Commit 50741037 authored by Igor Babaev's avatar Igor Babaev

Fixed a wrong merge in prune_partitions()

Added forgotten partition_explicit_prune from mysql-5.6.

Backported the fix for
Bug#13559657: PARTITION SELECTION DOES NOT WORK WITH VIEWS
from mysql-5.6
parent 159866b6
#
# Bug#13559657: PARTITION SELECTION DOES NOT WORK WITH VIEWS
#
CREATE TABLE t1 (a int)
ENGINE = InnoDB
PARTITION BY HASH (a) PARTITIONS 2;
INSERT INTO t1 VALUES (0), (1), (2), (3);
CREATE VIEW v1 AS SELECT a FROM t1 PARTITION (p0);
SHOW CREATE VIEW v1;
View Create View character_set_client collation_connection
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`a` AS `a` from `t1` PARTITION (`p0`) latin1 latin1_swedish_ci
FLUSH STATUS;
SELECT * FROM v1;
a
0
2
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_RND_NEXT 3
HANDLER_TMP_WRITE 22
# 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
SELECT a FROM t1 PARTITION (p0);
a
0
2
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_RND_NEXT 3
HANDLER_TMP_WRITE 22
# 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
INSERT INTO v1 VALUES (10);
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
HANDLER_WRITE 2
# 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_TMP_WRITE 22
# 2 locks (1 table, all partitions pruned)
FLUSH STATUS;
SELECT * FROM v1;
a
0
10
2
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_RND_NEXT 4
HANDLER_TMP_WRITE 22
# 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
SELECT a FROM t1 PARTITION (p0);
a
0
10
2
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_RND_NEXT 4
HANDLER_TMP_WRITE 22
# 4 locks (1 table, 1 partition lock/unlock)
SELECT * FROM t1;
a
0
1
10
2
3
DROP VIEW v1;
CREATE VIEW v1 AS SELECT a FROM t1 PARTITION (p0) WITH CHECK OPTION;
FLUSH STATUS;
INSERT INTO v1 VALUES (20);
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
HANDLER_WRITE 2
# 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_TMP_WRITE 22
# 2 locks (1 table, all partitions pruned)
SELECT * FROM v1;
a
0
10
2
20
SELECT * FROM t1;
a
0
1
10
2
20
3
DROP VIEW v1;
CREATE VIEW v1 AS
SELECT a FROM t1 PARTITION (p0) WHERE a = 30 WITH CHECK OPTION;
FLUSH STATUS;
INSERT INTO v1 VALUES (30);
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
HANDLER_WRITE 2
# 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
INSERT INTO v1 VALUES (31);
ERROR HY000: CHECK OPTION failed 'test.v1'
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 22
# 2 locks (1 table, all partitions pruned)
FLUSH STATUS;
INSERT INTO v1 VALUES (32);
ERROR HY000: CHECK OPTION failed 'test.v1'
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 22
# 4 locks (1 table, 1 partition lock/unlock)
SELECT * FROM v1;
a
30
SELECT * FROM t1;
a
0
1
10
2
20
3
30
DROP VIEW v1;
DROP TABLE t1;
# Original tests for WL#5217
# Must have InnoDB as engine to get the same statistics results.
# embedded uses MyISAM as default. CREATE SELECT uses the default engine.
SET @old_default_storage_engine = @@default_storage_engine;
SET @@default_storage_engine = 'InnoDB';
# Test to show if I_S affects HANDLER_ counts
FLUSH STATUS;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_TMP_WRITE 22
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_READ_RND_NEXT 26
HANDLER_TMP_WRITE 47
# OK, seems to add number of variables processed before HANDLER_WRITE
# and number of variables + 1 evaluated in the previous call in RND_NEXT
CREATE TABLE t1
(a INT NOT NULL,
b varchar (64),
INDEX (b,a),
PRIMARY KEY (a))
ENGINE = InnoDB
PARTITION BY RANGE (a)
SUBPARTITION BY HASH (a) SUBPARTITIONS 2
(PARTITION pNeg VALUES LESS THAN (0)
(SUBPARTITION subp0,
SUBPARTITION subp1),
PARTITION `p0-9` VALUES LESS THAN (10)
(SUBPARTITION subp2,
SUBPARTITION subp3),
PARTITION `p10-99` VALUES LESS THAN (100)
(SUBPARTITION subp4,
SUBPARTITION subp5),
PARTITION `p100-99999` VALUES LESS THAN (100000)
(SUBPARTITION subp6,
SUBPARTITION subp7));
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` varchar(64) DEFAULT NULL,
PRIMARY KEY (`a`),
KEY `b` (`b`,`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY RANGE (a)
SUBPARTITION BY HASH (a)
(PARTITION pNeg VALUES LESS THAN (0)
(SUBPARTITION subp0 ENGINE = InnoDB,
SUBPARTITION subp1 ENGINE = InnoDB),
PARTITION `p0-9` VALUES LESS THAN (10)
(SUBPARTITION subp2 ENGINE = InnoDB,
SUBPARTITION subp3 ENGINE = InnoDB),
PARTITION `p10-99` VALUES LESS THAN (100)
(SUBPARTITION subp4 ENGINE = InnoDB,
SUBPARTITION subp5 ENGINE = InnoDB),
PARTITION `p100-99999` VALUES LESS THAN (100000)
(SUBPARTITION subp6 ENGINE = InnoDB,
SUBPARTITION subp7 ENGINE = InnoDB)) */
# First test that the syntax is OK
SHOW CREATE TABLE t1 PARTITION (subp0);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PARTITION (subp0)' at line 1
# Not a correct partition list
INSERT INTO t1 PARTITION () VALUES (1, "error");
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ') VALUES (1, "error")' at line 1
INSERT INTO t1 PARTITION (pNonExisting) VALUES (1, "error");
ERROR HY000: Unknown partition 'pNonExisting' in table 't1'
INSERT INTO t1 PARTITION (pNeg, pNonExisting) VALUES (1, "error");
ERROR HY000: Unknown partition 'pNonExisting' in table 't1'
# Duplicate partitions and overlapping partitions and subpartitios is OK
FLUSH STATUS;
INSERT INTO t1 PARTITION (pNeg, pNeg) VALUES (-1, "pNeg(-subp1)");
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
HANDLER_WRITE 2
# Should be 1 commit
# 4 external locks (due to pruning of locks)
# (1 ha_partition + 1 ha_innobase) x 2 (lock + unlock)
# and 18 write (1 ha_innobase + 17 internal I_S write)
INSERT INTO t1 PARTITION (pNeg, subp0) VALUES (-3, "pNeg(-subp1)");
INSERT INTO t1 PARTITION (pNeg, subp0) VALUES (-2, "(pNeg-)subp0");
# should be correct
INSERT INTO t1 PARTITION (`p100-99999`) VALUES (100, "`p100-99999`(-subp6)"), (101, "`p100-99999`(-subp7)"), (1000, "`p100-99999`(-subp6)");
INSERT INTO t1 PARTITION(`p10-99`,subp3) VALUES (1, "subp3"), (10, "p10-99");
FLUSH STATUS;
INSERT INTO t1 PARTITION(subp3) VALUES (3, "subp3");
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
HANDLER_WRITE 2
# Should be 1 commit
# 4 external locks
# (1 ha_partition + 1 ha_innobase) x 2 (lock + unlock)
# and 18 write (1 ha_innobase + 17 internal I_S write)
FLUSH STATUS;
LOCK TABLE t1 WRITE;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# should be 1 commit
# 9 locks (1 ha_partition + 8 ha_innobase)
# 17 writes (internal I_S)
INSERT INTO t1 PARTITION(`p0-9`) VALUES (5, "p0-9:subp3");
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 2
HANDLER_READ_RND_NEXT 26
HANDLER_TMP_WRITE 47
HANDLER_WRITE 2
# + 1 commit
# + 19 rnd next (internal I_S)
# + 19 write (18 internal I_S + 1 insert)
UNLOCK TABLES;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 2
HANDLER_READ_RND_NEXT 52
HANDLER_TMP_WRITE 72
HANDLER_WRITE 2
# + 9 locks (unlocks)
# + 19 rnd next (internal I_S)
# + 18 write (internal I_S)
# Not matching partitions with inserted value
INSERT INTO t1 PARTITION (pNeg, pNeg) VALUES (1, "error");
ERROR HY000: Found a row not matching the given partition set
INSERT INTO t1 PARTITION (pNeg, subp0) VALUES (1, "error");
ERROR HY000: Found a row not matching the given partition set
INSERT INTO t1 PARTITION (`p100-99999`) VALUES (1, "error"), (10, "error");
ERROR HY000: Found a row not matching the given partition set
INSERT INTO t1 VALUES (1000000, "error"), (9999999, "error");
ERROR HY000: Table has no partition for value 1000000
INSERT INTO t1 PARTITION (`p100-99999`) VALUES (1000000, "error"), (9999999, "error");
ERROR HY000: Table has no partition for value 1000000
INSERT INTO t1 PARTITION (pNeg, subp4) VALUES (-7, "pNeg(-subp1)"), (-10, "pNeg(-subp0)"), (-1, "pNeg(-subp1)"), (-99, "pNeg(-subp1)");
Got one of the listed errors
SELECT * FROM t1 ORDER BY a;
a b
-3 pNeg(-subp1)
-2 (pNeg-)subp0
-1 pNeg(-subp1)
1 subp3
3 subp3
5 p0-9:subp3
10 p10-99
100 `p100-99999`(-subp6)
101 `p100-99999`(-subp7)
1000 `p100-99999`(-subp6)
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status OK
SET @save_innodb_stats_on_metadata=@@global.innodb_stats_on_metadata;
SET @@global.innodb_stats_on_metadata=ON;
SELECT PARTITION_NAME, SUBPARTITION_NAME, TABLE_ROWS
FROM INFORMATION_SCHEMA.PARTITIONS
WHERE TABLE_SCHEMA = 'test'
AND TABLE_NAME = 't1' ORDER BY SUBPARTITION_NAME;
PARTITION_NAME SUBPARTITION_NAME TABLE_ROWS
pNeg subp0 1
pNeg subp1 2
p0-9 subp2 0
p0-9 subp3 3
p10-99 subp4 1
p10-99 subp5 0
p100-99999 subp6 2
p100-99999 subp7 1
SET @@global.innodb_stats_on_metadata=@save_innodb_stats_on_metadata;
FLUSH STATUS;
SELECT * FROM t1 PARTITION (pNonexistent);
ERROR HY000: Unknown partition 'pNonexistent' in table 't1'
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_TMP_WRITE 22
# should have failed before locking (only 17 internal I_S writes)
FLUSH STATUS;
SELECT * FROM t1 PARTITION (subp2);
a b
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_FIRST 1
HANDLER_TMP_WRITE 22
# Should be 1 commit
# 4 locks (1 ha_partition + 1 ha_innobase) x 2 (lock/unlock)
# 1 read first (also calls index_read)
# 2 read key (first from innobase_get_index and second from index first)
# 17 writes (internal I_S)
FLUSH STATUS;
SELECT * FROM t1 PARTITION (subp2,pNeg) AS TableAlias;
a b
-2 (pNeg-)subp0
-3 pNeg(-subp1)
-1 pNeg(-subp1)
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_FIRST 3
HANDLER_READ_NEXT 3
HANDLER_TMP_WRITE 22
# Should be 1 commit
# 8 locks (1 ha_partition + 2 + 1 ha_innobase) x 2
# 3 read first (one for each partition)
# 6 read key (3 from read first and 3 from innobase_get_index)
# 3 read next (one next call after each read row)
# 17 writes (internal I_S)
FLUSH STATUS;
LOCK TABLE t1 READ, t1 as TableAlias READ;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# 1 commit
# 18 locks
# 18 READ KEY from opening a new partition table instance,
# (1 innobase_get_index for each index, per partition, 1 x 2 x 8 = 16
# + info(HA_STATUS_CONST) call on the partition with the most number
# of rows, 2 innobase_get_index for updating both index statistics)
# 17 writes (internal I_S)
SELECT * FROM t1 PARTITION (subp3) AS TableAlias;
a b
5 p0-9:subp3
1 subp3
3 subp3
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 2
HANDLER_READ_FIRST 1
HANDLER_READ_NEXT 3
HANDLER_READ_RND_NEXT 26
HANDLER_TMP_WRITE 47
# + 1 commit
# + 1 read first (read first key from index in one partition)
# + 2 read key (innobase_get_index from index_init + from index_first)
# + 3 read next (one after each row)
# + 19 rnd next (from the last I_S query)
# + 18 write (internal I_S)
SELECT COUNT(*) FROM t1 PARTITION (`p10-99`);
COUNT(*)
1
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 3
HANDLER_READ_FIRST 3
HANDLER_READ_NEXT 4
HANDLER_READ_RND_NEXT 52
HANDLER_TMP_WRITE 72
# + 1 commit
# + 2 read first (one for each subpart)
# + 4 read key (innobase_get_index from index_init + from index_first)
# + 1 read next (one after each row)
# + 19 rnd next (from the last I_S query)
# + 18 write (internal I_S)
SELECT * FROM t1 WHERE a = 1000000;
