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727491b72a
This includes all test changes from
"Changing all cost calculation to be given in milliseconds"
and forwards.
Some of the things that caused changes in the result files:
- As part of fixing tests, I added 'echo' to some comments to be able to
easier find out where things where wrong.
- MATERIALIZED has now a higher cost compared to X than before. Because
of this some MATERIALIZED types have changed to DEPENDEND SUBQUERY.
- Some test cases that required MATERIALIZED to repeat a bug was
changed by adding more rows to force MATERIALIZED to happen.
- 'Filtered' in SHOW EXPLAIN has in many case changed from 100.00 to
something smaller. This is because now filtered also takes into
account the smallest possible ref access and filters, even if they
where not used. Another reason for 'Filtered' being smaller is that
we now also take into account implicit filtering done for subqueries
using FIRSTMATCH.
(main.subselect_no_exists_to_in)
This is caluculated in best_access_path() and stored in records_out.
- Table orders has changed because more accurate costs.
- 'index' and 'ALL' for small tables has changed to use 'range' or
'ref' because of optimizer_scan_setup_cost.
- index can be changed to 'range' as 'range' optimizer assumes we don't
have to read the blocks from disk that range optimizer has already read.
This can be confusing in the case where there is no obvious where clause
but instead there is a hidden 'key_column > NULL' added by the optimizer.
(main.subselect_no_exists_to_in)
- Scan on primary clustered key does not report 'Using Index' anymore
(It's a table scan, not an index scan).
- For derived tables, the number of rows is now 100 instead of 2,
which can be seen in EXPLAIN.
- More tests have "Using index for group by" as the cost of this
optimization is now more correct (lower).
- A primary key could be preferred for a normal key, even if it would
access more rows, as it's faster to do 1 lokoup and 3 'index_next' on a
clustered primary key than one lookup trough a secondary.
(main.stat_tables_innodb)
Notes:
- There was a 4.7% more calls to best_extension_by_limited_search() in
the main.greedy_optimizer test. However examining the test results
it looked that the plans where slightly better (eq_ref where more
chained together) so I assume this is ok.
- I have verified a few test cases where there was notable/unexpected
changes in the plan and in all cases the new optimizer plans where
faster. (main.greedy_optimizer and some others)
230 lines
16 KiB
Text
230 lines
16 KiB
Text
create table t1 (a date not null, b varchar(50) not null, c varchar(50) not null, d enum('m', 'w'), primary key(a,b,c,d)) engine='MyISAM'
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partition by key (a,b,c,d) (
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partition pa1 max_rows=20 min_rows=2,
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partition pa2 max_rows=30 min_rows=3,
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partition pa3 max_rows=30 min_rows=4,
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partition pa4 max_rows=40 min_rows=2);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` date NOT NULL,
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`b` varchar(50) NOT NULL,
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`c` varchar(50) NOT NULL,
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`d` enum('m','w') NOT NULL,
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PRIMARY KEY (`a`,`b`,`c`,`d`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY KEY (`a`,`b`,`c`,`d`)
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(PARTITION `pa1` MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = MyISAM,
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PARTITION `pa2` MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = MyISAM,
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PARTITION `pa3` MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = MyISAM,
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PARTITION `pa4` MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = MyISAM)
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insert into t1 values
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('1975-01-01', 'abcde', 'abcde','m'),
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('1983-12-31', 'cdef', 'srtbvsr', 'w'),
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('1980-10-14', 'fgbbd', 'dtzndtz', 'w'),
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('2000-06-15', 'jukg','zikhuk','m');
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select * from t1;
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a b c d
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1975-01-01 abcde abcde m
