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Bug
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-
Critical
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Resolution:
Fixed
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10.2(EOL), 10.3(EOL), 10.4(EOL), 10.5, 10.6
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-
-
CREATE TABLE t1 (a ENUM('a') CHARACTER SET latin1 PRIMARY KEY);
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INSERT INTO t1 VALUES ('a');
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CREATE TABLE t2 (a ENUM('a','A','b','B','c','C','d','D','e','E') CHARACTER SET latin1 COLLATE latin1_bin);
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INSERT INTO t2 VALUES ('a'),('A');
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-- without the following insert the bug doesn't show, was fixed in MDEV-6978
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INSERT INTO t2 VALUES ('b'),('B'),('c'),('C'),('d'),('D'),('e'),('E');
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ALTER TABLE t2 ADD PRIMARY KEY(a);
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SELECT t1.a res FROM t1 JOIN t2 ON t1.a COLLATE latin1_swedish_ci=t2.a;
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SELECT t1.a res FROM t1 LEFT JOIN t2 ON t1.a COLLATE latin1_swedish_ci=t2.a;
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DROP TABLE IF EXISTS t1,t2;
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result
SELECT t1.a res FROM t1 JOIN t2 ON t1.a COLLATE latin1_swedish_ci=t2.a;
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res
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a
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SELECT t1.a res FROM t1 LEFT JOIN t2 ON t1.a COLLATE latin1_swedish_ci=t2.a;
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res
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a
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Correct result
SELECT t1.a res FROM t1 JOIN t2 ON t1.a COLLATE latin1_swedish_ci=t2.a;
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res
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a
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a
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SELECT t1.a res FROM t1 LEFT JOIN t2 ON t1.a COLLATE latin1_swedish_ci=t2.a;
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res
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a
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a
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