a b
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 4
HANDLER_READ_FIRST 3
HANDLER_READ_NEXT 4
HANDLER_READ_RND_NEXT 78
HANDLER_TMP_WRITE 97
# No matching partition, only internal I_S.
SELECT * FROM t1 PARTITION (pNeg) WHERE a = 100;
a b
UNLOCK TABLES;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 5
HANDLER_READ_FIRST 3
HANDLER_READ_NEXT 4
HANDLER_READ_RND_NEXT 104
HANDLER_TMP_WRITE 122
# + 18 for unlock (same as lock above) (100 is not in pNeg, no match)
# Test that EXPLAIN PARTITION works
EXPLAIN PARTITIONS SELECT * FROM t1 PARTITION (pNonexistent);
ERROR HY000: Unknown partition 'pNonexistent' in table 't1'
EXPLAIN PARTITIONS SELECT * FROM t1 PARTITION (subp2);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0-9_subp2 index NULL b 71 NULL 2 Using index
FLUSH STATUS;
EXPLAIN PARTITIONS SELECT * FROM t1 PARTITION (subp2,pNeg) AS TableAlias;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE TableAlias pNeg_subp0,pNeg_subp1,p0-9_subp2 index NULL b 71 NULL 4 Using index
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# 8 locks (1 ha_partition + 3 ha_innobase) x 2 (lock/unlock)
EXPLAIN PARTITIONS SELECT * FROM t1 PARTITION (subp3) AS TableAlias;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE TableAlias p0-9_subp3 index NULL b 71 NULL 3 Using index
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 PARTITION (`p10-99`);
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p10-99_subp4,p10-99_subp5 index NULL PRIMARY 4 NULL 2 Using index
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 1000000;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
EXPLAIN PARTITIONS SELECT * FROM t1 PARTITION (pNeg) WHERE a = 100;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
# Test how it changes the alias/keywords/reserved words
SELECT * FROM t1 PARTITION;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
SELECT * FROM t1 `PARTITION`;
a b
-2 (pNeg-)subp0
5 p0-9:subp3
10 p10-99
-3 pNeg(-subp1)
-1 pNeg(-subp1)
1 subp3
3 subp3
100 `p100-99999`(-subp6)
1000 `p100-99999`(-subp6)
101 `p100-99999`(-subp7)
SELECT * FROM t1 AS PARTITION;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PARTITION' at line 1
SELECT * FROM t1 AS `PARTITION`;
a b
-2 (pNeg-)subp0
5 p0-9:subp3
10 p10-99
-3 pNeg(-subp1)
-1 pNeg(-subp1)
1 subp3
3 subp3
100 `p100-99999`(-subp6)
1000 `p100-99999`(-subp6)
101 `p100-99999`(-subp7)
#
# Test REPLACE
#
FLUSH STATUS;
REPLACE INTO t1 PARTITION (subp0) VALUES (-21, 'Should fail!');
ERROR HY000: Found a row not matching the given partition set
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 22
HANDLER_WRITE 1
# 2 locks (1 ha_partition) x 2 (lock/unlock), Was 4 locks before WL4443
# explicit pruning says part_id 0 and implicit pruning says part_id 1
# so no partition will be locked!
# 0 rollback (since no locked partition)
# 17 writes (I_S internal)
FLUSH STATUS;
REPLACE INTO t1 PARTITION (subp1) VALUES (-21, 'Insert by REPLACE');
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
HANDLER_WRITE 2
# 1 commit
# 4 locks (1 ha_partition + 1 ha_innobase) x 2 (lock/unlock)
# 18 writes (17 I_S internal, 1 ha_innobase)
SELECT * FROM t1 PARTITION (pNeg);
a b
-2 (pNeg-)subp0
-21 Insert by REPLACE
-3 pNeg(-subp1)
-1 pNeg(-subp1)
FLUSH STATUS;
REPLACE INTO t1 PARTITION (subp1) VALUES (-21, 'REPLACEd by REPLACE');
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_KEY 2
HANDLER_TMP_WRITE 22
HANDLER_UPDATE 2
HANDLER_WRITE 2
# 1 commit
# 4 locks (1 ha_partition + 1 ha_innobase) x 2 (lock/unlock)
# 2 read key (1 innobase_get_index when init the index + 1 index read
# to get the position to update)
# 1 update (updated one row, since there is no delete trigger, update
# is used instead of delete+insert)
# 18 write (17 from I_S, 1 for the failed insert)
SELECT * FROM t1 PARTITION (pNeg);
a b
-2 (pNeg-)subp0
-3 pNeg(-subp1)
-1 pNeg(-subp1)
-21 REPLACEd by REPLACE
FLUSH STATUS;
LOCK TABLE t1 WRITE;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# 1 commit
# 9 locks
# 17 write (internal I_S)
DELETE FROM t1 PARTITION(subp1) WHERE b = "REPLACEd by REPLACE";
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 2
HANDLER_DELETE 2
HANDLER_READ_KEY 1
HANDLER_READ_NEXT 1
HANDLER_READ_RND_NEXT 26
HANDLER_TMP_WRITE 47
# + 1 commit
# + 1 delete (one row deleted)
# + 3 read key (1 innodb_get_index in records_in_range,
# 1 innodb_get_index in index_init, 1 index_read in index_read_first)
# + 1 read next (search for another row in secondary index)
# + 19 rnd next (internal I_S)
# + 18 write (internal I_S)
REPLACE INTO t1 PARTITION (subp0) VALUES (-21, 'Should fail!');
ERROR HY000: Found a row not matching the given partition set
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 2
HANDLER_DELETE 2
HANDLER_READ_KEY 1
HANDLER_READ_NEXT 1
HANDLER_READ_RND_NEXT 52
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 72
HANDLER_WRITE 1
# Failed before start_stmt/execution.
# + 19 rnd next (internal I_S)
# 0 rollback (No partition had called start_stmt, all parts pruned)
# + 18 write (internal I_S)
REPLACE INTO t1 PARTITION (pNeg) VALUES (-21, 'Insert by REPLACE');
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 3
HANDLER_DELETE 2
HANDLER_READ_KEY 1
HANDLER_READ_NEXT 1
HANDLER_READ_RND_NEXT 78
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 97
HANDLER_WRITE 3
# + 1 commit
# + 19 rnd next (internal I_S)
# + 19 write (18 internal I_S + 1 real write)
REPLACE INTO t1 PARTITION (subp1) VALUES (-21, 'REPLACEd by REPLACE');
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 4
HANDLER_DELETE 2
HANDLER_READ_KEY 3
HANDLER_READ_NEXT 1
HANDLER_READ_RND_NEXT 104
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 122
HANDLER_UPDATE 2
HANDLER_WRITE 5
# + 1 commit
# + 2 read key (see non locked query)
# + 19 rnd next (internal I_S)
# + 1 update (see non locked query)
# + 19 write (18 internal I_S + 1 failed write)
SELECT * FROM t1 PARTITION (subp1);
a b
-3 pNeg(-subp1)
-1 pNeg(-subp1)
-21 REPLACEd by REPLACE
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 5
HANDLER_DELETE 2
HANDLER_READ_FIRST 1
HANDLER_READ_KEY 3
HANDLER_READ_NEXT 4
HANDLER_READ_RND_NEXT 130
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 147
HANDLER_UPDATE 2
HANDLER_WRITE 5
# + 1 commit
# + 1 read first
# + 2 read key
# + 3 read next
# + 19 rnd next (internal I_S)
# + 18 write (internal I_S)
UNLOCK TABLES;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 5
HANDLER_DELETE 2
HANDLER_READ_FIRST 1
HANDLER_READ_KEY 3
HANDLER_READ_NEXT 4
HANDLER_READ_RND_NEXT 156
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 172
HANDLER_UPDATE 2
HANDLER_WRITE 5
# + 9 locks
# + 19 rnd next (internal I_S)
# + 18 write (internal I_S)
#
# Test LOAD
#
SELECT * FROM t1 PARTITION (pNeg, `p10-99`);
a b
-2 (pNeg-)subp0
10 p10-99
-3 pNeg(-subp1)
-1 pNeg(-subp1)
-21 REPLACEd by REPLACE
FLUSH STATUS;
SELECT * FROM t1 PARTITION (pNeg, `p10-99`) INTO OUTFILE 'loadtest.txt';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_FIRST 4
HANDLER_READ_NEXT 5
HANDLER_TMP_WRITE 22
# 1 commit
# 10 locks (1 ha_partition + 4 ha_innobase) x 2 (lock/unlock)
# 4 read first (for reading the first row in 4 partitions)
# 8 read key (4 from read first + 4 for index init)
# 5 read next (one after each row)
# 17 write (internal I_S)
FLUSH STATUS;
ALTER TABLE t1 TRUNCATE PARTITION pNeg, `p10-99`;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# 10 locks (table + 4 partition) x (lock + unlock)
SELECT * FROM t1 PARTITION (pNeg, `p10-99`);
a b
FLUSH STATUS;
LOAD DATA INFILE 'loadtest.txt' INTO TABLE t1 PARTITION (pNeg);
ERROR HY000: Found a row not matching the given partition set
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 22
HANDLER_WRITE 3
# 6 locks (1 ha_partition + 2 ha_innobase) x 2 (lock+unlock)
# 1 rollback
SELECT * FROM t1 PARTITION (pNeg, `p10-99`);
a b
FLUSH STATUS;
LOAD DATA INFILE 'loadtest.txt' INTO TABLE t1 PARTITION (pNeg, subp4, subp5);
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
HANDLER_WRITE 10
# 10 lock (1 ha_partition + 4 ha_innobase) x 2 (lock + unlock)
ALTER TABLE t1 TRUNCATE PARTITION pNeg, `p10-99`;
FLUSH STATUS;
LOCK TABLE t1 WRITE;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# 9 locks
# 18 read key (ALTER forces table to be closed, see above for open)
LOAD DATA INFILE 'loadtest.txt' INTO TABLE t1 PARTITION (pNeg, `p10-99`);
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 2
HANDLER_READ_RND_NEXT 26
HANDLER_TMP_WRITE 47
HANDLER_WRITE 10
# + 23 write (18 internal I_S + 5 rows)
UNLOCK TABLES;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 2
HANDLER_READ_RND_NEXT 52
HANDLER_TMP_WRITE 72
HANDLER_WRITE 10
# + 9 locks
#
# Test UPDATE
#
FLUSH STATUS;
UPDATE t1 PARTITION(subp0) SET b = concat(b, ', Updated');
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_RND_NEXT 2
HANDLER_TMP_WRITE 22
HANDLER_UPDATE 2
# 1 commit
# 4 lock (1 ha_partition + 1 ha_innobase) x 2 (lock + unlock)
# 1 read first (read first row, called from first rnd_next)
# 2 read key (innobase_get_index from rnd_init +
# read next row from second rnd_next)
# 1 update (update the row)
SELECT * FROM t1 PARTITION (subp0) ORDER BY a;
a b
-2 (pNeg-)subp0, Updated
FLUSH STATUS;
UPDATE t1 PARTITION(subp0) SET b = concat(b, ', Updated2') WHERE a = -2;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_KEY 1
HANDLER_TMP_WRITE 22
HANDLER_UPDATE 2
# 1 commit
# 4 lock
# 1 read key
# 1 update
FLUSH STATUS;
UPDATE t1 PARTITION(subp0) SET a = -4, b = concat(b, ', Updated from a = -2')
WHERE a = -2;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_KEY 1
HANDLER_TMP_WRITE 22
HANDLER_UPDATE 2
# 1 commit
# 4 lock
# 2 read key - (2 index read)
# 1 read rnd - rnd_pos
# 1 update
FLUSH STATUS;
UPDATE t1 PARTITION(subp0) SET b = concat(b, ', Updated2') WHERE a = 100;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# Nothing, since impossible PARTITION+WHERE clause.
FLUSH STATUS;
UPDATE t1 PARTITION(subp0) SET a = -2, b = concat(b, ', Updated from a = 100')
WHERE a = 100;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# Nothing, since impossible PARTITION+WHERE clause.
