mirror of
https://github.com/MariaDB/server.git
synced 2025-01-20 22:12:30 +01:00
2bd3c8fdcc
Before this fix, the command SHOW ENGINE <name> STATUS would: - print a warning if the engine name is unknown, - proceed and implement the same behavior as SHOW ENGINE ALL STATUS, and list the status of all the storage engines registered. In particular, this behavior caused confusion about the command : SHOW ENGINE MUTEX STATUS, which as a side effect would print the status of the innodb engine when that engine is registered. Also, before this fix, every time an unknown engine name was substituted by the default engine (which happen unless SQL_MODE NO_ENGINE_SUBSTITUTION is set), a malformed warning was raised. For example, the command ALTER TABLE T1 ENGINE = X would print : Warnings: Error 1286 Unknown table engine 'X' With this fix: SHOW ENGINE <name> STATUS|LOGS|MUTEX always fails with an error when the engine <name> is unknown. For other commands, warnings about unknown engines are raised as: Warnings: Warning 1286 Unknown table engine 'X' In other words, engine substitution never affect the SHOW ENGINE command, since this would lead to very confusing results.
475 lines
15 KiB
Text
475 lines
15 KiB
Text
DROP TABLE IF EXISTS t1;
|
|
CREATE LOGFILE GROUP lg1
|
|
ADD UNDOFILE 'undofile.dat'
|
|
INITIAL_SIZE 16M
|
|
UNDO_BUFFER_SIZE = 1M
|
|
ENGINE=MYISAM;
|
|
Warnings:
|
|
Error 1466 Table storage engine 'MyISAM' does not support the create option 'TABLESPACE or LOGFILE GROUP'
|
|
ALTER LOGFILE GROUP lg1
|
|
ADD UNDOFILE 'undofile02.dat'
|
|
INITIAL_SIZE = 4M
|
|
ENGINE=XYZ;
|
|
Warnings:
|
|
Warning 1286 Unknown table engine 'XYZ'
|
|
Error 1466 Table storage engine 'MyISAM' does not support the create option 'TABLESPACE or LOGFILE GROUP'
|
|
CREATE TABLESPACE ts1
|
|
ADD DATAFILE 'datafile.dat'
|
|
USE LOGFILE GROUP lg1
|
|
INITIAL_SIZE 12M;
|
|
Warnings:
|
|
Error 1466 Table storage engine 'MyISAM' does not support the create option 'TABLESPACE or LOGFILE GROUP'
|
|
set storage_engine=ndb;
|
|
CREATE LOGFILE GROUP lg1
|
|
ADD UNDOFILE 'undofile.dat'
|
|
INITIAL_SIZE 16M
|
|
UNDO_BUFFER_SIZE = 1M;
|
|
ALTER LOGFILE GROUP lg1
|
|
ADD UNDOFILE 'undofile02.dat'
|
|
INITIAL_SIZE = 4M
|
|
ENGINE=NDB;
|
|
set storage_engine=myisam;
|
|
CREATE TABLESPACE ts1
|
|
ADD DATAFILE 'datafile.dat'
|
|
USE LOGFILE GROUP lg1
|
|
INITIAL_SIZE 12M
|
|
ENGINE NDB;
|
|
ALTER TABLESPACE ts1
|
|
ADD DATAFILE 'datafile02.dat'
|
|
INITIAL_SIZE = 4M
|
|
ENGINE=NDB;
|
|
CREATE TABLE t1
|
|
(pk1 INT NOT NULL PRIMARY KEY, b INT NOT NULL, c INT NOT NULL)
|
|
TABLESPACE ts1 STORAGE DISK
|
|
ENGINE=NDB;
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`pk1` int(11) NOT NULL,
|
|
`b` int(11) NOT NULL,
|
|
`c` int(11) NOT NULL,
|
|
PRIMARY KEY (`pk1`)
|
|
) /*!50100 TABLESPACE ts1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
|
|
INSERT INTO t1 VALUES (0, 0, 0);
|
|
SELECT * FROM t1;
|
|
pk1 b c
|
|
0 0 0
|
|
INSERT INTO t1 VALUES
|
|
(1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
|
|
(6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10),
|
|
(11,11,11),(12,12,12),(13,13,13),(14,14,14),(15,15,15),
