database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-08-01 06:46:55 +03:00
Code Activity

MDEV-25080 Some updates to the MDEV-25080 MTR test cases.

Browse Source
This commit is contained in:
Gagan Goel
2023-02-17 13:03:49 -05:00
parent 86dcf92d56
commit e987a766e0
2 changed files with 209 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

156
mysql-test/columnstore/basic/r/mdev-25080.result
View File

@ -2,8 +2,8 @@
# MDEV-25080: Allow pushdown of queries involving UNIONs
# in outer select to foreign engines
#
# Uncomment the actual SELECTs and add ORDER BY clause
# after MCOL-5222 is fixed
# Remove the sorted_result MTR qualifier and add ORDER BY
# clause after MCOL-5222 is fixed
#
CREATE USER IF NOT EXISTS'cejuser'@'localhost' IDENTIFIED BY 'Vagrant1|0000001';
GRANT ALL PRIVILEGES ON *.* TO 'cejuser'@'localhost';
@ -20,39 +20,128 @@ INSERT INTO t2 VALUES ('bcd'), ('cde'), ('def'), ('efg');
INSERT INTO t3 VALUES ('t3_myisam1'), ('t3_myisam2'), ('t3_myisam3');
INSERT INTO t4 VALUES ('t4_myisam1'), ('t4_myisam2'), ('t4_myisam3');
# Pushdown of the whole UNION
SELECT * FROM t1 UNION SELECT * FROM t2;
a
abc
bcd
cde
def
efg
EXPLAIN SELECT * FROM t1 UNION SELECT * FROM t2;
id select_type table type possible_keys key key_len ref rows Extra
NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
SELECT * FROM t1 UNION ALL SELECT * FROM t2;
a
abc
bcd
bcd
cde
cde
def
efg
EXPLAIN SELECT * FROM t1 UNION ALL SELECT * FROM t2;
id select_type table type possible_keys key key_len ref rows Extra
NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
# UNION with a foreign engine
SELECT * FROM t1 UNION SELECT * FROM t3;
a
abc
bcd
cde
t3_myisam1
t3_myisam2
t3_myisam3
EXPLAIN SELECT * FROM t1 UNION SELECT * FROM t3;
id select_type table type possible_keys key key_len ref rows Extra
NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
# More than two SELECTs in a UNIT:
SELECT * FROM t1 UNION
SELECT * FROM t2 UNION ALL
SELECT * FROM t1;
a
abc
abc
bcd
bcd
cde
cde
def
efg
EXPLAIN SELECT * FROM t1 UNION
SELECT * FROM t2 UNION ALL
SELECT * FROM t1;
id select_type table type possible_keys key key_len ref rows Extra
NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
(SELECT * FROM t1 UNION
SELECT * FROM t2) UNION ALL
SELECT * FROM t1;
a
abc
abc
bcd
bcd
cde
cde
def
efg
EXPLAIN (SELECT * FROM t1 UNION
SELECT * FROM t2) UNION ALL
SELECT * FROM t1;
id select_type table type possible_keys key key_len ref rows Extra
NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
SELECT * FROM t1 UNION
SELECT * FROM t2 UNION ALL
SELECT * FROM t3 UNION
SELECT * FROM t4;
a
abc
bcd
cde
def
efg
t3_myisam1
t3_myisam2
t3_myisam3
t4_myisam1
t4_myisam2
t4_myisam3
EXPLAIN SELECT * FROM t1 UNION
SELECT * FROM t2 UNION ALL
SELECT * FROM t3 UNION
SELECT * FROM t4;
id select_type table type possible_keys key key_len ref rows Extra
NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
(SELECT * FROM t1 UNION
SELECT * FROM t2) UNION ALL
(SELECT * FROM t3 UNION
SELECT * FROM t4);
a
abc
bcd
cde
def
efg
t3_myisam1
t3_myisam2
t3_myisam3
t4_myisam1
t4_myisam2
t4_myisam3
EXPLAIN (SELECT * FROM t1 UNION
SELECT * FROM t2) UNION ALL
(SELECT * FROM t3 UNION
SELECT * FROM t4);
id select_type table type possible_keys key key_len ref rows Extra
NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
SELECT count(*) FROM t1 UNION
SELECT count(*) FROM t2 UNION ALL
SELECT count(*)+20 FROM t2 UNION
SELECT count(*)+5 FROM t1;
count(*)
24
3
4
8
EXPLAIN
SELECT count(*) FROM t1 UNION
SELECT count(*) FROM t2 UNION ALL
@ -91,6 +180,29 @@ SELECT a FROM
id select_type table type possible_keys key key_len ref rows Extra
1 PUSHED SELECT NULL NULL NULL NULL NULL NULL NULL NULL
# Prepared statements
PREPARE stmt FROM "SELECT * FROM t1 UNION
SELECT * FROM t2";
EXECUTE stmt;
a
abc
bcd
cde
def
efg
EXECUTE stmt;
a
abc
bcd
cde
def
efg
EXECUTE stmt;
a
abc
bcd
cde
def
efg
PREPARE stmt FROM "EXPLAIN SELECT * FROM t1 UNION
SELECT * FROM t2";
EXECUTE stmt;
@ -99,6 +211,46 @@ NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
NULL PUSHED UNION NULL NULL NULL NULL NULL NULL NULL NULL
PREPARE stmt FROM "(SELECT * FROM t1 UNION
SELECT * FROM t2) UNION ALL
(SELECT * FROM t1 UNION
SELECT * FROM t2)";
EXECUTE stmt;
a
abc
abc
bcd
bcd
cde
cde
def
def
efg
efg
EXECUTE stmt;
a
abc
abc
bcd
bcd
cde
cde
def
def
efg
efg
EXECUTE stmt;
a
abc
abc
bcd
bcd
cde
cde
def
def
efg
efg
PREPARE stmt FROM "EXPLAIN (SELECT * FROM t1 UNION
SELECT * FROM t2) UNION ALL
(SELECT * FROM t1 UNION