FLUSH STATUS;
UPDATE t1 PARTITION(`p100-99999`) SET a = -2, b = concat(b, ', Updated from a = 100')
WHERE a = 100;
ERROR HY000: Found a row not matching the given partition set
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_READ_KEY 1
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 22
HANDLER_UPDATE 1
# 6 lock
# 4 read key (1 index init + 1 index read + 1 rnd init + 1 rnd pos)
# 1 read rnd (rnd pos)
# 1 rollback
FLUSH STATUS;
UPDATE t1 PARTITION(`p100-99999`, pNeg) SET a = -4, b = concat(b, ', Updated from a = 100')
WHERE a = 100;
Got one of the listed errors
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_READ_KEY 1
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 22
HANDLER_UPDATE 1
HANDLER_WRITE 1
# 10 locks
# 4 read key
# 1 read rnd
# 1 rollback
# 18 write (17 internal I_S + 1 failed insert)
FLUSH STATUS;
UPDATE t1 PARTITION(`p100-99999`, pNeg) SET a = -222, b = concat(b, ', Updated from a = 100')
WHERE a = 100;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_DELETE 1
HANDLER_READ_KEY 1
HANDLER_TMP_WRITE 22
HANDLER_UPDATE 1
HANDLER_WRITE 1
# 1 commit
# 1 delete
# 4 read key
# 1 read rnd
# 18 write (17 internal I_S + 1 insert)
SELECT * FROM t1 ORDER BY a;
a b
-222 `p100-99999`(-subp6), Updated from a = 100
-21 REPLACEd by REPLACE
-4 (pNeg-)subp0, Updated, Updated2, Updated from a = -2
-3 pNeg(-subp1)
-1 pNeg(-subp1)
1 subp3
3 subp3
5 p0-9:subp3
10 p10-99
101 `p100-99999`(-subp7)
1000 `p100-99999`(-subp6)
# Test of non matching partition (i.e ER_NO_PARTITION_FOUND)
FLUSH STATUS;
UPDATE t1 SET b = concat(b, ', Updated2') WHERE a = 1000000;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# Nothing (no matching partition found)
FLUSH STATUS;
UPDATE t1 PARTITION (pNeg) SET b = concat(b, ', Updated2') WHERE a = 1000000;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# Nothing (no matching partition found)
FLUSH STATUS;
LOCK TABLE t1 WRITE;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# 9 locks
UPDATE t1 PARTITION (subp7) SET b = concat(b, ', Updated to 103'), a = 103 WHERE a = 101;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 2
HANDLER_READ_KEY 1
HANDLER_READ_RND_NEXT 26
HANDLER_TMP_WRITE 47
HANDLER_UPDATE 2
# + 4 read key
# + 1 read rnd
# + 1 update
UPDATE t1 PARTITION (`p100-99999`) SET b = concat(b, ', Updated to 110'), a = 110 WHERE a = 103;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 3
HANDLER_DELETE 1
HANDLER_READ_KEY 2
HANDLER_READ_RND_NEXT 52
HANDLER_TMP_WRITE 72
HANDLER_UPDATE 3
HANDLER_WRITE 1
# + 1 delete
# + 4 read key
# + 1 read rnd
# + 19 write (18 internal I_S + 1 insert)
UNLOCK TABLES;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 3
HANDLER_DELETE 1
HANDLER_READ_KEY 2
HANDLER_READ_RND_NEXT 78
HANDLER_TMP_WRITE 97
HANDLER_UPDATE 3
HANDLER_WRITE 1
+ 9 locks
#
# Test DELETE
#
SELECT * FROM t1 ORDER BY b, a;
a b
-4 (pNeg-)subp0, Updated, Updated2, Updated from a = -2
5 p0-9:subp3
10 p10-99
-3 pNeg(-subp1)
-1 pNeg(-subp1)
-21 REPLACEd by REPLACE
1 subp3
3 subp3
1000 `p100-99999`(-subp6)
-222 `p100-99999`(-subp6), Updated from a = 100
110 `p100-99999`(-subp7), Updated to 103, Updated to 110
FLUSH STATUS;
DELETE FROM t1 PARTITION (pNeg) WHERE a = -1;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_DELETE 2
HANDLER_READ_KEY 1
HANDLER_TMP_WRITE 22
# 1 delete
# 4 locks (pruning works!).
# 1 read key (index read)
FLUSH STATUS;
DELETE FROM t1 PARTITION (subp1) WHERE b like '%subp1%';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_DELETE 2
HANDLER_READ_RND_NEXT 3
HANDLER_TMP_WRITE 22
# 1 delete
# 4 locks
# 1 read first
# 2 read key
# 3 read rnd
FLUSH STATUS;
LOCK TABLE t1 WRITE;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# 9 locks
DELETE FROM t1 PARTITION (subp1) WHERE b = 'p0-9:subp3';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 2
HANDLER_READ_KEY 1
HANDLER_READ_RND_NEXT 26
HANDLER_TMP_WRITE 47
# + 3 read key (1 innodb_get_index in records_in_range
# + 1 innobase_get_index in index_init + 1 index read)
DELETE FROM t1 PARTITION (`p0-9`) WHERE b = 'p0-9:subp3';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 3
HANDLER_DELETE 2
HANDLER_READ_KEY 3
HANDLER_READ_NEXT 1
HANDLER_READ_RND_NEXT 52
HANDLER_TMP_WRITE 72
# + 1 delete
# + 6 read key (same as above, but for two subpartitions)
# + 1 read next (read next after found row)
UNLOCK TABLES;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 3
HANDLER_DELETE 2
HANDLER_READ_KEY 3
HANDLER_READ_NEXT 1
HANDLER_READ_RND_NEXT 78
HANDLER_TMP_WRITE 97
# + 9 locks
# Test multi-table DELETE
# Can be expressed in two different ways.
CREATE TABLE t2 LIKE t1;
FLUSH STATUS;
INSERT INTO t2 PARTITION (`p10-99`, subp3, `p100-99999`) SELECT * FROM t1 PARTITION (subp3, `p10-99`, `p100-99999`);
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_FIRST 5
HANDLER_READ_NEXT 5
HANDLER_TMP_WRITE 22
HANDLER_WRITE 10
# 24 locks (2 table, 5 + 5 subpartitions lock/unlock)
FLUSH STATUS;
ALTER TABLE t2 TRUNCATE PARTITION `p10-99`, `p0-9`, `p100-99999`;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# 14 locks (1 table, 6 subpartitions lock/unlock)
FLUSH STATUS;
INSERT INTO t2 PARTITION (subp3) SELECT * FROM t1 PARTITION (subp3, `p10-99`, `p100-99999`);
ERROR HY000: Found a row not matching the given partition set
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_READ_FIRST 5
HANDLER_ROLLBACK 1
HANDLER_TMP_WRITE 22
HANDLER_WRITE 1
# 16 locks (2 tables, 1 + 5 subpartitions lock/unlock)
FLUSH STATUS;
INSERT IGNORE INTO t2 PARTITION (subp3) SELECT * FROM t1 PARTITION (subp3, `p10-99`, `p100-99999`);
Warnings:
Warning 1748 Found a row not matching the given partition set
Warning 1748 Found a row not matching the given partition set
Warning 1748 Found a row not matching the given partition set
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_FIRST 5
HANDLER_READ_NEXT 5
HANDLER_TMP_WRITE 22
HANDLER_WRITE 7
# 16 locks (2 tables, 1 + 5 subpartitions lock/unlock)
TRUNCATE TABLE t2;
FLUSH STATUS;
INSERT INTO t2 SELECT * FROM t1 PARTITION (subp3, `p10-99`, `p100-99999`);
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_FIRST 5
HANDLER_READ_NEXT 5
HANDLER_TMP_WRITE 22
HANDLER_WRITE 10
# 30 locks (2 table, 8 + 5 subpartitions lock/unlock)
FLUSH STATUS;
CREATE TABLE t3 SELECT * FROM t1 PARTITION (pNeg,subp3,`p100-99999`);
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_FIRST 5
HANDLER_READ_NEXT 7
HANDLER_TMP_WRITE 22
HANDLER_WRITE 7
# 14 locks (2 table, 5 subpartitions lock/unlock)
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` varchar(64) DEFAULT NULL,
PRIMARY KEY (`a`),
KEY `b` (`b`,`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY RANGE (a)
SUBPARTITION BY HASH (a)
(PARTITION pNeg VALUES LESS THAN (0)
(SUBPARTITION subp0 ENGINE = InnoDB,
SUBPARTITION subp1 ENGINE = InnoDB),
PARTITION `p0-9` VALUES LESS THAN (10)
(SUBPARTITION subp2 ENGINE = InnoDB,
SUBPARTITION subp3 ENGINE = InnoDB),
PARTITION `p10-99` VALUES LESS THAN (100)
(SUBPARTITION subp4 ENGINE = InnoDB,
SUBPARTITION subp5 ENGINE = InnoDB),
PARTITION `p100-99999` VALUES LESS THAN (100000)
(SUBPARTITION subp6 ENGINE = InnoDB,
SUBPARTITION subp7 ENGINE = InnoDB)) */
SELECT * FROM t1;
a b
-4 (pNeg-)subp0, Updated, Updated2, Updated from a = -2
10 p10-99
-21 REPLACEd by REPLACE
1 subp3
3 subp3
1000 `p100-99999`(-subp6)
-222 `p100-99999`(-subp6), Updated from a = 100
110 `p100-99999`(-subp7), Updated to 103, Updated to 110
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` int(11) NOT NULL,
`b` varchar(64) DEFAULT NULL,
PRIMARY KEY (`a`),
KEY `b` (`b`,`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY RANGE (a)
SUBPARTITION BY HASH (a)
(PARTITION pNeg VALUES LESS THAN (0)
(SUBPARTITION subp0 ENGINE = InnoDB,
SUBPARTITION subp1 ENGINE = InnoDB),
PARTITION `p0-9` VALUES LESS THAN (10)
(SUBPARTITION subp2 ENGINE = InnoDB,
SUBPARTITION subp3 ENGINE = InnoDB),
PARTITION `p10-99` VALUES LESS THAN (100)
(SUBPARTITION subp4 ENGINE = InnoDB,
SUBPARTITION subp5 ENGINE = InnoDB),
PARTITION `p100-99999` VALUES LESS THAN (100000)
(SUBPARTITION subp6 ENGINE = InnoDB,
SUBPARTITION subp7 ENGINE = InnoDB)) */
SELECT * FROM t2;
a b
10 p10-99
1 subp3
3 subp3
1000 `p100-99999`(-subp6)
110 `p100-99999`(-subp7), Updated to 103, Updated to 110
SHOW CREATE TABLE t3;
Table Create Table
t3 CREATE TABLE `t3` (
`a` int(11) NOT NULL,
`b` varchar(64) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
SELECT * FROM t3;
a b
-4 (pNeg-)subp0, Updated, Updated2, Updated from a = -2
-21 REPLACEd by REPLACE
1 subp3
3 subp3
1000 `p100-99999`(-subp6)
-222 `p100-99999`(-subp6), Updated from a = 100
110 `p100-99999`(-subp7), Updated to 103, Updated to 110
FLUSH STATUS;
DELETE t1 PARTITION (pNeg), t3 FROM t1, t3
WHERE t1.a = t3.a AND t3.b = 'subp3';
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PARTITION (pNeg), t3 FROM t1, t3
WHERE t1.a = t3.a AND t3.b = 'subp3'' at line 1
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_TMP_WRITE 22
# Multi table delete without any matching rows
FLUSH STATUS;
DELETE t1, t2 FROM t1 PARTITION (pNeg), t3, t2 PARTITION (subp3)
WHERE t1.a = t3.a AND t3.b = 'subp3' AND t3.a = t2.a;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_READ_RND_NEXT 3
HANDLER_TMP_WRITE 22
# 12 locks (3 in t1, 1 in t3, 2 in t2) x 2 (lock + unlock)
# 1 read first (first rnd_next in t2)
# 4 read key (1 innodb_get_index in rnd_init in t2 + index read in t2
# + 2 innodb_get_index in index_init in t1)
# 3 read rnd next (3 rnd next in t2, 2 rows + 1 empty)
# Multi table delete matching all rows in subp3 (2 rows in per table)
FLUSH STATUS;
