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Merge mysql.com:/misc/mysql/34731/50-34731

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into  mysql.com:/misc/mysql/34731/51-34731


mysql-test/t/range.test:
  Auto merged
sql/opt_range.cc:
  Auto merged
mysql-test/r/range.result:
  manual merge
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2008-03-27 03:18:46 +01:00
parent 269ebe5421 fd1616311d
commit 548b389f3a
3 changed files with 143 additions and 40 deletions
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mysql-test/t/range.test
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@ -972,6 +972,52 @@ EXPLAIN SELECT a FROM t1 WHERE a='b' OR a='B';
DROP TABLE t1;
#
# Bug #34731: highest possible value for INT erroneously filtered by WHERE
#
# test UNSIGNED. only occurs when indexed.
CREATE TABLE t1 (f1 TINYINT(11) UNSIGNED NOT NULL, PRIMARY KEY (f1));
INSERT INTO t1 VALUES (127),(254),(0),(1),(255);
# test upper bound
# count 5
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 < 256;
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 < 256.0;
# count 4
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 < 255;
# show we don't fiddle with lower bound on UNSIGNED
# count 0
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 < -1;
# count 5
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 > -1;
DROP TABLE t1;
# test signed. only occurs when index.
CREATE TABLE t1 ( f1 TINYINT(11) NOT NULL, PRIMARY KEY (f1));
INSERT INTO t1 VALUES (127),(126),(0),(-128),(-127);
# test upper bound
# count 5
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 < 128;
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 < 128.0;
# count 4
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 < 127;
# test lower bound
# count 5
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 > -129;
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 > -129.0;
# count 4
SELECT SQL_NO_CACHE COUNT(*) FROM t1 WHERE f1 > -128;
DROP TABLE t1;
# End of 5.0 tests
# BUG#22393 fix: Adjust 'ref' estimate if we have 'range' estimate for