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b75090c7de
generate_derived_keys_for_table() did not work correctly in the case where - it had a potential index on derived table - however, TABLE::check_tmp_key() would disallow creation of this index after looking at its future key parts (because of the key parts exceeding max. index length) - the code would leave a KEYUSE structure that refers to a non-existant index. Depending on further optimizer calculations, this could cause a crash.
49 lines
1.3 KiB
Text
49 lines
1.3 KiB
Text
drop table if exists t1,t2,t3;
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drop view if exists v2,v3;
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CREATE TABLE t1 (pk INT PRIMARY KEY) ENGINE=MyISAM;
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CREATE TABLE t2 (
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f1 DATE,
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f2 VARCHAR(1024),
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f3 VARCHAR(10),
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f4 DATE,
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f5 VARCHAR(10),
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f6 VARCHAR(10),
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f7 VARCHAR(10),
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f8 DATETIME,
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f9 INT,
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f10 VARCHAR(1024),
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f11 VARCHAR(1024),
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f12 INT,
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f13 VARCHAR(1024)
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) ENGINE=MyISAM;
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CREATE OR REPLACE VIEW v2 AS SELECT * FROM t2;
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CREATE TABLE t3 (
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f1 VARCHAR(1024),
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f2 VARCHAR(1024),
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f3 DATETIME,
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f4 VARCHAR(10),
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f5 INT,
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f6 VARCHAR(10),
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f7 VARCHAR(1024),
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f8 VARCHAR(10),
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f9 INT,
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f10 DATE,
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f11 INT,
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f12 VARCHAR(1024),
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f13 VARCHAR(10),
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f14 DATE,
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f15 DATETIME
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) ENGINE=MyISAM;
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CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v3 AS SELECT * FROM t3;
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INSERT INTO t3 VALUES
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('FOO','foo','2000-08-04 00:00:00','one',1,'1','FOO','foo',1,'2004-05-09',1,'one','one','2001-12-07','2001-10-17 08:25:04'),
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('BAR','bar','2001-01-01 04:52:37','two',2,'2','BAR','bar',2,'2008-01-01',2,'two','two','2006-06-19','2002-01-01 08:22:49');
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CREATE TABLE t4 (f1 VARCHAR(10), f2 INT) ENGINE=MyISAM;
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SELECT * FROM t1;
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pk
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SELECT non_existing FROM v2;
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ERROR 42S22: Unknown column 'non_existing' in 'field list'
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SELECT * FROM t1, v3, t4 WHERE v3.f1 = t4.f1 AND t4.f2 = 6 AND t1.pk = v3.f5;
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pk f1 f2 f3 f4 f5 f6 f7 f8 f9 f10 f11 f12 f13 f14 f15 f1 f2
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drop table t1,t2,t3,t4;
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drop view v2,v3;
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