DELETE FROM t2, t3 USING t2 PARTITION (`p0-9`), t3, t1 PARTITION (subp3)
WHERE t1.a = t3.a AND t3.b = 'subp3' AND t2.a = t1.a;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_DELETE 6
HANDLER_READ_FIRST 1
HANDLER_READ_KEY 2
HANDLER_READ_NEXT 2
HANDLER_READ_RND 2
HANDLER_READ_RND_NEXT 16
HANDLER_TMP_WRITE 22
# 4 delete (2 in t2 + 2 in t3)
# 12 locks (3 in t2, 1 in t3, 2 in t1) x 2 (lock + unlock)
# 3 read first (1 in t1 + 1 in t3 + 1 in t3, for second row in t1)
# 17 read key (1 index_init in t1 + 1 read first in t1 +
# 2 index_init in t2 + 1 index read in t2 +
# 1 index_init in t3 + 1 index read in t3 +
# 1 index read in t2 +
# 1 index_init in t3 + 1 index read in t3 +
# 2 index_init in t2 + 2 index read in t2 (from rnd_pos)
# 1 index_init in t3 + 2 index read in t3 (from rnd_pos))
# 2 read next (1 in t1 + 1 in t1, second row)
# 4 read rnd (position on 4 found rows to delete)
# 16 rnd next (8 in t3 + 8 in t3, for second row)
SELECT * FROM t1 ORDER BY a;
a b
-222 `p100-99999`(-subp6), Updated from a = 100
-21 REPLACEd by REPLACE
-4 (pNeg-)subp0, Updated, Updated2, Updated from a = -2
1 subp3
3 subp3
10 p10-99
110 `p100-99999`(-subp7), Updated to 103, Updated to 110
1000 `p100-99999`(-subp6)
SELECT * FROM t2 ORDER BY a;
a b
10 p10-99
110 `p100-99999`(-subp7), Updated to 103, Updated to 110
1000 `p100-99999`(-subp6)
SELECT * FROM t3 ORDER BY a;
a b
-222 `p100-99999`(-subp6), Updated from a = 100
-21 REPLACEd by REPLACE
-4 (pNeg-)subp0, Updated, Updated2, Updated from a = -2
110 `p100-99999`(-subp7), Updated to 103, Updated to 110
1000 `p100-99999`(-subp6)
# Test TRUNCATE TABLE (should fail, since one should use
# ALTER TABLE ... TRUNCATE PARTITION instead)
TRUNCATE TABLE t1 PARTITION(`p10-99`);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PARTITION(`p10-99`)' at line 1
# Test of locking in TRUNCATE PARTITION
# Note that it does not support truncating subpartitions
FLUSH STATUS;
ALTER TABLE t1 TRUNCATE PARTITION pNeg;
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
VARIABLE_NAME VARIABLE_VALUE
HANDLER_COMMIT 1
HANDLER_TMP_WRITE 22
# 6 locks (lock/unlock two subpartitions + table)
# Test on non partitioned table
SELECT * FROM t3 PARTITION (pNeg);
ERROR HY000: PARTITION () clause on non partitioned table
DROP TABLE t1, t2, t3;
# Test from superseeded WL# 2682
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
CREATE TABLE `t1` (
`id` int(11) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
PARTITION BY RANGE (id) (
PARTITION p0 VALUES LESS THAN (6) ENGINE = MyISAM,
PARTITION p1 VALUES LESS THAN (11) ENGINE = MyISAM,
PARTITION p2 VALUES LESS THAN (16) ENGINE = MyISAM,
PARTITION p3 VALUES LESS THAN (21) ENGINE = MyISAM);
INSERT INTO `t1` VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10),
(11), (12), (13), (14), (15), (16), (17), (18), (19), (20);
SELECT * FROM t1;
id
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
SELECT * FROM t1 PARTITION (p0);
id
1
2
3
4
5
SELECT * FROM t1 PARTITION (p1);
id
6
7
8
9
10
SELECT * FROM t1 PARTITION (p2);
id
11
12
13
14
15
SELECT * FROM t1 PARTITION (p3);
id
16
17
18
19
20
SELECT * FROM t1 PARTITION (p3) WHERE id = 2;
id
SELECT * FROM t1 PARTITION (foo);
ERROR HY000: Unknown partition 'foo' in table 't1'
CREATE TABLE `t2` (
`id` int(11) NOT NULL DEFAULT 0,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
PARTITION BY RANGE (id) (
PARTITION p0 VALUES LESS THAN (6) ENGINE = MyISAM,
PARTITION p1 VALUES LESS THAN (11) ENGINE = MyISAM,
PARTITION p2 VALUES LESS THAN (16) ENGINE = MyISAM,
PARTITION p3 VALUES LESS THAN (21) ENGINE = MyISAM);
INSERT INTO `t2` VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10),
(11), (12), (13), (14), (15), (16), (17), (18), (19), (20);
SELECT * FROM t2;
id
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
SELECT * FROM t2 PARTITION (p0);
id
1
2
3
4
5
SELECT * FROM t2 PARTITION (p1);
id
6
7
8
9
10
SELECT * FROM t2 PARTITION (p2);
id
11
12
13
14
15
SELECT * FROM t2 PARTITION (p3);
id
16
17
18
19
20
SELECT * FROM t2 PARTITION (p3) ORDER BY id;
id
16
17
18
19
20
SELECT * FROM t2 PARTITION (p3) WHERE id = 2;
id
SELECT * FROM t2 PARTITION (foo);
ERROR HY000: Unknown partition 'foo' in table 't2'
CREATE TABLE `t3` (
`id` int(32) default NULL,
`name` varchar(32) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
PARTITION BY LIST (id) (
PARTITION p0 VALUES IN (1,3,5,7),
PARTITION p1 VALUES IN (0,2,4,6,8),
PARTITION p2 VALUES IN (9,10,11,12,13)
);
INSERT INTO `t3` VALUES (1,'first'), (3,'third'),(5,'fifth'),(7,'seventh'),(0,'zilch'),(2,'second'),(4,'fourth'),(6,'sixth'),(8,'eighth'),(9,'ninth'),(10,'tenth'),(11,'eleventh'),(12,'twelfth'),(13,'thirteenth');
SELECT * FROM `t3`;
id name
1 first
3 third
5 fifth
7 seventh
0 zilch
2 second
4 fourth
6 sixth
8 eighth
9 ninth
10 tenth
11 eleventh
12 twelfth
13 thirteenth
SELECT * FROM `t3` PARTITION (p0);
id name
1 first
3 third
5 fifth
7 seventh
SELECT * FROM `t3` PARTITION (p1);
id name
0 zilch
2 second
4 fourth
6 sixth
8 eighth
SELECT * FROM `t3` PARTITION (p2);
id name
9 ninth
10 tenth
11 eleventh
12 twelfth
13 thirteenth
SELECT * FROM `t3` PARTITION (p2) ORDER BY id;
id name
9 ninth
10 tenth
11 eleventh
12 twelfth
13 thirteenth
DROP TABLE IF EXISTS `t4`;
Warnings:
Note 1051 Unknown table 'test.t4'
CREATE TABLE `t4` (
`id` int(32) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 PARTITION BY HASH (id) ;
INSERT INTO `t4` SELECT * FROM `t2`;
INSERT INTO `t4` SELECT * FROM `t2` ORDER BY id;
CREATE TABLE `t5` (
id int(32),
name varchar(64),
purchased date)
PARTITION BY RANGE( YEAR(purchased) )
SUBPARTITION BY HASH( TO_DAYS(purchased) ) (
PARTITION p0 VALUES LESS THAN (1990) (
SUBPARTITION s0,
SUBPARTITION s1
),
PARTITION p1 VALUES LESS THAN (2000) (
SUBPARTITION s2,
SUBPARTITION s3
),
PARTITION p2 VALUES LESS THAN MAXVALUE (
SUBPARTITION s4,
SUBPARTITION s5
)
);
INSERT INTO `t5` VALUES (1, 'aaaaaaa', '2006-01-05 00:00:00');
INSERT INTO `t5` VALUES (2, 'bbbbbbb', '2005-08-05 00:00:00');
INSERT INTO `t5` VALUES (3, 'ccccccc', '1985-08-07 00:00:00');
INSERT INTO `t5` VALUES (4, 'ddddddd', '2000-01-01 00:00:00');
INSERT INTO `t5` VALUES (5, 'eeeeeee', '1999-12-01 00:00:00');
INSERT INTO `t5` VALUES (6, 'fffffff', '2003-11-12 00:00:00');
INSERT INTO `t5` VALUES (7, 'ggggggg', '1990-01-05 00:00:00');
INSERT INTO `t5` VALUES (8, 'hhhhhhh', '1978-01-05 00:00:00');
INSERT INTO `t5` VALUES (9, 'iiiiiii', '1979-01-05 00:00:00');
INSERT INTO `t5` VALUES (10, 'jjjjjjj', '1992-01-05 00:00:00');
INSERT INTO `t5` VALUES (11, 'kkkkkkk', '1993-01-05 00:00:00');
INSERT INTO `t5` VALUES (12, 'mmmmmmm', '1994-01-05 00:00:00');
INSERT INTO `t5` VALUES (13, 'nnnnnnn', '1989-01-05 00:00:00');
INSERT INTO `t5` VALUES (14, 'ooooooo', '1983-12-05 00:00:00');
INSERT INTO `t5` VALUES (15, 'ppppppp', '1986-06-05 00:00:00');
INSERT INTO `t5` VALUES (16, 'qqqqqqq', '1974-04-11 00:00:00');
INSERT INTO `t5` VALUES (17, 'qqqqqqq', '1960-03-15 00:00:00');
INSERT INTO `t5` VALUES (18, 'sssssss', '1950-09-23 00:00:00');
INSERT INTO `t5` VALUES (19, 'ttttttt', '1999-08-02 00:00:00');
INSERT INTO `t5` VALUES (20, 'uuuuuuu', '1994-05-28 00:00:00');
SELECT * FROM `t5`;
id name purchased
8 hhhhhhh 1978-01-05
13 nnnnnnn 1989-01-05
14 ooooooo 1983-12-05
18 sssssss 1950-09-23
3 ccccccc 1985-08-07
9 iiiiiii 1979-01-05
15 ppppppp 1986-06-05
16 qqqqqqq 1974-04-11
17 qqqqqqq 1960-03-15
5 eeeeeee 1999-12-01
12 mmmmmmm 1994-01-05
7 ggggggg 1990-01-05
10 jjjjjjj 1992-01-05
11 kkkkkkk 1993-01-05
19 ttttttt 1999-08-02
20 uuuuuuu 1994-05-28
2 bbbbbbb 2005-08-05
6 fffffff 2003-11-12
1 aaaaaaa 2006-01-05
4 ddddddd 2000-01-01
SELECT * FROM `t5` PARTITION(p0) ORDER BY id;
id name purchased
3 ccccccc 1985-08-07
8 hhhhhhh 1978-01-05
9 iiiiiii 1979-01-05
13 nnnnnnn 1989-01-05
14 ooooooo 1983-12-05
15 ppppppp 1986-06-05
16 qqqqqqq 1974-04-11
17 qqqqqqq 1960-03-15
18 sssssss 1950-09-23
SELECT * FROM `t5` PARTITION(s0) ORDER BY id;
id name purchased
8 hhhhhhh 1978-01-05
13 nnnnnnn 1989-01-05
14 ooooooo 1983-12-05
18 sssssss 1950-09-23
SELECT * FROM `t5` PARTITION(s1) ORDER BY id;
id name purchased
3 ccccccc 1985-08-07
9 iiiiiii 1979-01-05
15 ppppppp 1986-06-05
16 qqqqqqq 1974-04-11
17 qqqqqqq 1960-03-15
SELECT * FROM `t5` PARTITION(p1) ORDER BY id;
id name purchased
5 eeeeeee 1999-12-01
7 ggggggg 1990-01-05
10 jjjjjjj 1992-01-05
11 kkkkkkk 1993-01-05
12 mmmmmmm 1994-01-05
19 ttttttt 1999-08-02
20 uuuuuuu 1994-05-28
SELECT * FROM `t5` PARTITION(s2) ORDER BY id;
id name purchased
5 eeeeeee 1999-12-01
12 mmmmmmm 1994-01-05
SELECT * FROM `t5` PARTITION(s3) ORDER BY id;
id name purchased
7 ggggggg 1990-01-05
10 jjjjjjj 1992-01-05
11 kkkkkkk 1993-01-05
19 ttttttt 1999-08-02
20 uuuuuuu 1994-05-28
SELECT * FROM `t5` PARTITION(p2) ORDER BY id;
id name purchased
1 aaaaaaa 2006-01-05
2 bbbbbbb 2005-08-05
4 ddddddd 2000-01-01
6 fffffff 2003-11-12
SELECT * FROM `t5` PARTITION(s4) ORDER BY id;
id name purchased
2 bbbbbbb 2005-08-05
6 fffffff 2003-11-12
SELECT * FROM `t5` PARTITION(s5) ORDER BY id;
id name purchased
1 aaaaaaa 2006-01-05
4 ddddddd 2000-01-01
drop table t1,t2,t3,t4,t5;
create table t1 (a int) partition by hash(a) partitions 3;
insert into t1 values(1),(2),(3);
explain partitions select * from t1 where a=1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 partition (p1) where a=1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 partition (p1) where a=1 or a=2;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 partition (p2) where a=1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
drop table t1;