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1980-10-14 fgbbd dtzndtz w
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1983-12-31 cdef srtbvsr w
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2000-06-15 jukg zikhuk m
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select * from t1 where a<19851231;
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a b c d
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1975-01-01 abcde abcde m
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1980-10-14 fgbbd dtzndtz w
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1983-12-31 cdef srtbvsr w
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drop table t1;
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create table t1 (a date not null, b varchar(50) not null, c varchar(50) not null, d enum('m', 'w') not null, e int not null, f decimal (18,2) not null, g bigint not null, h tinyint not null, i char(255), primary key(a,b,c,d,e,f,g,h)) engine='MyISAM'
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partition by key(a,b,c,d,e,f,g,h) (
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partition pa1 max_rows=20 min_rows=2,
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partition pa2 max_rows=30 min_rows=3,
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partition pa3 max_rows=30 min_rows=4,
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partition pa4 max_rows=40 min_rows=2);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` date NOT NULL,
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`b` varchar(50) NOT NULL,
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`c` varchar(50) NOT NULL,
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`d` enum('m','w') NOT NULL,
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`e` int(11) NOT NULL,
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`f` decimal(18,2) NOT NULL,
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`g` bigint(20) NOT NULL,
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`h` tinyint(4) NOT NULL,
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`i` char(255) DEFAULT NULL,
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PRIMARY KEY (`a`,`b`,`c`,`d`,`e`,`f`,`g`,`h`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY KEY (`a`,`b`,`c`,`d`,`e`,`f`,`g`,`h`)
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(PARTITION `pa1` MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = MyISAM,
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PARTITION `pa2` MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = MyISAM,
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PARTITION `pa3` MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = MyISAM,
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PARTITION `pa4` MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = MyISAM)
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insert into t1 values
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('1975-01-01', 'abcde', 'abcde','m', 1234, 123.45, 32412341234, 113, 'tbhth nrzh ztfghgfh fzh ftzhj fztjh'),
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('1983-12-31', 'cdef', 'srtbvsr', 'w', 45634, 13452.56, 3452346456, 127, 'liuugbzvdmrlti b itiortudirtfgtibm dfi'),
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('1980-10-14', 'fgbbd', 'dtzndtz', 'w', 67856, 5463354.67, 3567845333, 124, 'd,f söierugsig msireg siug ei5ggth lrutluitgzeöjrtnb.rkjthuekuhzrkuthgjdnffjmbr'),
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('2000-06-15', 'jukg','zikhuk','m', 45675, 6465754.13, 435242623462, 18, 'pib mdotkbm.m' );
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select * from t1;
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a b c d e f g h i
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1975-01-01 abcde abcde m 1234 123.45 32412341234 113 tbhth nrzh ztfghgfh fzh ftzhj fztjh
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1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 d,f söierugsig msireg siug ei5ggth lrutluitgzeöjrtnb.rkjthuekuhzrkuthgjdnffjmbr
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1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 liuugbzvdmrlti b itiortudirtfgtibm dfi
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2000-06-15 jukg zikhuk m 45675 6465754.13 435242623462 18 pib mdotkbm.m
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select * from t1 where a<19851231;
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a b c d e f g h i
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1975-01-01 abcde abcde m 1234 123.45 32412341234 113 tbhth nrzh ztfghgfh fzh ftzhj fztjh
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1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 d,f söierugsig msireg siug ei5ggth lrutluitgzeöjrtnb.rkjthuekuhzrkuthgjdnffjmbr
