Speed up innodb_gis.rtree_split

INSERT...SELECT reading from an InnoDB table is slow due to
creating explicit record locks. Use the sequence engine instead.

Also, remove the space before rtr_page_need_second_split
to actually make the debug injection work.

mysql-test/suite/innodb_gis/r/rtree_split.result

 create table t1 (c1 int, c2 geometry not null, spatial index (c2))engine=innodb;
-insert into t1 values(1, Point(1,1));
-insert into t1 values(2, Point(2,2));
-insert into t1 values(3, Point(3,3));
-insert into t1 values(4, Point(4,4));
-insert into t1 values(5, Point(5,5));
-insert into t1 values(6, Point(6,6));
-insert into t1 values(7, Point(7,7));
-insert into t1 values(8, Point(8,8));
-insert into t1 values(9, Point(9,9));
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
+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 * from t1;
+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;
-delete from t1;
-insert into t1 values(1, Point(1,1));
-insert into t1 values(2, Point(2,2));
-insert into t1 values(3, Point(3,3));
-insert into t1 values(4, Point(4,4));
-insert into t1 values(5, Point(5,5));
-insert into t1 values(6, Point(6,6));
-insert into t1 values(7, Point(7,7));
-insert into t1 values(8, Point(8,8));
-insert into t1 values(9, Point(9,9));
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-start transaction;
-insert into t1 select * from t1;
+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 * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
+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

mysql-test/suite/innodb_gis/t/rtree_split.test

 # WL#6745 InnoDB R-tree support
-# This test case will test R-tree split, mostly on duplciate records.
+# This test case will test R-tree split, mostly on duplicate records.
 
 # Not supported in embedded
 --source include/not_embedded.inc
@@ -8,65 +8,33 @@
 --source include/big_test.inc
 --source include/not_valgrind.inc
 --source include/have_debug.inc
+--source include/have_sequence.inc
 
 # Create table with R-tree index.
 create table t1 (c1 int, c2 geometry not null, spatial index (c2))engine=innodb;
 
+begin;
 # Insert enough values to let R-tree split.
-insert into t1 values(1, Point(1,1));
-insert into t1 values(2, Point(2,2));
-insert into t1 values(3, Point(3,3));
-insert into t1 values(4, Point(4,4));
-insert into t1 values(5, Point(5,5));
-insert into t1 values(6, Point(6,6));
-insert into t1 values(7, Point(7,7));
-insert into t1 values(8, Point(8,8));
-insert into t1 values(9, Point(9,9));
-
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
+insert into t1 select @s:=1+(seq mod 9), point(@s, @s)
+from seq_1_to_576;
 
 #Check second round spliting.
 SET @saved_dbug = @@SESSION.debug_dbug;
-SET debug_dbug = '+d, rtr_page_need_second_split';
-insert into t1 select * from t1;
+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;
 
-delete from t1;
-
-insert into t1 values(1, Point(1,1));
-insert into t1 values(2, Point(2,2));
-insert into t1 values(3, Point(3,3));
-insert into t1 values(4, Point(4,4));
-insert into t1 values(5, Point(5,5));
-insert into t1 values(6, Point(6,6));
-insert into t1 values(7, Point(7,7));
-insert into t1 values(8, Point(8,8));
-insert into t1 values(9, Point(9,9));
-
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-start transaction;
-insert into t1 select * from t1;
+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;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
-insert into t1 select * from t1;
+insert into t1 select @s:=1+(seq mod 9), point(@s, @s)
+from seq_1_to_71424;
 check table t1;
 
 select count(*) from t1;