create table t1 (c1 int, c2 geometry not null, spatial index (c2))engine=innodb; begin; insert into t1 select @s:=1+(seq mod 9), point(@s, @s) from seq_1_to_576; SET @saved_dbug = @@SESSION.debug_dbug; SET debug_dbug = '+d,rtr_page_need_second_split'; insert into t1 select @s:=1+(seq mod 9), point(@s, @s) from seq_1_to_576; SET debug_dbug = @saved_dbug; rollback; insert into t1 select @s:=1+(seq mod 9), point(@s, @s) from seq_1_to_2304; begin; insert into t1 select @s:=1+(seq mod 9), point(@s, @s) from seq_1_to_2304; rollback; check table t1; Table Op Msg_type Msg_text test.t1 check status OK insert into t1 select @s:=1+(seq mod 9), point(@s, @s) from seq_1_to_71424; check table t1; Table Op Msg_type Msg_text test.t1 check status OK select count(*) from t1; count(*) 73728 set @g1 = ST_GeomFromText('Polygon((0 0,0 100,100 100,100 0,0 0))'); select count(*) from t1 where MBRWithin(t1.c2, @g1); count(*) 73728 set @g1 = ST_GeomFromText('Polygon((10 10,10 800,800 800,800 10,10 10))'); select count(*) from t1 where MBRWithin(t1.c2, @g1); count(*) 0 drop index c2 on t1; create spatial index idx2 on t1(c2); affected rows: 0 info: Records: 0 Duplicates: 0 Warnings: 0 show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `c1` int(11) DEFAULT NULL, `c2` geometry NOT NULL, SPATIAL KEY `idx2` (`c2`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 set @g1 = ST_GeomFromText('Polygon((0 0,0 100,100 100,100 0,0 0))'); select count(*) from t1 where MBRWithin(t1.c2, @g1); count(*) 73728 set @g1 = ST_GeomFromText('Polygon((2 2,2 800,800 800,800 2,2 2))'); select count(*) from t1 where MBRWithin(t1.c2, @g1); count(*) 57344 set @g1 = ST_GeomFromText('Polygon((0 0,0 100,100 100,100 0,0 0))'); select count(*) from t1 where MBRWithin(t1.c2, @g1); count(*) 73728 set @g1 = ST_GeomFromText('Polygon((2 2,2 800,800 800,800 2,2 2))'); select count(*) from t1 where MBRWithin(t1.c2, @g1); count(*) 57344 drop table t1;