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Merge bk-internal:/home/bk/mysql-5.0-opt

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into  macbook.gmz:/Users/kgeorge/mysql/work/B22367-5.0-opt-merge


include/my_base.h:
  Auto merged
mysql-test/r/select.result:
  merge of 5.0-opt to 22367
mysql-test/t/select.test:
  merge of 5.0-opt to 22367
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2006-10-17 10:58:01 +03:00
parent 6caacb9bbd ffc1facce8
commit a2e0c419d3
6 changed files with 38 additions and 9 deletions
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14
mysql-test/t/select.test
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@@ -3033,3 +3033,17 @@ EXPLAIN SELECT t2.*
WHERE t2.fk IN ('a','b') AND t2.pk=t1.fk;
DROP TABLE t1,t2;
#
# Bug #22367: Optimizer uses ref join type instead of eq_ref for simple
# join on strings
#
CREATE TABLE t1 (a int, b varchar(20) NOT NULL, PRIMARY KEY(a));
CREATE TABLE t2 (a int, b varchar(20) NOT NULL,
PRIMARY KEY (a), UNIQUE KEY (b));
INSERT INTO t1 VALUES (1,'a'),(2,'b'),(3,'c');
INSERT INTO t2 VALUES (1,'a'),(2,'b'),(3,'c');
EXPLAIN SELECT t1.a FROM t1 LEFT JOIN t2 ON t2.b=t1.b WHERE t1.a=3;
DROP TABLE t1,t2;