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1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 liuugbzvdmrlti b itiortudirtfgtibm dfi
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drop table t1;
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create table t1 (a date not null, b varchar(50) not null, c varchar(50) not null, d enum('m', 'w') not null, e int not null, f decimal (18,2) not null, g bigint not null, h tinyint not null, a1 date not null, b1 varchar(50) not null, c1 varchar(50) not null, d1 enum('m', 'w') not null, e1 int not null, f1 decimal (18,2) not null, g1 bigint not null, h1 tinyint not null, i char(255), primary key(a,b,c,d,e,f,g,h,a1,b1,c1,d1,e1,f1,g1,h1)) engine='MyISAM'
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partition by key(a,b,c,d,e,f,g,h,a1,b1,c1,d1,e1,f1,g1,h1) (
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partition pa1 max_rows=20 min_rows=2,
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partition pa2 max_rows=30 min_rows=3,
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partition pa3 max_rows=30 min_rows=4,
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partition pa4 max_rows=40 min_rows=2);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` date NOT NULL,
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`b` varchar(50) NOT NULL,
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`c` varchar(50) NOT NULL,
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`d` enum('m','w') NOT NULL,
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`e` int(11) NOT NULL,
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`f` decimal(18,2) NOT NULL,
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`g` bigint(20) NOT NULL,
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`h` tinyint(4) NOT NULL,
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`a1` date NOT NULL,
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`b1` varchar(50) NOT NULL,
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`c1` varchar(50) NOT NULL,
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`d1` enum('m','w') NOT NULL,
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`e1` int(11) NOT NULL,
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`f1` decimal(18,2) NOT NULL,
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`g1` bigint(20) NOT NULL,
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`h1` tinyint(4) NOT NULL,
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`i` char(255) DEFAULT NULL,
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PRIMARY KEY (`a`,`b`,`c`,`d`,`e`,`f`,`g`,`h`,`a1`,`b1`,`c1`,`d1`,`e1`,`f1`,`g1`,`h1`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY KEY (`a`,`b`,`c`,`d`,`e`,`f`,`g`,`h`,`a1`,`b1`,`c1`,`d1`,`e1`,`f1`,`g1`,`h1`)
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(PARTITION `pa1` MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = MyISAM,
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PARTITION `pa2` MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = MyISAM,
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PARTITION `pa3` MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = MyISAM,
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PARTITION `pa4` MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = MyISAM)
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insert into t1 values
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('1975-01-01', 'abcde', 'abcde','m', 1234, 123.45, 32412341234, 113,'1975-01-01', 'abcde', 'abcde','m', 1234, 123.45, 32412341234, 113, 'tbhth nrzh ztfghgfh fzh ftzhj fztjh'),
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('1983-12-31', 'cdef', 'srtbvsr', 'w', 45634, 13452.56, 3452346456, 127,'1983-12-31', 'cdef', 'srtbvsr', 'w', 45634, 13452.56, 3452346456, 127, 'liuugbzvdmrlti b itiortudirtfgtibm dfi'),
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('1980-10-14', 'fgbbd', 'dtzndtz', 'w', 67856, 5463354.67, 3567845333, 124,'1980-10-14', 'fgbbd', 'dtzndtz', 'w', 67856, 5463354.67, 3567845333, 124, 'd,f söierugsig msireg siug ei5ggth lrutluitgzeöjrtnb.rkjthuekuhzrkuthgjdnffjmbr'),
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('2000-06-15', 'jukg','zikhuk','m', 45675, 6465754.13, 435242623462, 18, '2000-06-15', 'jukg','zikhuk','m', 45675, 6465754.13, 435242623462, 18, 'pib mdotkbm.m');
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select * from t1;
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a b c d e f g h a1 b1 c1 d1 e1 f1 g1 h1 i
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1975-01-01 abcde abcde m 1234 123.45 32412341234 113 1975-01-01 abcde abcde m 1234 123.45 32412341234 113 tbhth nrzh ztfghgfh fzh ftzhj fztjh
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1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 d,f söierugsig msireg siug ei5ggth lrutluitgzeöjrtnb.rkjthuekuhzrkuthgjdnffjmbr
