1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
--source include/not_embedded.inc
--source include/have_partition.inc
set @@global.connect_exact_info=ON;
#
# These will be used by the t1 table partition table
#
CREATE TABLE xt1 (
id INT KEY NOT NULL,
msg VARCHAR(32))
ENGINE=MyISAM;
INSERT INTO xt1 VALUES(4, 'four'),(7,'seven'),(1,'one'),(8,'eight');
SELECT * FROM xt1;
CREATE TABLE xt2 (
id INT KEY NOT NULL,
msg VARCHAR(32));
INSERT INTO xt2 VALUES(10,'ten'),(40,'forty'),(11,'eleven'),(35,'thirty five');
SELECT * FROM xt2;
CREATE TABLE xt3 (
id INT KEY NOT NULL,
msg VARCHAR(32))
ENGINE=CONNECT TABLE_TYPE=CSV AVG_ROW_LENGTH=10;
INSERT INTO xt3 VALUES(60,'sixty'),(81,'eighty one'),(72,'seventy two');
SELECT * FROM xt3;
#
# Based on PROXY the table is not indexable
#
CREATE TABLE t1 (
id INT NOT NULL,
msg VARCHAR(32))
ENGINE=CONNECT TABLE_TYPE=PROXY TABNAME='xt%s'
PARTITION BY RANGE COLUMNS(id) (
PARTITION `1` VALUES LESS THAN(10),
PARTITION `2` VALUES LESS THAN(50),
PARTITION `3` VALUES LESS THAN(MAXVALUE));
SELECT partition_name, table_rows FROM information_schema.partitions WHERE table_name = 't1';
SELECT * FROM t1;
DELETE FROM t1;
--error ER_UNKNOWN_ERROR
ALTER TABLE t1 ADD INDEX XID(id);
INSERT INTO t1 VALUES(4, 'four');
INSERT INTO t1 VALUES(7,'seven'),(10,'ten'),(40,'forty'),(60,'sixty'),(81,'eighty one');
INSERT INTO t1 VALUES(72,'seventy two'),(11,'eleven'),(1,'one'),(35,'thirty five'),(8,'eight');
SELECT partition_name, table_rows FROM information_schema.partitions WHERE table_name = 't1';
SELECT * FROM t1;
EXPLAIN PARTITIONS
SELECT * FROM t1 WHERE id = 81;
DELETE FROM t1;
DROP TABLE t1;
#
# Based on MYSQL the table is indexable
#
CREATE TABLE t1 (
id INT KEY NOT NULL,
msg VARCHAR(32))
ENGINE=CONNECT TABLE_TYPE=MYSQL TABNAME='xt%s'
PARTITION BY RANGE COLUMNS(id) (
PARTITION `1` VALUES LESS THAN(10),
PARTITION `2` VALUES LESS THAN(50),
PARTITION `3` VALUES LESS THAN(MAXVALUE));
SHOW INDEX FROM t1;
INSERT INTO t1 VALUES(4, 'four');
INSERT INTO t1 VALUES(40, 'forty');
INSERT INTO t1 VALUES(72,'seventy two');
INSERT INTO t1 VALUES(7,'seven'),(10,'ten'),(60,'sixty'),(81,'eighty one'),(11,'eleven'),(1,'one'),(35,'thirty five'),(8,'eight');
SELECT partition_name, table_rows FROM information_schema.partitions WHERE table_name = 't1';
SELECT * FROM t1;
EXPLAIN PARTITIONS SELECT * FROM t1 WHERE id = 81;
SELECT * FROM t1 WHERE id = 7;
SELECT * FROM t1 WHERE id = 35;
UPDATE t1 SET msg = 'number' WHERE id in (60,72);
UPDATE t1 SET msg = 'soixante' WHERE id = 60;
SELECT * FROM t1 WHERE id > 50;
UPDATE t1 SET msg = 'big' WHERE id > 50;
UPDATE t1 SET msg = 'sept' WHERE id = 7;
SELECT * FROM t1;
DELETE FROM t1 WHERE id in (60,72);
SELECT * FROM t1;
DROP TABLE t1;
#
# Using a connection string
#
CREATE TABLE t1 (
id INT KEY NOT NULL,
msg VARCHAR(32))
ENGINE=CONNECT TABLE_TYPE=MYSQL
OPTION_LIST='connect=mysql://root@localhost/test/xt%s'
PARTITION BY RANGE COLUMNS(id) (
PARTITION `1` VALUES LESS THAN(10),
PARTITION `2` VALUES LESS THAN(50),
PARTITION `3` VALUES LESS THAN(MAXVALUE));
SELECT * FROM t1;
DROP TABLE t1;
DROP TABLE xt1;
DROP TABLE xt2;
DROP TABLE xt3;
#
# Clean up
#
set @@global.connect_exact_info=OFF;
|
