eval 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=$engine
partition by key(a,b,c,d,e,f,g,h,a1,b1,c1,d1,e1,f1,g1,h1) (
partition pa1 max_rows=20 min_rows=2 ,
partition pa2 max_rows=30 min_rows=3 ,
partition pa3 max_rows=30 min_rows=4 ,
partition pa4 max_rows=40 min_rows=2 );
show create table t1;
insert into t1 values
('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' ),
('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' ),
('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' ),
('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' );
--sorted_result
select * from t1;
select * from t1 where a<19851231 ;
drop table t1;
Messung V0.5 in Prozent C=90 H=93 G=91
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-11)
¤
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