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1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 liuugbzvdmrlti b itiortudirtfgtibm dfi
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2000-06-15 jukg zikhuk m 45675 6465754.13 435242623462 18 2000-06-15 jukg zikhuk m 45675 6465754.13 435242623462 18 pib mdotkbm.m
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select * from t1 where a<19851231;
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a b c d e f g h a1 b1 c1 d1 e1 f1 g1 h1 i
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1975-01-01 abcde abcde m 1234 123.45 32412341234 113 1975-01-01 abcde abcde m 1234 123.45 32412341234 113 tbhth nrzh ztfghgfh fzh ftzhj fztjh
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1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 d,f söierugsig msireg siug ei5ggth lrutluitgzeöjrtnb.rkjthuekuhzrkuthgjdnffjmbr
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1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 liuugbzvdmrlti b itiortudirtfgtibm dfi
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drop table t1;
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create table t1 (a date not null, b varchar(50) not null, c varchar(50) not null, d enum('m', 'w') not null, e int not null, f decimal (18,2) not null, g bigint not null, h tinyint not null, a1 date not null, b1 varchar(50) not null, c1 varchar(50) not null, d1 enum('m', 'w') not null, e1 int not null, f1 decimal (18,2) not null, g1 bigint not null, h1 tinyint not null, a2 date not null, b2 varchar(50) not null, c2 varchar(50) not null, d2 enum('m', 'w') not null, e2 int not null, f2 decimal (18,2) not null, g2 bigint not null, h2 tinyint not null, a3 date not null, b3 varchar(50) not null, c3 varchar(50) not null, d3 enum('m', 'w') not null, e3 int not null, f3 decimal (18,2) not null, g3 bigint not null, h3 tinyint not null, i char(255), primary key(a,b,c,d,e,f,g,h,a1,b1,c1,d1,e1,f1,g1,h1,a2,b2,c2,d2,e2,f2,g2,h2,a3,b3,c3,d3,e3,f3,g3,h3,a4)) engine='MyISAM'
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partition by key(a,b,c,d,e,f,g,h,a1,b1,c1,d1,e1,f1,g1,h1,a2,b2,c2,d2,e2,f2,g2,h2,a3,b3,c3,d3,e3,f3,g3,h3,a4) (
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partition pa1 max_rows=20 min_rows=2,
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partition pa2 max_rows=30 min_rows=3,
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partition pa3 max_rows=30 min_rows=4,
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partition pa4 max_rows=40 min_rows=2);
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ERROR HY000: Too many fields in 'list of partition fields'
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create table t1 (a date not null, b varchar(50) not null, c varchar(50) not null, d enum('m', 'w') not null, e int not null, f decimal (18,2) not null, g bigint not null, h tinyint not null, a1 date not null, b1 varchar(50) not null, c1 varchar(50) not null, d1 enum('m', 'w') not null, e1 int not null, f1 decimal (18,2) not null, g1 bigint not null, h1 tinyint not null, a2 date not null, b2 varchar(50) not null, c2 varchar(50) not null, d2 enum('m', 'w') not null, e2 int not null, f2 decimal (18,2) not null, g2 bigint not null, h2 tinyint not null, a3 date not null, b3 varchar(50) not null, c3 varchar(50) not null, d3 enum('m', 'w') not null, e3 int not null, f3 decimal (18,2) not null, g3 bigint not null, h3 tinyint not null, i char(255), primary key(a,b,c,d,e,f,g,h,a1,b1,c1,d1,e1,f1,g1,h1,a2,b2,c2,d2,e2,f2,g2,h2,a3,b3,c3,d3,e3,f3,g3,h3)) engine='MyISAM'
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partition by key(a,b,c,d,e,f,g,h,a1,b1,c1,d1,e1,f1,g1,h1,a2,b2,c2,d2,e2,f2,g2,h2,a3,b3,c3,d3,e3,f3,g3,h3) (
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partition pa1 max_rows=20 min_rows=2,
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partition pa2 max_rows=30 min_rows=3,
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partition pa3 max_rows=30 min_rows=4,
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partition pa4 max_rows=40 min_rows=2);
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drop table t1;
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create table t1 (a date not null, b varchar(50) not null, c varchar(50) not null, d enum('m', 'w') not null, e int not null, f decimal (18,2) not null, g bigint not null, h tinyint not null, a1 date not null, b1 varchar(50) not null, c1 varchar(50) not null, d1 enum('m', 'w') not null, e1 int not null, f1 decimal (18,2) not null, g1 bigint not null, h1 tinyint not null, a2 date not null, b2 varchar(50) not null, c2 varchar(50) not null, d2 enum('m', 'w') not null, e2 int not null, f2 decimal (18,2) not null, g2 bigint not null, h2 tinyint not null, a3 date not null, b3 varchar(50) not null, c3 varchar(50) not null, d3 enum('m', 'w') not null, e3 int not null, f3 decimal (18,2) not null, g3 bigint not null, h3 tinyint not null, i char(255), primary key(a,b,c,d,e,f,g,h,a1,b1,c1,d1,e1,f1,g1,h1)) engine='MyISAM'