|
|
(16,16,16),(17,17,17),(18,18,18),(19,19,19),(20,20,20),
|
|
(21,21,21),(22,22,22),(23,23,23),(24,24,24),(25,25,25),
|
|
(26,26,26),(27,27,27),(28,28,28),(29,29,29),(30,30,30),
|
|
(31,31,31),(32,32,32),(33,33,33),(34,34,34),(35,35,35),
|
|
(36,36,36),(37,37,37),(38,38,38),(39,39,39),(40,40,40),
|
|
(41,41,41),(42,42,42),(43,43,43),(44,44,44),(45,45,45),
|
|
(46,46,46),(47,47,47),(48,48,48),(49,49,49),(50,50,50),
|
|
(51,51,51),(52,52,52),(53,53,53),(54,54,54),(55,55,55),
|
|
(56,56,56),(57,57,57),(58,58,58),(59,59,59),(60,60,60),
|
|
(61,61,61),(62,62,62),(63,63,63),(64,64,64),(65,65,65),
|
|
(66,66,66),(67,67,67),(68,68,68),(69,69,69),(70,70,70),
|
|
(71,71,71),(72,72,72),(73,73,73),(74,74,74),(75,75,75),
|
|
(76,76,76),(77,77,77),(78,78,78),(79,79,79),(80,80,80),
|
|
(81,81,81),(82,82,82),(83,83,83),(84,84,84),(85,85,85),
|
|
(86,86,86),(87,87,87),(88,88,88),(89,89,89),(90,90,90),
|
|
(91,91,91),(92,92,92),(93,93,93),(94,94,94),(95,95,95),
|
|
(96,96,96),(97,97,97),(98,98,98),(99,99,99),(100,100,100),
|
|
(101,101,101),(102,102,102),(103,103,103),(104,104,104),(105,105,105),
|
|
(106,106,106),(107,107,107),(108,108,108),(109,109,109),(110,110,110),
|
|
(111,111,111),(112,112,112),(113,113,113),(114,114,114),(115,115,115),
|
|
(116,116,116),(117,117,117),(118,118,118),(119,119,119),(120,120,120),
|
|
(121,121,121),(122,122,122),(123,123,123),(124,124,124),(125,125,125),
|
|
(126,126,126),(127,127,127),(128,128,128),(129,129,129),(130,130,130),
|
|
(131,131,131),(132,132,132),(133,133,133),(134,134,134),(135,135,135),
|
|
(136,136,136),(137,137,137),(138,138,138),(139,139,139),(140,140,140),
|
|
(141,141,141),(142,142,142),(143,143,143),(144,144,144),(145,145,145),
|
|
(146,146,146),(147,147,147),(148,148,148),(149,149,149),(150,150,150),
|
|
(151,151,151),(152,152,152),(153,153,153),(154,154,154),(155,155,155),
|
|
(156,156,156),(157,157,157),(158,158,158),(159,159,159),(160,160,160),
|
|
(161,161,161),(162,162,162),(163,163,163),(164,164,164),(165,165,165),
|
|
(166,166,166),(167,167,167),(168,168,168),(169,169,169),(170,170,170),
|
|
(171,171,171),(172,172,172),(173,173,173),(174,174,174),(175,175,175),
|
|
(176,176,176),(177,177,177),(178,178,178),(179,179,179),(180,180,180),
|
|
(181,181,181),(182,182,182),(183,183,183),(184,184,184),(185,185,185),
|
|
(186,186,186),(187,187,187),(188,188,188),(189,189,189),(190,190,190),
|
|
(191,191,191),(192,192,192),(193,193,193),(194,194,194),(195,195,195),
|
|
(196,196,196),(197,197,197),(198,198,198),(199,199,199),(200,200,200),
|
|
(201,201,201),(202,202,202),(203,203,203),(204,204,204),(205,205,205),
|
|
(206,206,206),(207,207,207),(208,208,208),(209,209,209),(210,210,210),
|
|
(211,211,211),(212,212,212),(213,213,213),(214,214,214),(215,215,215),
|
|
(216,216,216),(217,217,217),(218,218,218),(219,219,219),(220,220,220),
|
|
(221,221,221),(222,222,222),(223,223,223),(224,224,224),(225,225,225),
|
|
(226,226,226),(227,227,227),(228,228,228),(229,229,229),(230,230,230),
|
|
(231,231,231),(232,232,232),(233,233,233),(234,234,234),(235,235,235),
|
|