#
# Bug#59864: Crash if table empty: DELETE FROM t2 PARTITION (subp3).
#
CREATE TABLE t1
(a INT NOT NULL,
b varchar (64),
INDEX (b,a),
PRIMARY KEY (a))
PARTITION BY RANGE (a)
SUBPARTITION BY HASH (a) SUBPARTITIONS 3
(PARTITION pNeg VALUES LESS THAN (0)
(SUBPARTITION subp0,
SUBPARTITION subp1,
SUBPARTITION subp2),
PARTITION `p0-29` VALUES LESS THAN (30)
(SUBPARTITION subp3,
SUBPARTITION subp4,
SUBPARTITION subp5),
PARTITION `p30-299` VALUES LESS THAN (300)
(SUBPARTITION subp6,
SUBPARTITION subp7,
SUBPARTITION subp8),
PARTITION `p300-2999` VALUES LESS THAN (3000)
(SUBPARTITION subp9,
SUBPARTITION subp10,
SUBPARTITION subp11),
PARTITION `p3000-299999` VALUES LESS THAN (300000)
(SUBPARTITION subp12,
SUBPARTITION subp13,
SUBPARTITION subp14));
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` varchar(64) DEFAULT NULL,
PRIMARY KEY (`a`),
KEY `b` (`b`,`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY RANGE (a)
SUBPARTITION BY HASH (a)
(PARTITION pNeg VALUES LESS THAN (0)
(SUBPARTITION subp0 ENGINE = InnoDB,
SUBPARTITION subp1 ENGINE = InnoDB,
SUBPARTITION subp2 ENGINE = InnoDB),
PARTITION `p0-29` VALUES LESS THAN (30)
(SUBPARTITION subp3 ENGINE = InnoDB,
SUBPARTITION subp4 ENGINE = InnoDB,
SUBPARTITION subp5 ENGINE = InnoDB),
PARTITION `p30-299` VALUES LESS THAN (300)
(SUBPARTITION subp6 ENGINE = InnoDB,
SUBPARTITION subp7 ENGINE = InnoDB,
SUBPARTITION subp8 ENGINE = InnoDB),
PARTITION `p300-2999` VALUES LESS THAN (3000)
(SUBPARTITION subp9 ENGINE = InnoDB,
SUBPARTITION subp10 ENGINE = InnoDB,
SUBPARTITION subp11 ENGINE = InnoDB),
PARTITION `p3000-299999` VALUES LESS THAN (300000)
(SUBPARTITION subp12 ENGINE = InnoDB,
SUBPARTITION subp13 ENGINE = InnoDB,
SUBPARTITION subp14 ENGINE = InnoDB)) */
INSERT INTO t1 VALUES (-9, "negative nine"), (-8, "-8"), (-7, "-7"), (-6, "-6"), (-5, "-5"), (-4, "-4"), (-3, "-3"), (-2, "-2"), (-1, "-1");
INSERT INTO t1 VALUES (9, "nine"), (8, "8"), (7, "7"), (6, "6"), (5, "5"), (4, "4"), (3, "3"), (2, "2"), (1, "1");
INSERT INTO t1 VALUES (39, "Thirty nine"), (38, "38"), (37, "37"), (36, "36"), (35, "35"), (34, "34"), (33, "33"), (32, "32"), (31, "31");
INSERT INTO t1 VALUES (339, "Three hundred thirty nine"), (338, "338"), (337, "337"), (336, "336"), (335, "335"), (334, "334"), (333, "333"), (332, "332"), (331, "331");
INSERT INTO t1 VALUES (3339, "Three thousand three hundred thirty nine"), (3338, "3338"), (3337, "3337"), (3336, "3336"), (3335, "3335"), (3334, "3334"), (3333, "3333"), (3332, "3332"), (3331, "3331");
SELECT * FROM t1;
a b
-1 -1
-2 -2
-3 -3
-4 -4
-5 -5
-6 -6
-7 -7
-8 -8
-9 negative nine
1 1
2 2
3 3
31 31
32 32
33 33
331 331
332 332
333 333
3331 3331
3332 3332
3333 3333
3334 3334
3335 3335
3336 3336
3337 3337
3338 3338
3339 Three thousand three hundred thirty nine
334 334
335 335
336 336
337 337
338 338
339 Three hundred thirty nine
34 34
35 35
36 36
37 37
38 38
39 Thirty nine
4 4
5 5
6 6
7 7
8 8
9 nine
SELECT * FROM t1 PARTITION (subp3);
a b
3 3
6 6
9 nine
DELETE FROM t1 PARTITION (subp3);
SELECT * FROM t1;
a b
-1 -1
-2 -2
-3 -3
-4 -4
-5 -5
-6 -6
-7 -7
-8 -8
-9 negative nine
1 1
2 2
31 31
32 32
33 33
331 331
332 332
333 333
3331 3331
3332 3332
3333 3333
3334 3334
3335 3335
3336 3336
3337 3337
3338 3338
3339 Three thousand three hundred thirty nine
334 334
335 335
336 336
337 337
338 338
339 Three hundred thirty nine
34 34
35 35
36 36
37 37
38 38
39 Thirty nine
4 4
5 5
7 7
8 8
SELECT * FROM t1 PARTITION (subp3);
a b
DELETE FROM t1 PARTITION (`p0-29`);
SELECT * FROM t1;
a b
-1 -1
-2 -2
-3 -3
-4 -4
-5 -5
-6 -6
-7 -7
-8 -8
-9 negative nine
31 31
32 32
33 33
331 331
332 332
333 333
3331 3331
3332 3332
3333 3333
3334 3334
3335 3335
3336 3336
3337 3337
3338 3338
3339 Three thousand three hundred thirty nine
334 334
335 335
336 336
337 337
338 338
339 Three hundred thirty nine
34 34
35 35
36 36
37 37
38 38
39 Thirty nine
SELECT * FROM t1 PARTITION (`p0-29`);
a b
ALTER TABLE t1 PARTITION BY HASH (a) PARTITIONS 3;
DELETE FROM t1 PARTITION (p2);
SELECT * FROM t1;
a b
-1 -1
-3 -3
-4 -4
-6 -6
-7 -7
-9 negative nine
31 31
33 33
331 331
333 333
3331 3331
3333 3333
3334 3334
3336 3336
3337 3337
3339 Three thousand three hundred thirty nine
334 334
336 336
337 337
339 Three hundred thirty nine
34 34
36 36
37 37
39 Thirty nine
SELECT * FROM t1 PARTITION (p2);
a b
DROP TABLE t1;
#
# Test explicit partition selection on a non partitioned temp table
#
CREATE TEMPORARY TABLE t1 (a INT);
SELECT * FROM t1 PARTITION(pNonexisting);
ERROR HY000: PARTITION () clause on non partitioned table
DROP TEMPORARY TABLE t1;
#
# Test CREATE LIKE does not take PARTITION clause
#
CREATE TABLE t1 (a INT) PARTITION BY HASH (a) PARTITIONS 3;
CREATE TABLE t2 LIKE t1 PARTITION (p0, p2);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PARTITION (p0, p2)' at line 1
DROP TABLE t1;
SET @@default_storage_engine = @old_default_storage_engine;
--source include/have_innodb.inc
--source include/have_partition.inc
# Helper statement
let $get_handler_status_counts= SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0;
--echo #
--echo # Bug#13559657: PARTITION SELECTION DOES NOT WORK WITH VIEWS
--echo #
CREATE TABLE t1 (a int)
ENGINE = InnoDB
PARTITION BY HASH (a) PARTITIONS 2;
INSERT INTO t1 VALUES (0), (1), (2), (3);
CREATE VIEW v1 AS SELECT a FROM t1 PARTITION (p0);
SHOW CREATE VIEW v1;
FLUSH STATUS;
--sorted_result
SELECT * FROM v1;
eval $get_handler_status_counts;
--echo # 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
--sorted_result
SELECT a FROM t1 PARTITION (p0);
eval $get_handler_status_counts;
--echo # 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
INSERT INTO v1 VALUES (10);
eval $get_handler_status_counts;
--echo # 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
# --error ER_ROW_DOES_NOT_MATCH_GIVEN_PARTITION_SET
# INSERT INTO v1 VALUES (11);
eval $get_handler_status_counts;
--echo # 2 locks (1 table, all partitions pruned)
FLUSH STATUS;
--sorted_result
SELECT * FROM v1;
eval $get_handler_status_counts;
--echo # 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
--sorted_result
SELECT a FROM t1 PARTITION (p0);
eval $get_handler_status_counts;
--echo # 4 locks (1 table, 1 partition lock/unlock)
--sorted_result
SELECT * FROM t1;
DROP VIEW v1;
CREATE VIEW v1 AS SELECT a FROM t1 PARTITION (p0) WITH CHECK OPTION;
FLUSH STATUS;
INSERT INTO v1 VALUES (20);
eval $get_handler_status_counts;
--echo # 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
# --error ER_ROW_DOES_NOT_MATCH_GIVEN_PARTITION_SET
# INSERT INTO v1 VALUES (21);
eval $get_handler_status_counts;
--echo # 2 locks (1 table, all partitions pruned)
--sorted_result
SELECT * FROM v1;
--sorted_result
SELECT * FROM t1;
DROP VIEW v1;
CREATE VIEW v1 AS
SELECT a FROM t1 PARTITION (p0) WHERE a = 30 WITH CHECK OPTION;
FLUSH STATUS;
INSERT INTO v1 VALUES (30);
eval $get_handler_status_counts;
--echo # 4 locks (1 table, 1 partition lock/unlock)
FLUSH STATUS;
--error ER_VIEW_CHECK_FAILED
INSERT INTO v1 VALUES (31);
eval $get_handler_status_counts;
--echo # 2 locks (1 table, all partitions pruned)
FLUSH STATUS;
--error ER_VIEW_CHECK_FAILED
INSERT INTO v1 VALUES (32);
eval $get_handler_status_counts;
--echo # 4 locks (1 table, 1 partition lock/unlock)
--sorted_result
SELECT * FROM v1;
--sorted_result
SELECT * FROM t1;
DROP VIEW v1;
DROP TABLE t1;
--echo # Original tests for WL#5217
--echo # Must have InnoDB as engine to get the same statistics results.
--echo # embedded uses MyISAM as default. CREATE SELECT uses the default engine.
