1414
1414
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_Comment
1415
1415
t1 1 a 1 a A 8 NULL NULL YES BTREE
1423
1417
CREATE TEMPORARY TABLE t1(a INT, b INT, KEY inx (a), UNIQUE KEY uinx (b)) ENGINE=MyISAM;
1424
1418
INSERT INTO t1(a,b) VALUES (1,1),(2,2),(3,3),(4,4),(5,5);
1425
1419
SELECT a FROM t1 FORCE INDEX (inx) WHERE a=1;