(236,236,236),(237,237,237),(238,238,238),(239,239,239),(240,240,240),
|
|
(241,241,241),(242,242,242),(243,243,243),(244,244,244),(245,245,245),
|
|
(246,246,246),(247,247,247),(248,248,248),(249,249,249),(250,250,250),
|
|
(251,251,251),(252,252,252),(253,253,253),(254,254,254),(255,255,255),
|
|
(256,256,256),(257,257,257),(258,258,258),(259,259,259),(260,260,260),
|
|
(261,261,261),(262,262,262),(263,263,263),(264,264,264),(265,265,265),
|
|
(266,266,266),(267,267,267),(268,268,268),(269,269,269),(270,270,270),
|
|
(271,271,271),(272,272,272),(273,273,273),(274,274,274),(275,275,275),
|
|
(276,276,276),(277,277,277),(278,278,278),(279,279,279),(280,280,280),
|
|
(281,281,281),(282,282,282),(283,283,283),(284,284,284),(285,285,285),
|
|
(286,286,286),(287,287,287),(288,288,288),(289,289,289),(290,290,290),
|
|
(291,291,291),(292,292,292),(293,293,293),(294,294,294),(295,295,295),
|
|
(296,296,296),(297,297,297),(298,298,298),(299,299,299),(300,300,300),
|
|
(301,301,301),(302,302,302),(303,303,303),(304,304,304),(305,305,305),
|
|
(306,306,306),(307,307,307),(308,308,308),(309,309,309),(310,310,310),
|
|
(311,311,311),(312,312,312),(313,313,313),(314,314,314),(315,315,315),
|
|
(316,316,316),(317,317,317),(318,318,318),(319,319,319),(320,320,320),
|
|
(321,321,321),(322,322,322),(323,323,323),(324,324,324),(325,325,325),
|
|
(326,326,326),(327,327,327),(328,328,328),(329,329,329),(330,330,330),
|
|
(331,331,331),(332,332,332),(333,333,333),(334,334,334),(335,335,335),
|
|
(336,336,336),(337,337,337),(338,338,338),(339,339,339),(340,340,340),
|
|
(341,341,341),(342,342,342),(343,343,343),(344,344,344),(345,345,345),
|
|
(346,346,346),(347,347,347),(348,348,348),(349,349,349),(350,350,350),
|
|
(351,351,351),(352,352,352),(353,353,353),(354,354,354),(355,355,355),
|
|
(356,356,356),(357,357,357),(358,358,358),(359,359,359),(360,360,360),
|
|
(361,361,361),(362,362,362),(363,363,363),(364,364,364),(365,365,365),
|
|
(366,366,366),(367,367,367),(368,368,368),(369,369,369),(370,370,370),
|
|
(371,371,371),(372,372,372),(373,373,373),(374,374,374),(375,375,375),
|
|
(376,376,376),(377,377,377),(378,378,378),(379,379,379),(380,380,380),
|
|
(381,381,381),(382,382,382),(383,383,383),(384,384,384),(385,385,385),
|
|
(386,386,386),(387,387,387),(388,388,388),(389,389,389),(390,390,390),
|
|
(391,391,391),(392,392,392),(393,393,393),(394,394,394),(395,395,395),
|
|
(396,396,396),(397,397,397),(398,398,398),(399,399,399),(400,400,400),
|
|
(401,401,401),(402,402,402),(403,403,403),(404,404,404),(405,405,405),
|
|
(406,406,406),(407,407,407),(408,408,408),(409,409,409),(410,410,410),
|
|
(411,411,411),(412,412,412),(413,413,413),(414,414,414),(415,415,415),
|
|
(416,416,416),(417,417,417),(418,418,418),(419,419,419),(420,420,420),
|
|
(421,421,421),(422,422,422),(423,423,423),(424,424,424),(425,425,425),
|
|
(426,426,426),(427,427,427),(428,428,428),(429,429,429),(430,430,430),
|
|
(431,431,431),(432,432,432),(433,433,433),(434,434,434),(435,435,435),
|
|
(436,436,436),(437,437,437),(438,438,438),(439,439,439),(440,440,440),
|
|
(441,441,441),(442,442,442),(443,443,443),(444,444,444),(445,445,445),