SET @old_default_storage_engine = @@default_storage_engine;
SET @@default_storage_engine = 'InnoDB';
--let $MYSQLD_DATADIR= `SELECT @@datadir`
--echo # Test to show if I_S affects HANDLER_ counts
FLUSH STATUS;
eval $get_handler_status_counts;
eval $get_handler_status_counts;
--echo # OK, seems to add number of variables processed before HANDLER_WRITE
--echo # and number of variables + 1 evaluated in the previous call in RND_NEXT
CREATE TABLE t1
(a INT NOT NULL,
b varchar (64),
INDEX (b,a),
PRIMARY KEY (a))
ENGINE = InnoDB
PARTITION BY RANGE (a)
SUBPARTITION BY HASH (a) SUBPARTITIONS 2
(PARTITION pNeg VALUES LESS THAN (0)
(SUBPARTITION subp0,
SUBPARTITION subp1),
PARTITION `p0-9` VALUES LESS THAN (10)
(SUBPARTITION subp2,
SUBPARTITION subp3),
PARTITION `p10-99` VALUES LESS THAN (100)
(SUBPARTITION subp4,
SUBPARTITION subp5),
PARTITION `p100-99999` VALUES LESS THAN (100000)
(SUBPARTITION subp6,
SUBPARTITION subp7));
SHOW CREATE TABLE t1;
--echo # First test that the syntax is OK
--error ER_PARSE_ERROR
SHOW CREATE TABLE t1 PARTITION (subp0);
--echo # Not a correct partition list
--error ER_PARSE_ERROR
INSERT INTO t1 PARTITION () VALUES (1, "error");
--error ER_UNKNOWN_PARTITION
INSERT INTO t1 PARTITION (pNonExisting) VALUES (1, "error");
--error ER_UNKNOWN_PARTITION
INSERT INTO t1 PARTITION (pNeg, pNonExisting) VALUES (1, "error");
--echo # Duplicate partitions and overlapping partitions and subpartitios is OK
FLUSH STATUS;
INSERT INTO t1 PARTITION (pNeg, pNeg) VALUES (-1, "pNeg(-subp1)");
eval $get_handler_status_counts;
--echo # Should be 1 commit
--echo # 4 external locks (due to pruning of locks)
--echo # (1 ha_partition + 1 ha_innobase) x 2 (lock + unlock)
--echo # and 18 write (1 ha_innobase + 17 internal I_S write)
INSERT INTO t1 PARTITION (pNeg, subp0) VALUES (-3, "pNeg(-subp1)");
INSERT INTO t1 PARTITION (pNeg, subp0) VALUES (-2, "(pNeg-)subp0");
--echo # should be correct
INSERT INTO t1 PARTITION (`p100-99999`) VALUES (100, "`p100-99999`(-subp6)"), (101, "`p100-99999`(-subp7)"), (1000, "`p100-99999`(-subp6)");
INSERT INTO t1 PARTITION(`p10-99`,subp3) VALUES (1, "subp3"), (10, "p10-99");
FLUSH STATUS;
INSERT INTO t1 PARTITION(subp3) VALUES (3, "subp3");
eval $get_handler_status_counts;
--echo # Should be 1 commit
--echo # 4 external locks
--echo # (1 ha_partition + 1 ha_innobase) x 2 (lock + unlock)
--echo # and 18 write (1 ha_innobase + 17 internal I_S write)
FLUSH STATUS;
LOCK TABLE t1 WRITE;
eval $get_handler_status_counts;
--echo # should be 1 commit
--echo # 9 locks (1 ha_partition + 8 ha_innobase)
--echo # 17 writes (internal I_S)
INSERT INTO t1 PARTITION(`p0-9`) VALUES (5, "p0-9:subp3");
eval $get_handler_status_counts;
--echo # + 1 commit
--echo # + 19 rnd next (internal I_S)
--echo # + 19 write (18 internal I_S + 1 insert)
UNLOCK TABLES;
eval $get_handler_status_counts;
--echo # + 9 locks (unlocks)
--echo # + 19 rnd next (internal I_S)
--echo # + 18 write (internal I_S)
--echo # Not matching partitions with inserted value
--error ER_ROW_DOES_NOT_MATCH_GIVEN_PARTITION_SET
INSERT INTO t1 PARTITION (pNeg, pNeg) VALUES (1, "error");
--error ER_ROW_DOES_NOT_MATCH_GIVEN_PARTITION_SET
INSERT INTO t1 PARTITION (pNeg, subp0) VALUES (1, "error");
--error ER_ROW_DOES_NOT_MATCH_GIVEN_PARTITION_SET
INSERT INTO t1 PARTITION (`p100-99999`) VALUES (1, "error"), (10, "error");
--error ER_NO_PARTITION_FOR_GIVEN_VALUE
INSERT INTO t1 VALUES (1000000, "error"), (9999999, "error");
--error ER_NO_PARTITION_FOR_GIVEN_VALUE
INSERT INTO t1 PARTITION (`p100-99999`) VALUES (1000000, "error"), (9999999, "error");
--error ER_DUP_ENTRY,ER_DUP_KEY
INSERT INTO t1 PARTITION (pNeg, subp4) VALUES (-7, "pNeg(-subp1)"), (-10, "pNeg(-subp0)"), (-1, "pNeg(-subp1)"), (-99, "pNeg(-subp1)");
SELECT * FROM t1 ORDER BY a;
ANALYZE TABLE t1;
SET @save_innodb_stats_on_metadata=@@global.innodb_stats_on_metadata;
SET @@global.innodb_stats_on_metadata=ON;
SELECT PARTITION_NAME, SUBPARTITION_NAME, TABLE_ROWS
FROM INFORMATION_SCHEMA.PARTITIONS
WHERE TABLE_SCHEMA = 'test'
AND TABLE_NAME = 't1' ORDER BY SUBPARTITION_NAME;
SET @@global.innodb_stats_on_metadata=@save_innodb_stats_on_metadata;
FLUSH STATUS;
--error ER_UNKNOWN_PARTITION
SELECT * FROM t1 PARTITION (pNonexistent);
eval $get_handler_status_counts;
--echo # should have failed before locking (only 17 internal I_S writes)
FLUSH STATUS;
SELECT * FROM t1 PARTITION (subp2);
eval $get_handler_status_counts;
--echo # Should be 1 commit
--echo # 4 locks (1 ha_partition + 1 ha_innobase) x 2 (lock/unlock)
--echo # 1 read first (also calls index_read)
--echo # 2 read key (first from innobase_get_index and second from index first)
--echo # 17 writes (internal I_S)
FLUSH STATUS;
SELECT * FROM t1 PARTITION (subp2,pNeg) AS TableAlias;
eval $get_handler_status_counts;
--echo # Should be 1 commit
--echo # 8 locks (1 ha_partition + 2 + 1 ha_innobase) x 2
--echo # 3 read first (one for each partition)
--echo # 6 read key (3 from read first and 3 from innobase_get_index)
--echo # 3 read next (one next call after each read row)
--echo # 17 writes (internal I_S)
FLUSH STATUS;
LOCK TABLE t1 READ, t1 as TableAlias READ;
eval $get_handler_status_counts;
--echo # 1 commit
--echo # 18 locks
--echo # 18 READ KEY from opening a new partition table instance,
--echo # (1 innobase_get_index for each index, per partition, 1 x 2 x 8 = 16
--echo # + info(HA_STATUS_CONST) call on the partition with the most number
--echo # of rows, 2 innobase_get_index for updating both index statistics)
--echo # 17 writes (internal I_S)
SELECT * FROM t1 PARTITION (subp3) AS TableAlias;
eval $get_handler_status_counts;
--echo # + 1 commit
--echo # + 1 read first (read first key from index in one partition)
--echo # + 2 read key (innobase_get_index from index_init + from index_first)
--echo # + 3 read next (one after each row)
--echo # + 19 rnd next (from the last I_S query)
--echo # + 18 write (internal I_S)
SELECT COUNT(*) FROM t1 PARTITION (`p10-99`);
eval $get_handler_status_counts;
--echo # + 1 commit
--echo # + 2 read first (one for each subpart)
--echo # + 4 read key (innobase_get_index from index_init + from index_first)
--echo # + 1 read next (one after each row)
--echo # + 19 rnd next (from the last I_S query)
--echo # + 18 write (internal I_S)
SELECT * FROM t1 WHERE a = 1000000;
eval $get_handler_status_counts;
--echo # No matching partition, only internal I_S.
SELECT * FROM t1 PARTITION (pNeg) WHERE a = 100;
UNLOCK TABLES;
eval $get_handler_status_counts;
--echo # + 18 for unlock (same as lock above) (100 is not in pNeg, no match)
--echo # Test that EXPLAIN PARTITION works
--error ER_UNKNOWN_PARTITION
EXPLAIN PARTITIONS SELECT * FROM t1 PARTITION (pNonexistent);
EXPLAIN PARTITIONS SELECT * FROM t1 PARTITION (subp2);
FLUSH STATUS;
EXPLAIN PARTITIONS SELECT * FROM t1 PARTITION (subp2,pNeg) AS TableAlias;
eval $get_handler_status_counts;
--echo # 8 locks (1 ha_partition + 3 ha_innobase) x 2 (lock/unlock)
EXPLAIN PARTITIONS SELECT * FROM t1 PARTITION (subp3) AS TableAlias;
EXPLAIN PARTITIONS SELECT COUNT(*) FROM t1 PARTITION (`p10-99`);
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 1000000;
EXPLAIN PARTITIONS SELECT * FROM t1 PARTITION (pNeg) WHERE a = 100;
--echo # Test how it changes the alias/keywords/reserved words
--error ER_PARSE_ERROR
SELECT * FROM t1 PARTITION;
SELECT * FROM t1 `PARTITION`;
--error ER_PARSE_ERROR
SELECT * FROM t1 AS PARTITION;
SELECT * FROM t1 AS `PARTITION`;
--echo #
--echo # Test REPLACE
--echo #
FLUSH STATUS;
--error ER_ROW_DOES_NOT_MATCH_GIVEN_PARTITION_SET
REPLACE INTO t1 PARTITION (subp0) VALUES (-21, 'Should fail!');
eval $get_handler_status_counts;
--echo # 2 locks (1 ha_partition) x 2 (lock/unlock), Was 4 locks before WL4443
--echo # explicit pruning says part_id 0 and implicit pruning says part_id 1
--echo # so no partition will be locked!
--echo # 0 rollback (since no locked partition)
--echo # 17 writes (I_S internal)
FLUSH STATUS;
REPLACE INTO t1 PARTITION (subp1) VALUES (-21, 'Insert by REPLACE');
eval $get_handler_status_counts;
--echo # 1 commit
--echo # 4 locks (1 ha_partition + 1 ha_innobase) x 2 (lock/unlock)
--echo # 18 writes (17 I_S internal, 1 ha_innobase)
SELECT * FROM t1 PARTITION (pNeg);
FLUSH STATUS;
REPLACE INTO t1 PARTITION (subp1) VALUES (-21, 'REPLACEd by REPLACE');
eval $get_handler_status_counts;
--echo # 1 commit
--echo # 4 locks (1 ha_partition + 1 ha_innobase) x 2 (lock/unlock)
--echo # 2 read key (1 innobase_get_index when init the index + 1 index read
--echo # to get the position to update)
--echo # 1 update (updated one row, since there is no delete trigger, update
--echo # is used instead of delete+insert)
--echo # 18 write (17 from I_S, 1 for the failed insert)
SELECT * FROM t1 PARTITION (pNeg);
FLUSH STATUS;
LOCK TABLE t1 WRITE;
eval $get_handler_status_counts;
--echo # 1 commit
--echo # 9 locks
--echo # 17 write (internal I_S)
DELETE FROM t1 PARTITION(subp1) WHERE b = "REPLACEd by REPLACE";
eval $get_handler_status_counts;
--echo # + 1 commit
--echo # + 1 delete (one row deleted)
--echo # + 3 read key (1 innodb_get_index in records_in_range,
--echo # 1 innodb_get_index in index_init, 1 index_read in index_read_first)
--echo # + 1 read next (search for another row in secondary index)
--echo # + 19 rnd next (internal I_S)
--echo # + 18 write (internal I_S)
--error ER_ROW_DOES_NOT_MATCH_GIVEN_PARTITION_SET
REPLACE INTO t1 PARTITION (subp0) VALUES (-21, 'Should fail!');
eval $get_handler_status_counts;
--echo # Failed before start_stmt/execution.
--echo # + 19 rnd next (internal I_S)
--echo # 0 rollback (No partition had called start_stmt, all parts pruned)
--echo # + 18 write (internal I_S)
REPLACE INTO t1 PARTITION (pNeg) VALUES (-21, 'Insert by REPLACE');
eval $get_handler_status_counts;
--echo # + 1 commit
--echo # + 19 rnd next (internal I_S)
--echo # + 19 write (18 internal I_S + 1 real write)
REPLACE INTO t1 PARTITION (subp1) VALUES (-21, 'REPLACEd by REPLACE');
eval $get_handler_status_counts;
--echo # + 1 commit
--echo # + 2 read key (see non locked query)
--echo # + 19 rnd next (internal I_S)
--echo # + 1 update (see non locked query)
--echo # + 19 write (18 internal I_S + 1 failed write)
SELECT * FROM t1 PARTITION (subp1);
eval $get_handler_status_counts;
--echo # + 1 commit
--echo # + 1 read first
--echo # + 2 read key
--echo # + 3 read next
--echo # + 19 rnd next (internal I_S)
--echo # + 18 write (internal I_S)
UNLOCK TABLES;
eval $get_handler_status_counts;
--echo # + 9 locks
--echo # + 19 rnd next (internal I_S)
--echo # + 18 write (internal I_S)
--echo #
--echo # Test LOAD
--echo #
SELECT * FROM t1 PARTITION (pNeg, `p10-99`);
FLUSH STATUS;
SELECT * FROM t1 PARTITION (pNeg, `p10-99`) INTO OUTFILE 'loadtest.txt';
eval $get_handler_status_counts;
--echo # 1 commit
--echo # 10 locks (1 ha_partition + 4 ha_innobase) x 2 (lock/unlock)
--echo # 4 read first (for reading the first row in 4 partitions)
--echo # 8 read key (4 from read first + 4 for index init)
--echo # 5 read next (one after each row)
--echo # 17 write (internal I_S)
FLUSH STATUS;
ALTER TABLE t1 TRUNCATE PARTITION pNeg, `p10-99`;
eval $get_handler_status_counts;
--echo # 10 locks (table + 4 partition) x (lock + unlock)
SELECT * FROM t1 PARTITION (pNeg, `p10-99`);
FLUSH STATUS;
--error ER_ROW_DOES_NOT_MATCH_GIVEN_PARTITION_SET
LOAD DATA INFILE 'loadtest.txt' INTO TABLE t1 PARTITION (pNeg);
eval $get_handler_status_counts;
--echo # 6 locks (1 ha_partition + 2 ha_innobase) x 2 (lock+unlock)
--echo # 1 rollback
SELECT * FROM t1 PARTITION (pNeg, `p10-99`);
FLUSH STATUS;
LOAD DATA INFILE 'loadtest.txt' INTO TABLE t1 PARTITION (pNeg, subp4, subp5);
eval $get_handler_status_counts;
--echo # 10 lock (1 ha_partition + 4 ha_innobase) x 2 (lock + unlock)
ALTER TABLE t1 TRUNCATE PARTITION pNeg, `p10-99`;
FLUSH STATUS;
LOCK TABLE t1 WRITE;
eval $get_handler_status_counts;
--echo # 9 locks
--echo # 18 read key (ALTER forces table to be closed, see above for open)
LOAD DATA INFILE 'loadtest.txt' INTO TABLE t1 PARTITION (pNeg, `p10-99`);
eval $get_handler_status_counts;
--echo # + 23 write (18 internal I_S + 5 rows)
UNLOCK TABLES;
eval $get_handler_status_counts;
--echo # + 9 locks
--remove_file $MYSQLD_DATADIR/test/loadtest.txt
--echo #
--echo # Test UPDATE
--echo #
FLUSH STATUS;
UPDATE t1 PARTITION(subp0) SET b = concat(b, ', Updated');
eval $get_handler_status_counts;
--echo # 1 commit
--echo # 4 lock (1 ha_partition + 1 ha_innobase) x 2 (lock + unlock)
--echo # 1 read first (read first row, called from first rnd_next)
--echo # 2 read key (innobase_get_index from rnd_init +
--echo # read next row from second rnd_next)
--echo # 1 update (update the row)
# EXPLAIN PARTITIONS UPDATE t1 PARTITION(subp0) SET b = concat(b, ', Updated');
SELECT * FROM t1 PARTITION (subp0) ORDER BY a;
FLUSH STATUS;
UPDATE t1 PARTITION(subp0) SET b = concat(b, ', Updated2') WHERE a = -2;
eval $get_handler_status_counts;
--echo # 1 commit
--echo # 4 lock
--echo # 1 read key
--echo # 1 update
# EXPLAIN PARTITIONS UPDATE t1 PARTITION(subp0) SET b = concat(b, ', Updated2') WHERE a = -2;
FLUSH STATUS;
UPDATE t1 PARTITION(subp0) SET a = -4, b = concat(b, ', Updated from a = -2')
WHERE a = -2;
eval $get_handler_status_counts;
--echo # 1 commit
--echo # 4 lock
--echo # 2 read key - (2 index read)
--echo # 1 read rnd - rnd_pos
--echo # 1 update
# EXPLAIN PARTITIONS UPDATE t1 PARTITION(subp0) SET a = -4, b = concat(b, ', Updated from a = -2');
FLUSH STATUS;
UPDATE t1 PARTITION(subp0) SET b = concat(b, ', Updated2') WHERE a = 100;
eval $get_handler_status_counts;
--echo # Nothing, since impossible PARTITION+WHERE clause.
