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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;