|
|
(446,446,446),(447,447,447),(448,448,448),(449,449,449),(450,450,450),
|
|
(451,451,451),(452,452,452),(453,453,453),(454,454,454),(455,455,455),
|
|
(456,456,456),(457,457,457),(458,458,458),(459,459,459),(460,460,460),
|
|
(461,461,461),(462,462,462),(463,463,463),(464,464,464),(465,465,465),
|
|
(466,466,466),(467,467,467),(468,468,468),(469,469,469),(470,470,470),
|
|
(471,471,471),(472,472,472),(473,473,473),(474,474,474),(475,475,475),
|
|
(476,476,476),(477,477,477),(478,478,478),(479,479,479),(480,480,480),
|
|
(481,481,481),(482,482,482),(483,483,483),(484,484,484),(485,485,485),
|
|
(486,486,486),(487,487,487),(488,488,488),(489,489,489),(490,490,490),
|
|
(491,491,491),(492,492,492),(493,493,493),(494,494,494),(495,495,495),
|
|
(496,496,496),(497,497,497),(498,498,498),(499,499,499),(500, 500, 500);
|
|
SELECT COUNT(*) FROM t1;
|
|
COUNT(*)
|
|
501
|
|
CREATE LOGFILE GROUP lg2
|
|
ADD UNDOFILE 'x.dat'
|
|
INITIAL_SIZE 10y
|
|
ENGINE = NDB;
|
|
ERROR HY000: A size parameter was incorrectly specified, either number or on the form 10M
|
|
CREATE LOGFILE GROUP lg2
|
|
ADD UNDOFILE 'x.dat'
|
|
INITIAL_SIZE 10MB
|
|
ENGINE = NDB;
|
|
ERROR HY000: A size parameter was incorrectly specified, either number or on the form 10M
|
|
CREATE LOGFILE GROUP lg2
|
|
ADD UNDOFILE 'x.dat'
|
|
INITIAL_SIZE 10 MB
|
|
ENGINE = NDB;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'MB
|
|
ENGINE = NDB' at line 3
|
|
CREATE LOGFILE GROUP lg2
|
|
ADD UNDOFILE 'x.dat'
|
|
INITIAL_SIZE 10 M
|
|
ENGINE = NDB;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'M
|
|
ENGINE = NDB' at line 3
|
|
CREATE LOGFILE GROUP lg2
|
|
ADD UNDOFILE 'x.dat'
|
|
INITIAL_SIZE 1000000000000K
|
|
ENGINE = NDB;
|
|
ERROR HY000: The size number was correct but we don't allow the digit part to be more than 2 billion
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1 (a INT PRIMARY KEY, b CHAR(4) NOT NULL, c CHAR(4) NOT NULL, KEY(b)) TABLESPACE ts1 STORAGE DISK ENGINE = NDB;
|
|
INSERT INTO t1 VALUES (1,'1','1'), (2,'2','2'), (3,'3','3');
|
|
BEGIN;
|
|
UPDATE t1 SET b = '2' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
2
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 2 1
|
|
UPDATE t1 SET c = '2' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
2
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 2 2
|
|
UPDATE t1 SET b = '3' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
3
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 3 2
|
|
COMMIT;
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 3 2
|
|
2 2 2
|
|
3 3 3
|
|
BEGIN;
|
|
UPDATE t1 SET c = '3' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
3
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 3 3
|
|
UPDATE t1 SET b = '4' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
4
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 4 3
|
|
UPDATE t1 SET c = '4' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
4
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 4 4
|
|
COMMIT;
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 4 4
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET b = '5' WHERE a = 1;
