROM t1;
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count(*)
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24
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3
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4
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8
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EXPLAIN
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SELECT count(*) FROM t1 UNION
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SELECT count(*) FROM t2 UNION ALL
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@ -91,6 +180,29 @@ SELECT a FROM
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id select_type table type possible_keys key key_len ref rows Extra
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1 PUSHED SELECT NULL NULL NULL NULL NULL NULL NULL NULL
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# Prepared statements
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PREPARE stmt FROM "SELECT * FROM t1 UNION
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SELECT * FROM t2";
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EXECUTE stmt;
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a
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abc
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bcd
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cde
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def
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efg
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EXECUTE stmt;
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a
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abc
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bcd
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cde
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def
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efg
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EXECUTE stmt;
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a
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abc
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bcd
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cde
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def
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efg
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PREPARE stmt FROM "EXPLAIN SELECT * FROM t1 UNION
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SELECT * FROM t2";
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EXECUTE stmt;
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@ -99,6 +211,46 @@ NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
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EXECUTE stmt;
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id select_type table type possible_keys key key_len ref rows Extra
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NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
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PREPARE stmt FROM "(SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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(SELECT * FROM t1 UNION
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SELECT * FROM t2)";
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EXECUTE stmt;
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a
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abc
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abc
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bcd
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bcd
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cde
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cde
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def
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def
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efg
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efg
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EXECUTE stmt;
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a
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abc
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abc
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bcd
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bcd
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cde
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cde
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def
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def
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efg
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efg
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EXECUTE stmt;
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a
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abc
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abc
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bcd
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bcd
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cde
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cde
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def
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def
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efg
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efg
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PREPARE stmt FROM "EXPLAIN (SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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(SELECT * FROM t1 UNION
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@ -2,12 +2,18 @@
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--echo # MDEV-25080: Allow pushdown of queries involving UNIONs
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--echo # in outer select to foreign engines
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--echo #
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--echo # Uncomment the actual SELECTs and add ORDER BY clause
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--echo # after MCOL-5222 is fixed
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--echo # Remove the sorted_result MTR qualifier and add ORDER BY
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--echo # clause after MCOL-5222 is fixed
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--echo #
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--source ../include/have_columnstore.inc
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if (!$MASTER_MYPORT)
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{
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# Running with --extern
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let $MASTER_MYPORT=`SELECT @@port`;
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}
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#
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# Enable cross engine join
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# Configure user and password in Columnstore.xml file
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@ -45,57 +51,65 @@ INSERT INTO t3 VALUES ('t3_myisam1'), ('t3_myisam2'), ('t3_myisam3');
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INSERT INTO t4 VALUES ('t4_myisam1'), ('t4_myisam2'), ('t4_myisam3');
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--echo # Pushdown of the whole UNION
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#SELECT * FROM t1 UNION SELECT * FROM t2;
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--sorted_result
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SELECT * FROM t1 UNION SELECT * FROM t2;
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EXPLAIN SELECT * FROM t1 UNION SELECT * FROM t2;
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#SELECT * FROM t1 UNION ALL SELECT * FROM t2;
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--sorted_result
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SELECT * FROM t1 UNION ALL SELECT * FROM t2;
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EXPLAIN SELECT * FROM t1 UNION ALL SELECT * FROM t2;
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--echo # UNION with a foreign engine
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#SELECT * FROM t1 UNION SELECT * FROM t3;
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--sorted_result
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SELECT * FROM t1 UNION SELECT * FROM t3;
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EXPLAIN SELECT * FROM t1 UNION SELECT * FROM t3;
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--echo # More than two SELECTs in a UNIT:
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#SELECT * FROM t1 UNION
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# SELECT * FROM t2 UNION ALL
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# SELECT * FROM t1;
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--sorted_result
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SELECT * FROM t1 UNION
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SELECT * FROM t2 UNION ALL
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SELECT * FROM t1;
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EXPLAIN SELECT * FROM t1 UNION
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SELECT * FROM t2 UNION ALL
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SELECT * FROM t1;
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#(SELECT * FROM t1 UNION
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# SELECT * FROM t2) UNION ALL
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# SELECT * FROM t1;
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--sorted_result
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(SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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SELECT * FROM t1;
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EXPLAIN (SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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SELECT * FROM t1;
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#SELECT * FROM t1 UNION
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# SELECT * FROM t2 UNION ALL
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# SELECT * FROM t3 UNION
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# SELECT * FROM t4;
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--sorted_result
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SELECT * FROM t1 UNION
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SELECT * FROM t2 UNION ALL
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SELECT * FROM t3 UNION
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SELECT * FROM t4;
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EXPLAIN SELECT * FROM t1 UNION
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SELECT * FROM t2 UNION ALL
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SELECT * FROM t3 UNION
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SELECT * FROM t4;
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#(SELECT * FROM t1 UNION
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# SELECT * FROM t2) UNION ALL
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# (SELECT * FROM t3 UNION
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# SELECT * FROM t4);
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--sorted_result
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(SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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(SELECT * FROM t3 UNION
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SELECT * FROM t4);
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EXPLAIN (SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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(SELECT * FROM t3 UNION
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SELECT * FROM t4);
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#SELECT count(*) FROM t1 UNION
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# SELECT count(*) FROM t2 UNION ALL
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# SELECT count(*)+20 FROM t2 UNION
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# SELECT count(*)+5 FROM t1;
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--sorted_result
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SELECT count(*) FROM t1 UNION
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SELECT count(*) FROM t2 UNION ALL
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SELECT count(*)+20 FROM t2 UNION
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SELECT count(*)+5 FROM t1;
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EXPLAIN
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SELECT count(*) FROM t1 UNION
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@ -119,12 +133,15 @@ EXPLAIN
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(SELECT a FROM t1 UNION ALL SELECT a FROM t3) q ORDER BY a;
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--echo # Prepared statements
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#PREPARE stmt FROM "SELECT * FROM t1 UNION
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# SELECT * FROM t2";
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PREPARE stmt FROM "SELECT * FROM t1 UNION
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SELECT * FROM t2";
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#EXECUTE stmt;
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#EXECUTE stmt;
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#EXECUTE stmt;
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--sorted_result
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EXECUTE stmt;
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--sorted_result
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EXECUTE stmt;
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--sorted_result
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EXECUTE stmt;
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PREPARE stmt FROM "EXPLAIN SELECT * FROM t1 UNION
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SELECT * FROM t2";
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@ -132,14 +149,17 @@ PREPARE stmt FROM "EXPLAIN SELECT * FROM t1 UNION
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EXECUTE stmt;
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EXECUTE stmt;
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#PREPARE stmt FROM "(SELECT * FROM t1 UNION
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# SELECT * FROM t2) UNION ALL
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# (SELECT * FROM t1 UNION
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# SELECT * FROM t2)";
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PREPARE stmt FROM "(SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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(SELECT * FROM t1 UNION
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SELECT * FROM t2)";
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#EXECUTE stmt;
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#EXECUTE stmt;
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#EXECUTE stmt;
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--sorted_result
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EXECUTE stmt;
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--sorted_result
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EXECUTE stmt;
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--sorted_result
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EXECUTE stmt;
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PREPARE stmt FROM "EXPLAIN (SELECT * FROM t1 UNION
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SELECT * FROM t2) UNION ALL
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