# EXPLAIN PARTITIONS UPDATE t1 PARTITION(subp0) SET b = concat(b, ', Updated2') WHERE a = 100;
FLUSH STATUS;
UPDATE t1 PARTITION(subp0) SET a = -2, b = concat(b, ', Updated from a = 100')
WHERE a = 100;
eval $get_handler_status_counts;
--echo # Nothing, since impossible PARTITION+WHERE clause.
# EXPLAIN PARTITIONS UPDATE t1 PARTITION(subp0)
# SET a = -2, b = concat(b, ', Updated from a = 100') WHERE a = 100;
FLUSH STATUS;
--error ER_ROW_DOES_NOT_MATCH_GIVEN_PARTITION_SET
UPDATE t1 PARTITION(`p100-99999`) SET a = -2, b = concat(b, ', Updated from a = 100')
WHERE a = 100;
eval $get_handler_status_counts;
--echo # 6 lock
--echo # 4 read key (1 index init + 1 index read + 1 rnd init + 1 rnd pos)
--echo # 1 read rnd (rnd pos)
--echo # 1 rollback
FLUSH STATUS;
--error ER_DUP_ENTRY,ER_DUP_KEY
UPDATE t1 PARTITION(`p100-99999`, pNeg) SET a = -4, b = concat(b, ', Updated from a = 100')
WHERE a = 100;
eval $get_handler_status_counts;
--echo # 10 locks
--echo # 4 read key
--echo # 1 read rnd
--echo # 1 rollback
--echo # 18 write (17 internal I_S + 1 failed insert)
FLUSH STATUS;
UPDATE t1 PARTITION(`p100-99999`, pNeg) SET a = -222, b = concat(b, ', Updated from a = 100')
WHERE a = 100;
eval $get_handler_status_counts;
--echo # 1 commit
--echo # 1 delete
--echo # 4 read key
--echo # 1 read rnd
--echo # 18 write (17 internal I_S + 1 insert)
SELECT * FROM t1 ORDER BY a;
--echo # Test of non matching partition (i.e ER_NO_PARTITION_FOUND)
FLUSH STATUS;
UPDATE t1 SET b = concat(b, ', Updated2') WHERE a = 1000000;
eval $get_handler_status_counts;
--echo # Nothing (no matching partition found)
FLUSH STATUS;
UPDATE t1 PARTITION (pNeg) SET b = concat(b, ', Updated2') WHERE a = 1000000;
eval $get_handler_status_counts;
--echo # Nothing (no matching partition found)
FLUSH STATUS;
LOCK TABLE t1 WRITE;
eval $get_handler_status_counts;
--echo # 9 locks
UPDATE t1 PARTITION (subp7) SET b = concat(b, ', Updated to 103'), a = 103 WHERE a = 101;
eval $get_handler_status_counts;
--echo # + 4 read key
--echo # + 1 read rnd
--echo # + 1 update
UPDATE t1 PARTITION (`p100-99999`) SET b = concat(b, ', Updated to 110'), a = 110 WHERE a = 103;
eval $get_handler_status_counts;
--echo # + 1 delete
--echo # + 4 read key
--echo # + 1 read rnd
--echo # + 19 write (18 internal I_S + 1 insert)
UNLOCK TABLES;
eval $get_handler_status_counts;
--echo + 9 locks
--echo #
--echo # Test DELETE
--echo #
SELECT * FROM t1 ORDER BY b, a;
FLUSH STATUS;
DELETE FROM t1 PARTITION (pNeg) WHERE a = -1;
eval $get_handler_status_counts;
--echo # 1 delete
--echo # 4 locks (pruning works!).
--echo # 1 read key (index read)
FLUSH STATUS;
DELETE FROM t1 PARTITION (subp1) WHERE b like '%subp1%';
eval $get_handler_status_counts;
--echo # 1 delete
--echo # 4 locks
--echo # 1 read first
--echo # 2 read key
--echo # 3 read rnd
FLUSH STATUS;
LOCK TABLE t1 WRITE;
eval $get_handler_status_counts;
--echo # 9 locks
DELETE FROM t1 PARTITION (subp1) WHERE b = 'p0-9:subp3';
eval $get_handler_status_counts;
--echo # + 3 read key (1 innodb_get_index in records_in_range
--echo # + 1 innobase_get_index in index_init + 1 index read)
DELETE FROM t1 PARTITION (`p0-9`) WHERE b = 'p0-9:subp3';
eval $get_handler_status_counts;
--echo # + 1 delete
--echo # + 6 read key (same as above, but for two subpartitions)
--echo # + 1 read next (read next after found row)
UNLOCK TABLES;
eval $get_handler_status_counts;
--echo # + 9 locks
--echo # Test multi-table DELETE
--echo # Can be expressed in two different ways.
CREATE TABLE t2 LIKE t1;
FLUSH STATUS;
INSERT INTO t2 PARTITION (`p10-99`, subp3, `p100-99999`) SELECT * FROM t1 PARTITION (subp3, `p10-99`, `p100-99999`);
eval $get_handler_status_counts;
--echo # 24 locks (2 table, 5 + 5 subpartitions lock/unlock)
FLUSH STATUS;
ALTER TABLE t2 TRUNCATE PARTITION `p10-99`, `p0-9`, `p100-99999`;
eval $get_handler_status_counts;
--echo # 14 locks (1 table, 6 subpartitions lock/unlock)
FLUSH STATUS;
--error ER_ROW_DOES_NOT_MATCH_GIVEN_PARTITION_SET
INSERT INTO t2 PARTITION (subp3) SELECT * FROM t1 PARTITION (subp3, `p10-99`, `p100-99999`);
eval $get_handler_status_counts;
--echo # 16 locks (2 tables, 1 + 5 subpartitions lock/unlock)
FLUSH STATUS;
INSERT IGNORE INTO t2 PARTITION (subp3) SELECT * FROM t1 PARTITION (subp3, `p10-99`, `p100-99999`);
eval $get_handler_status_counts;
--echo # 16 locks (2 tables, 1 + 5 subpartitions lock/unlock)
TRUNCATE TABLE t2;
FLUSH STATUS;
INSERT INTO t2 SELECT * FROM t1 PARTITION (subp3, `p10-99`, `p100-99999`);
eval $get_handler_status_counts;
--echo # 30 locks (2 table, 8 + 5 subpartitions lock/unlock)
FLUSH STATUS;
CREATE TABLE t3 SELECT * FROM t1 PARTITION (pNeg,subp3,`p100-99999`);
eval $get_handler_status_counts;
--echo # 14 locks (2 table, 5 subpartitions lock/unlock)
SHOW CREATE TABLE t1;
SELECT * FROM t1;
SHOW CREATE TABLE t2;
SELECT * FROM t2;
SHOW CREATE TABLE t3;
SELECT * FROM t3;
FLUSH STATUS;
--error ER_PARSE_ERROR
DELETE t1 PARTITION (pNeg), t3 FROM t1, t3
WHERE t1.a = t3.a AND t3.b = 'subp3';
eval $get_handler_status_counts;
--echo # Multi table delete without any matching rows
FLUSH STATUS;
DELETE t1, t2 FROM t1 PARTITION (pNeg), t3, t2 PARTITION (subp3)
WHERE t1.a = t3.a AND t3.b = 'subp3' AND t3.a = t2.a;
eval $get_handler_status_counts;
--echo # 12 locks (3 in t1, 1 in t3, 2 in t2) x 2 (lock + unlock)
--echo # 1 read first (first rnd_next in t2)
--echo # 4 read key (1 innodb_get_index in rnd_init in t2 + index read in t2
--echo # + 2 innodb_get_index in index_init in t1)
--echo # 3 read rnd next (3 rnd next in t2, 2 rows + 1 empty)
--echo # Multi table delete matching all rows in subp3 (2 rows in per table)
FLUSH STATUS;
DELETE FROM t2, t3 USING t2 PARTITION (`p0-9`), t3, t1 PARTITION (subp3)
WHERE t1.a = t3.a AND t3.b = 'subp3' AND t2.a = t1.a;
eval $get_handler_status_counts;
--echo # 4 delete (2 in t2 + 2 in t3)
--echo # 12 locks (3 in t2, 1 in t3, 2 in t1) x 2 (lock + unlock)
--echo # 3 read first (1 in t1 + 1 in t3 + 1 in t3, for second row in t1)
--echo # 17 read key (1 index_init in t1 + 1 read first in t1 +
--echo # 2 index_init in t2 + 1 index read in t2 +
--echo # 1 index_init in t3 + 1 index read in t3 +
--echo # 1 index read in t2 +
--echo # 1 index_init in t3 + 1 index read in t3 +
--echo # 2 index_init in t2 + 2 index read in t2 (from rnd_pos)
--echo # 1 index_init in t3 + 2 index read in t3 (from rnd_pos))
--echo # 2 read next (1 in t1 + 1 in t1, second row)
--echo # 4 read rnd (position on 4 found rows to delete)
--echo # 16 rnd next (8 in t3 + 8 in t3, for second row)
SELECT * FROM t1 ORDER BY a;
SELECT * FROM t2 ORDER BY a;
SELECT * FROM t3 ORDER BY a;
--echo # Test TRUNCATE TABLE (should fail, since one should use
--echo # ALTER TABLE ... TRUNCATE PARTITION instead)
--error ER_PARSE_ERROR
TRUNCATE TABLE t1 PARTITION(`p10-99`);
--echo # Test of locking in TRUNCATE PARTITION
--echo # Note that it does not support truncating subpartitions
FLUSH STATUS;
ALTER TABLE t1 TRUNCATE PARTITION pNeg;
eval $get_handler_status_counts;
--echo # 6 locks (lock/unlock two subpartitions + table)
--echo # Test on non partitioned table
--error ER_PARTITION_CLAUSE_ON_NONPARTITIONED
SELECT * FROM t3 PARTITION (pNeg);
DROP TABLE t1, t2, t3;