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partition by key(a,b,c,d,e,f,g,h) (
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partition pa1 max_rows=20 min_rows=2,
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partition pa2 max_rows=30 min_rows=3,
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partition pa3 max_rows=30 min_rows=4,
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partition pa4 max_rows=40 min_rows=2);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` date NOT NULL,
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`b` varchar(50) NOT NULL,
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`c` varchar(50) NOT NULL,
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`d` enum('m','w') NOT NULL,
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`e` int(11) NOT NULL,
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`f` decimal(18,2) NOT NULL,
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`g` bigint(20) NOT NULL,
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`h` tinyint(4) NOT NULL,
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`a1` date NOT NULL,
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`b1` varchar(50) NOT NULL,
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`c1` varchar(50) NOT NULL,
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`d1` enum('m','w') NOT NULL,
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`e1` int(11) NOT NULL,
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`f1` decimal(18,2) NOT NULL,
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`g1` bigint(20) NOT NULL,
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`h1` tinyint(4) NOT NULL,
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`a2` date NOT NULL,
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`b2` varchar(50) NOT NULL,
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`c2` varchar(50) NOT NULL,
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`d2` enum('m','w') NOT NULL,
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`e2` int(11) NOT NULL,
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`f2` decimal(18,2) NOT NULL,
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`g2` bigint(20) NOT NULL,
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`h2` tinyint(4) NOT NULL,
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`a3` date NOT NULL,
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`b3` varchar(50) NOT NULL,
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`c3` varchar(50) NOT NULL,
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`d3` enum('m','w') NOT NULL,
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`e3` int(11) NOT NULL,
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`f3` decimal(18,2) NOT NULL,
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`g3` bigint(20) NOT NULL,
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`h3` tinyint(4) NOT NULL,
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`i` char(255) DEFAULT NULL,
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PRIMARY KEY (`a`,`b`,`c`,`d`,`e`,`f`,`g`,`h`,`a1`,`b1`,`c1`,`d1`,`e1`,`f1`,`g1`,`h1`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY KEY (`a`,`b`,`c`,`d`,`e`,`f`,`g`,`h`)
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(PARTITION `pa1` MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = MyISAM,
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PARTITION `pa2` MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = MyISAM,
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PARTITION `pa3` MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = MyISAM,
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PARTITION `pa4` MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = MyISAM)
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insert into t1 values
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('1975-01-01', 'abcde', 'abcde','m', 1234, 123.45, 32412341234, 113,'1975-01-01', 'abcde', 'abcde','m', 1234, 123.45, 32412341234, 113,'1975-01-01', 'abcde', 'abcde','m', 1234, 123.45, 32412341234, 113, '1975-01-01', 'abcde', 'abcde','m', 1234, 123.45, 32412341234, 113, 'tbhth nrzh ztfghgfh fzh ftzhj fztjh'),
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('1983-12-31', 'cdef', 'srtbvsr', 'w', 45634, 13452.56, 3452346456, 127,'1983-12-31', 'cdef', 'srtbvsr', 'w', 45634, 13452.56, 3452346456, 127, '1983-12-31', 'cdef', 'srtbvsr', 'w', 45634, 13452.56, 3452346456, 127, '1983-12-31', 'cdef', 'srtbvsr', 'w', 45634, 13452.56, 3452346456, 127, 'liuugbzvdmrlti b itiortudirtfgtibm dfi'),
