config root man

SET @@session.default_storage_engine = 'MyISAM';
create table t1 (a int, 
b int generated always as (-a) virtual,
c int generated always as (-a) stored,
d char(1),
index (a),
index (c));
insert into t1 (a,d) values (4,'a'), (2,'b'), (1,'c'), (3,'d');
select * from t1;
a	b	c	d
4	-4	-4	a
2	-2	-2	b
1	-1	-1	c
3	-3	-3	d
# HANDLER tbl_name OPEN
handler t1 open;
# HANDLER tbl_name READ non-gcol_index_name > (value1,value2,...)
handler t1 read a > (2);
a	b	c	d
3	-3	-3	d
# HANDLER tbl_name READ non-gcol_index_name > (value1,value2,...) WHERE non-gcol_field=expr
handler t1 read a > (2) where d='c';
a	b	c	d
# HANDLER tbl_name READ gcol_index_name = (value1,value2,...)
handler t1 read c = (-2);
a	b	c	d
2	-2	-2	b
# HANDLER tbl_name READ gcol_index_name = (value1,value2,...) WHERE non-gcol_field=expr
handler t1 read c = (-2) where d='c';
a	b	c	d
# HANDLER tbl_name READ non-gcol_index_name > (value1,value2,...) WHERE gcol_field=expr
handler t1 read a > (2) where b=-3 && c=-3;
a	b	c	d
3	-3	-3	d
# HANDLER tbl_name READ gcol_index_name <= (value1,value2,...)
handler t1 read c <= (-2);
a	b	c	d
2	-2	-2	b
# HANDLER tbl_name READ gcol_index_name > (value1,value2,...) WHERE gcol_field=expr
handler t1 read c <= (-2) where b=-3;
a	b	c	d
3	-3	-3	d
# HANDLER tbl_name READ gcol_index_name FIRST
handler t1 read c first;
a	b	c	d
4	-4	-4	a
# HANDLER tbl_name READ gcol_index_name NEXT
handler t1 read c next;
a	b	c	d
3	-3	-3	d
# HANDLER tbl_name READ gcol_index_name PREV
handler t1 read c prev;
a	b	c	d
4	-4	-4	a
# HANDLER tbl_name READ gcol_index_name LAST
handler t1 read c last;
a	b	c	d
1	-1	-1	c
# HANDLER tbl_name READ FIRST where non-gcol=expr
handler t1 read FIRST where a >= 2;
a	b	c	d
4	-4	-4	a
# HANDLER tbl_name READ FIRST where gcol=expr
handler t1 read FIRST where b >= -2;
a	b	c	d
2	-2	-2	b
# HANDLER tbl_name READ NEXT where non-gcol=expr
handler t1 read NEXT where d='c';
a	b	c	d
1	-1	-1	c
# HANDLER tbl_name READ NEXT where gcol=expr
handler t1 read NEXT where b<=-4;
a	b	c	d
# HANDLER tbl_name CLOSE
handler t1 close;
drop table t1;
DROP VIEW  IF EXISTS v1,v2;
DROP TABLE IF EXISTS t1,t2,t3;
DROP PROCEDURE IF EXISTS p1;
DROP FUNCTION IF EXISTS f1;
DROP TRIGGER IF EXISTS trg1;
DROP TRIGGER IF EXISTS trg2;
set sql_warnings = 0;