#
--echo # Test from superseeded WL# 2682
# Partition select tests.
#
--disable_warnings
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
--enable_warnings
CREATE TABLE `t1` (
`id` int(11) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
PARTITION BY RANGE (id) (
PARTITION p0 VALUES LESS THAN (6) ENGINE = MyISAM,
PARTITION p1 VALUES LESS THAN (11) ENGINE = MyISAM,
PARTITION p2 VALUES LESS THAN (16) ENGINE = MyISAM,
PARTITION p3 VALUES LESS THAN (21) ENGINE = MyISAM);
INSERT INTO `t1` VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10),
(11), (12), (13), (14), (15), (16), (17), (18), (19), (20);
SELECT * FROM t1;
SELECT * FROM t1 PARTITION (p0);
SELECT * FROM t1 PARTITION (p1);
SELECT * FROM t1 PARTITION (p2);
SELECT * FROM t1 PARTITION (p3);
SELECT * FROM t1 PARTITION (p3) WHERE id = 2;
--error ER_UNKNOWN_PARTITION
SELECT * FROM t1 PARTITION (foo);
# now try indexes
CREATE TABLE `t2` (
`id` int(11) NOT NULL DEFAULT 0,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
PARTITION BY RANGE (id) (
PARTITION p0 VALUES LESS THAN (6) ENGINE = MyISAM,
PARTITION p1 VALUES LESS THAN (11) ENGINE = MyISAM,
PARTITION p2 VALUES LESS THAN (16) ENGINE = MyISAM,
PARTITION p3 VALUES LESS THAN (21) ENGINE = MyISAM);
INSERT INTO `t2` VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10),
(11), (12), (13), (14), (15), (16), (17), (18), (19), (20);
SELECT * FROM t2;
SELECT * FROM t2 PARTITION (p0);
SELECT * FROM t2 PARTITION (p1);
SELECT * FROM t2 PARTITION (p2);
SELECT * FROM t2 PARTITION (p3);
SELECT * FROM t2 PARTITION (p3) ORDER BY id;
SELECT * FROM t2 PARTITION (p3) WHERE id = 2;
--error ER_UNKNOWN_PARTITION
SELECT * FROM t2 PARTITION (foo);
CREATE TABLE `t3` (
`id` int(32) default NULL,
`name` varchar(32) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
PARTITION BY LIST (id) (
PARTITION p0 VALUES IN (1,3,5,7),
PARTITION p1 VALUES IN (0,2,4,6,8),
PARTITION p2 VALUES IN (9,10,11,12,13)
);
INSERT INTO `t3` VALUES (1,'first'), (3,'third'),(5,'fifth'),(7,'seventh'),(0,'zilch'),(2,'second'),(4,'fourth'),(6,'sixth'),(8,'eighth'),(9,'ninth'),(10,'tenth'),(11,'eleventh'),(12,'twelfth'),(13,'thirteenth');
SELECT * FROM `t3`;
SELECT * FROM `t3` PARTITION (p0);
SELECT * FROM `t3` PARTITION (p1);
SELECT * FROM `t3` PARTITION (p2);
SELECT * FROM `t3` PARTITION (p2) ORDER BY id;
DROP TABLE IF EXISTS `t4`;
CREATE TABLE `t4` (
`id` int(32) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 PARTITION BY HASH (id) ;
INSERT INTO `t4` SELECT * FROM `t2`;
INSERT INTO `t4` SELECT * FROM `t2` ORDER BY id;
# not sure how to do this, since names could be anything
#SELECT * FROM `t4` PARTITION (p0);
#SELECT * FROM `t4` PARTITION (p1);
#SELECT * FROM `t4` PARTITION (p2);
#SELECT * FROM `t4` PARTITION (p3);
#SELECT * FROM `t4` PARTITION (p3) ORDER BY id;
CREATE TABLE `t5` (
id int(32),
name varchar(64),
purchased date)
PARTITION BY RANGE( YEAR(purchased) )
SUBPARTITION BY HASH( TO_DAYS(purchased) ) (
PARTITION p0 VALUES LESS THAN (1990) (
SUBPARTITION s0,
SUBPARTITION s1
),
PARTITION p1 VALUES LESS THAN (2000) (
SUBPARTITION s2,
SUBPARTITION s3
),
PARTITION p2 VALUES LESS THAN MAXVALUE (
SUBPARTITION s4,
SUBPARTITION s5
)
);
INSERT INTO `t5` VALUES (1, 'aaaaaaa', '2006-01-05 00:00:00');
INSERT INTO `t5` VALUES (2, 'bbbbbbb', '2005-08-05 00:00:00');
INSERT INTO `t5` VALUES (3, 'ccccccc', '1985-08-07 00:00:00');
INSERT INTO `t5` VALUES (4, 'ddddddd', '2000-01-01 00:00:00');
INSERT INTO `t5` VALUES (5, 'eeeeeee', '1999-12-01 00:00:00');
INSERT INTO `t5` VALUES (6, 'fffffff', '2003-11-12 00:00:00');
INSERT INTO `t5` VALUES (7, 'ggggggg', '1990-01-05 00:00:00');
INSERT INTO `t5` VALUES (8, 'hhhhhhh', '1978-01-05 00:00:00');
INSERT INTO `t5` VALUES (9, 'iiiiiii', '1979-01-05 00:00:00');
INSERT INTO `t5` VALUES (10, 'jjjjjjj', '1992-01-05 00:00:00');
INSERT INTO `t5` VALUES (11, 'kkkkkkk', '1993-01-05 00:00:00');
INSERT INTO `t5` VALUES (12, 'mmmmmmm', '1994-01-05 00:00:00');
INSERT INTO `t5` VALUES (13, 'nnnnnnn', '1989-01-05 00:00:00');
INSERT INTO `t5` VALUES (14, 'ooooooo', '1983-12-05 00:00:00');
INSERT INTO `t5` VALUES (15, 'ppppppp', '1986-06-05 00:00:00');
INSERT INTO `t5` VALUES (16, 'qqqqqqq', '1974-04-11 00:00:00');
INSERT INTO `t5` VALUES (17, 'qqqqqqq', '1960-03-15 00:00:00');
INSERT INTO `t5` VALUES (18, 'sssssss', '1950-09-23 00:00:00');
INSERT INTO `t5` VALUES (19, 'ttttttt', '1999-08-02 00:00:00');
INSERT INTO `t5` VALUES (20, 'uuuuuuu', '1994-05-28 00:00:00');
SELECT * FROM `t5`;
SELECT * FROM `t5` PARTITION(p0) ORDER BY id;
SELECT * FROM `t5` PARTITION(s0) ORDER BY id;
SELECT * FROM `t5` PARTITION(s1) ORDER BY id;
SELECT * FROM `t5` PARTITION(p1) ORDER BY id;
SELECT * FROM `t5` PARTITION(s2) ORDER BY id;
SELECT * FROM `t5` PARTITION(s3) ORDER BY id;
SELECT * FROM `t5` PARTITION(p2) ORDER BY id;
SELECT * FROM `t5` PARTITION(s4) ORDER BY id;
SELECT * FROM `t5` PARTITION(s5) ORDER BY id;
--disable_warnings
drop table t1,t2,t3,t4,t5;
--enable_warnings
# Tests for working together with partition pruning.
create table t1 (a int) partition by hash(a) partitions 3;
insert into t1 values(1),(2),(3);
explain partitions select * from t1 where a=1;
explain partitions select * from t1 partition (p1) where a=1;
explain partitions select * from t1 partition (p1) where a=1 or a=2;
explain partitions select * from t1 partition (p2) where a=1;
drop table t1;
--echo #
--echo # Bug#59864: Crash if table empty: DELETE FROM t2 PARTITION (subp3).
--echo #
CREATE TABLE t1
(a INT NOT NULL,
b varchar (64),
INDEX (b,a),
PRIMARY KEY (a))
PARTITION BY RANGE (a)
SUBPARTITION BY HASH (a) SUBPARTITIONS 3
(PARTITION pNeg VALUES LESS THAN (0)
(SUBPARTITION subp0,
SUBPARTITION subp1,
SUBPARTITION subp2),
PARTITION `p0-29` VALUES LESS THAN (30)
(SUBPARTITION subp3,
SUBPARTITION subp4,
SUBPARTITION subp5),
PARTITION `p30-299` VALUES LESS THAN (300)
(SUBPARTITION subp6,
SUBPARTITION subp7,
SUBPARTITION subp8),
PARTITION `p300-2999` VALUES LESS THAN (3000)
(SUBPARTITION subp9,
SUBPARTITION subp10,
SUBPARTITION subp11),
PARTITION `p3000-299999` VALUES LESS THAN (300000)
(SUBPARTITION subp12,
SUBPARTITION subp13,
SUBPARTITION subp14));
eval SHOW CREATE TABLE t1;
INSERT INTO t1 VALUES (-9, "negative nine"), (-8, "-8"), (-7, "-7"), (-6, "-6"), (-5, "-5"), (-4, "-4"), (-3, "-3"), (-2, "-2"), (-1, "-1");
INSERT INTO t1 VALUES (9, "nine"), (8, "8"), (7, "7"), (6, "6"), (5, "5"), (4, "4"), (3, "3"), (2, "2"), (1, "1");
INSERT INTO t1 VALUES (39, "Thirty nine"), (38, "38"), (37, "37"), (36, "36"), (35, "35"), (34, "34"), (33, "33"), (32, "32"), (31, "31");
INSERT INTO t1 VALUES (339, "Three hundred thirty nine"), (338, "338"), (337, "337"), (336, "336"), (335, "335"), (334, "334"), (333, "333"), (332, "332"), (331, "331");
INSERT INTO t1 VALUES (3339, "Three thousand three hundred thirty nine"), (3338, "3338"), (3337, "3337"), (3336, "3336"), (3335, "3335"), (3334, "3334"), (3333, "3333"), (3332, "3332"), (3331, "3331");
--sorted_result
SELECT * FROM t1;
--sorted_result
SELECT * FROM t1 PARTITION (subp3);
DELETE FROM t1 PARTITION (subp3);
--sorted_result
SELECT * FROM t1;
--sorted_result
SELECT * FROM t1 PARTITION (subp3);
DELETE FROM t1 PARTITION (`p0-29`);
--sorted_result
SELECT * FROM t1;
--sorted_result
SELECT * FROM t1 PARTITION (`p0-29`);
ALTER TABLE t1 PARTITION BY HASH (a) PARTITIONS 3;
DELETE FROM t1 PARTITION (p2);
--sorted_result
SELECT * FROM t1;
--sorted_result
SELECT * FROM t1 PARTITION (p2);
DROP TABLE t1;
--echo #
--echo # Test explicit partition selection on a non partitioned temp table
--echo #
CREATE TEMPORARY TABLE t1 (a INT);
--error ER_PARTITION_CLAUSE_ON_NONPARTITIONED
SELECT * FROM t1 PARTITION(pNonexisting);
DROP TEMPORARY TABLE t1;
--echo #
--echo # Test CREATE LIKE does not take PARTITION clause
--echo #
CREATE TABLE t1 (a INT) PARTITION BY HASH (a) PARTITIONS 3;
--error ER_PARSE_ERROR
CREATE TABLE t2 LIKE t1 PARTITION (p0, p2);
DROP TABLE t1;
SET @@default_storage_engine = @old_default_storage_engine;
......@@ -3969,7 +3969,6 @@ bool prune_partitions(THD *thd, TABLE *table, Item *pprune_cond)
thd->no_errors=0;
thd->mem_root= range_par->old_root;
free_root(&alloc,MYF(0)); // Return memory & allocator
DBUG_RETURN(retval);
/*
Must be a subset of the locked partitions.
lock_partitions contains the partitions marked by explicit partition
......@@ -3993,7 +3992,11 @@ bool prune_partitions(THD *thd, TABLE *table, Item *pprune_cond)
&prune_param.part_info->read_partitions);
}
if (bitmap_is_clear_all(&(prune_param.part_info->read_partitions)))
{
table->all_partitions_pruned_away= true;
retval= TRUE;
}
DBUG_RETURN(retval);
}
......
......@@ -23161,6 +23161,22 @@ void TABLE_LIST::print(THD *thd, table_map eliminated_tables, String *str,
append_identifier(thd, str, table_name, table_name_length);
cmp_name= table_name;
}
#ifdef WITH_PARTITION_STORAGE_ENGINE
if (partition_names && partition_names->elements)
{
int i, num_parts= partition_names->elements;
List_iterator<String> name_it(*(partition_names));
str->append(STRING_WITH_LEN(" PARTITION ("));
for (i= 1; i <= num_parts; i++)
{
String *name= name_it++;
append_identifier(thd, str, name->c_ptr(), name->length());
if (i != num_parts)
str->append(',');
}
str->append(')');
}
#endif /* WITH_PARTITION_STORAGE_ENGINE */
}
if (my_strcasecmp(table_alias_charset, cmp_name, alias))
{
......
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