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 5 4
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET b = '6' WHERE b = '5';
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 6 4
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET b = '7'WHERE c = '4';
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 7 4
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET c = '5' WHERE a = 1;
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 7 5
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET c = '6' WHERE b = '7';
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 7 6
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET c = '7' WHERE c = '6';
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 7 7
|
|
2 2 2
|
|
3 3 3
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1 (a INT PRIMARY KEY, b VARCHAR(4) NOT NULL, c CHAR(4) NOT NULL, KEY(b)) TABLESPACE ts1 STORAGE DISK ENGINE NDB;
|
|
INSERT INTO t1 VALUE (1,'1','1'), (2,'2','2'), (3,'3','3');
|
|
BEGIN;
|
|
UPDATE t1 SET b = '2' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
2
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 2 1
|
|
UPDATE t1 SET c = '2' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
2
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 2 2
|
|
UPDATE t1 SET b = '3' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
3
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 3 2
|
|
COMMIT;
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 3 2
|
|
2 2 2
|
|
3 3 3
|
|
BEGIN;
|
|
UPDATE t1 SET c = '3' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
3
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 3 3
|
|
UPDATE t1 SET b = '4' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
4
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 4 3
|
|
UPDATE t1 SET c = '4' WHERE a = 1;
|
|
SELECT b FROM t1 WHERE a = 1;
|
|
b
|
|
4
|
|
SELECT * FROM t1 WHERE a = 1;
|
|
a b c
|
|
1 4 4
|
|
COMMIT;
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 4 4
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET b = '5' WHERE a = 1;
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 5 4
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET b = '6' WHERE b = '5';
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 6 4
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET b = '7' WHERE c = '4';
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 7 4
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET c = '5' WHERE a = 1;
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 7 5
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET c = '6' WHERE b = '7';
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 7 6
|
|
2 2 2
|
|
3 3 3
|
|
UPDATE t1 SET c = '7' WHERE c = '6';
|
|
SELECT * FROM t1 ORDER BY 1;
|
|
a b c
|
|
1 7 7
|
|
2 2 2
|
|
3 3 3
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1 (
|
|
a INT NOT NULL PRIMARY KEY,
|
|
b TEXT NOT NULL
|
|
) TABLESPACE ts1 STORAGE DISK ENGINE=NDBCLUSTER;
|
|
set @x0 = '01234567012345670123456701234567';
|
|
set @x0 = concat(@x0,@x0,@x0,@x0,@x0,@x0,@x0,@x0);
