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Manual merge of mysql-5.1-bugteam to mysql-trunk-merge.

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Conflicts:

Text conflict in mysql-test/r/partition_innodb.result
Text conflict in sql/field.h
Text conflict in sql/item.h
Text conflict in sql/item_cmpfunc.h
Text conflict in sql/item_sum.h
Text conflict in sql/log_event_old.cc
Text conflict in sql/protocol.cc
Text conflict in sql/sql_select.cc
Text conflict in sql/sql_yacc.yy
This commit is contained in:
Alexey Kopytov 2010-03-20 23:23:42 +03:00
commit 5d407d0c1a
990 changed files with 938665 additions and 250 deletions
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18
mysql-test/t/partition_range.test
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@ -9,6 +9,24 @@
drop table if exists t1, t2;
--enable_warnings
--echo #
--echo # Bug#48229: group by performance issue of partitioned table
--echo #
CREATE TABLE t1 (
a INT,
b INT,
KEY a (a,b)
)
PARTITION BY HASH (a) PARTITIONS 1;
# insert some rows (i.e. so that rows/blocks > 1)
INSERT INTO t1 VALUES (0, 580092), (3, 894076), (4, 805483), (4, 913540), (6, 611137), (8, 171602), (9, 599495), (9, 746305), (10, 272829), (10, 847519), (12, 258869), (12, 929028), (13, 288970), (15, 20971), (15, 105839), (16, 788272), (17, 76914), (18, 827274), (19, 802258), (20, 123677), (20, 587729), (22, 701449), (25, 31565), (25, 230782), (25, 442887), (25, 733139), (25, 851020);
# Before the fix the 'Extra' column showed 'Using index for group-by'
EXPLAIN SELECT a, MAX(b) FROM t1 WHERE a IN (10, 100, 3) GROUP BY a;
DROP TABLE t1;
#
#BUG#49591, Add proper version number to SHOW CREATE TABLE
#