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('1980-10-14', 'fgbbd', 'dtzndtz', 'w', 67856, 5463354.67, 3567845333, 124, '1980-10-14', 'fgbbd', 'dtzndtz', 'w', 67856, 5463354.67, 3567845333, 124, '1980-10-14', 'fgbbd', 'dtzndtz', 'w', 67856, 5463354.67, 3567845333, 124, '1980-10-14', 'fgbbd', 'dtzndtz', 'w', 67856, 5463354.67, 3567845333, 124, 'd,f söierugsig msireg siug ei5ggth lrutluitgzeöjrtnb.rkjthuekuhzrkuthgjdnffjmbr'),
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('2000-06-15', 'jukg','zikhuk','m', 45675, 6465754.13, 435242623462, 18, '2000-06-15', 'jukg','zikhuk','m', 45675, 6465754.13, 435242623462, 18, '2000-06-15', 'jukg','zikhuk','m', 45675, 6465754.13, 435242623462, 18, '2000-06-15', 'jukg','zikhuk','m', 45675, 6465754.13, 435242623462, 18, 'pib mdotkbm.m');
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select * from t1;
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|
a b c d e f g h a1 b1 c1 d1 e1 f1 g1 h1 a2 b2 c2 d2 e2 f2 g2 h2 a3 b3 c3 d3 e3 f3 g3 h3 i
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1975-01-01 abcde abcde m 1234 123.45 32412341234 113 1975-01-01 abcde abcde m 1234 123.45 32412341234 113 1975-01-01 abcde abcde m 1234 123.45 32412341234 113 1975-01-01 abcde abcde m 1234 123.45 32412341234 113 tbhth nrzh ztfghgfh fzh ftzhj fztjh
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|
1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 d,f söierugsig msireg siug ei5ggth lrutluitgzeöjrtnb.rkjthuekuhzrkuthgjdnffjmbr
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1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 liuugbzvdmrlti b itiortudirtfgtibm dfi
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|
2000-06-15 jukg zikhuk m 45675 6465754.13 435242623462 18 2000-06-15 jukg zikhuk m 45675 6465754.13 435242623462 18 2000-06-15 jukg zikhuk m 45675 6465754.13 435242623462 18 2000-06-15 jukg zikhuk m 45675 6465754.13 435242623462 18 pib mdotkbm.m
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select * from t1 where a<19851231;
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|
a b c d e f g h a1 b1 c1 d1 e1 f1 g1 h1 a2 b2 c2 d2 e2 f2 g2 h2 a3 b3 c3 d3 e3 f3 g3 h3 i
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|
1975-01-01 abcde abcde m 1234 123.45 32412341234 113 1975-01-01 abcde abcde m 1234 123.45 32412341234 113 1975-01-01 abcde abcde m 1234 123.45 32412341234 113 1975-01-01 abcde abcde m 1234 123.45 32412341234 113 tbhth nrzh ztfghgfh fzh ftzhj fztjh
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1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 1980-10-14 fgbbd dtzndtz w 67856 5463354.67 3567845333 124 d,f söierugsig msireg siug ei5ggth lrutluitgzeöjrtnb.rkjthuekuhzrkuthgjdnffjmbr
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|
1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 1983-12-31 cdef srtbvsr w 45634 13452.56 3452346456 127 liuugbzvdmrlti b itiortudirtfgtibm dfi
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drop table t1;
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#
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|
# Bug#53770: Server crash at handler.cc:2076 on LOAD DATA
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|
# after timed out COALESCE PARTITION
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CREATE TABLE t1 ( i INT NOT NULL AUTO_INCREMENT PRIMARY KEY, f INT )
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ENGINE = MyISAM PARTITION BY HASH(i) PARTITIONS 3;
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START TRANSACTION;
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|
SELECT * FROM t1;
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|
i f
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connect con2,localhost,root,,;
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|
SET lock_wait_timeout = 2;
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|
ALTER TABLE t1 COALESCE PARTITION 2;
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|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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|
connect con3,localhost,root,,;
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|
LOAD DATA INFILE 'load.in' INTO TABLE t1 (f);
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|
connection default;
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|
COMMIT;
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connection con3;
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DROP TABLE t1;
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disconnect con3;
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disconnect con2;
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|
connection default;
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