|
|
set @b1 = 'b1';
|
|
set @b1 = concat(@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1);
|
|
set @b1 = concat(@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1);
|
|
set @b1 = concat(@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1);
|
|
set @b1 = concat(@b1,@x0);
|
|
set @b2 = 'b2';
|
|
set @b2 = concat(@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2);
|
|
set @b2 = concat(@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2);
|
|
set @b2 = concat(@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2);
|
|
set @b2 = concat(@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2);
|
|
INSERT INTO t1 VALUES(1,@b1);
|
|
INSERT INTO t1 VALUES(2,@b2);
|
|
SELECT a,length(b),substr(b,1+2*900,2) FROM t1 WHERE a=1;
|
|
a length(b) substr(b,1+2*900,2)
|
|
1 2256 b1
|
|
SELECT a,length(b),substr(b,1+2*9000,2) FROM t1 WHERE a=2;
|
|
a length(b) substr(b,1+2*9000,2)
|
|
2 20000 b2
|
|
UPDATE t1 SET b=@b2 WHERE a=1;
|
|
UPDATE t1 SET b=@b1 WHERE a=2;
|
|
SELECT a,length(b),substr(b,1+2*9000,2) FROM t1 WHERE a=1;
|
|
a length(b) substr(b,1+2*9000,2)
|
|
1 20000 b2
|
|
SELECT a,length(b),substr(b,1+2*900,2) FROM t1 WHERE a=2;
|
|
a length(b) substr(b,1+2*900,2)
|
|
2 2256 b1
|
|
UPDATE t1 SET b=concat(b,b) WHERE a=1;
|
|
UPDATE t1 SET b=concat(b,b) WHERE a=2;
|
|
SELECT a,length(b),substr(b,1+4*9000,2) FROM t1 WHERE a=1;
|
|
a length(b) substr(b,1+4*9000,2)
|
|
1 40000 b2
|
|
SELECT a,length(b),substr(b,1+4*900,2) FROM t1 WHERE a=2;
|
|
a length(b) substr(b,1+4*900,2)
|
|
2 4512 b1
|
|
DELETE FROM t1 WHERE a=1;
|
|
DELETE FROM t1 WHERE a=2;
|
|
SELECT COUNT(*) FROM t1;
|
|
COUNT(*)
|
|
0
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1 (
|
|
a int NOT NULL,
|
|
b varchar(4000), -- must use 2 pages undo
|
|
PRIMARY KEY using hash (a)
|
|
)
|
|
TABLESPACE ts1 STORAGE DISK ENGINE=NDBCLUSTER;
|
|
set autocommit = 0;
|
|
insert into t1 values(0,'x');
|
|
insert into t1 values(1,'x');
|
|
insert into t1 values(2,'x');
|
|
insert into t1 values(3,'x');
|
|
insert into t1 values(4,'x');
|
|
insert into t1 values(5,'x');
|
|
insert into t1 values(6,'x');
|
|
insert into t1 values(7,'x');
|
|
insert into t1 values(8,'x');
|
|
delete from t1 where a = 0;
|
|
commit;
|
|
set autocommit = 1;
|
|
drop table t1;
|
|
create table test.t1 (f1 varchar(50) primary key, f2 text,f3 int)
|
|
TABLESPACE ts1 STORAGE DISK engine=NDB;
|
|
insert into test.t1 (f1,f2,f3)VALUES("111111","aaaaaa",1);
|
|
insert into test.t1 (f1,f2,f3)VALUES("222222","bbbbbb",2);
|
|
select * from test.t1 order by f1;
|
|
f1 f2 f3
|
|
111111 aaaaaa 1
|
|
222222 bbbbbb 2
|
|
select f1,f2 from test.t1 order by f2;
|
|
f1 f2
|
|
111111 aaaaaa
|
|
222222 bbbbbb
|
|
select f2 from test.t1 order by f2;
|
|
f2
|
|
aaaaaa
|
|
bbbbbb
|
|
select f1,f2 from test.t1 order by f1;
|
|
f1 f2
|
|
111111 aaaaaa
|
|
222222 bbbbbb
|
|
drop table test.t1;
|
|
ALTER TABLESPACE ts1
|
|
DROP DATAFILE 'datafile.dat'
|
|
ENGINE = NDB;
|
|
ALTER TABLESPACE ts1
|
|
DROP DATAFILE 'datafile02.dat'
|
|
ENGINE = NDB;
|
|
DROP TABLESPACE ts1
|
|
ENGINE = NDB;
|
|
DROP LOGFILE GROUP lg1
|
|
ENGINE =NDB;
|