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44 lines
1.4 KiB
Text
44 lines
1.4 KiB
Text
CREATE TABLE t1(a INT, b INT);
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CREATE INDEX IF NOT EXISTS i1 ON t1(a);
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL,
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`b` int(11) DEFAULT NULL,
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KEY `i1` (`a`)
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) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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DROP INDEX IF EXISTS i1 ON t1;
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL,
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`b` int(11) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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DROP INDEX IF EXISTS i1 ON t1;
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Warnings:
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Note 1091 Can't DROP INDEX `i1`; check that it exists
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL,
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`b` int(11) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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CREATE OR REPLACE INDEX i1 ON t1(a);
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL,
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`b` int(11) DEFAULT NULL,
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KEY `i1` (`a`)
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) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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CREATE OR REPLACE INDEX i1 ON t1(a,b);
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL,
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`b` int(11) DEFAULT NULL,
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KEY `i1` (`a`,`b`)
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) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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DROP TABLE t1;
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CREATE OR REPLACE INDEX IF NOT EXISTS i1 ON t1(b,a);
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ERROR HY000: Incorrect usage of OR REPLACE and IF NOT EXISTS
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