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parser_stack.test
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# # These tests are designed to cause an internal parser stack overflow, # and trigger my_yyoverflow(). # use test; SELECT (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( 1 )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) ; prepare stmt from " SELECT (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( 1 )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) " ; execute stmt; --disable_warnings drop view if exists view_overflow; --enable_warnings CREATE VIEW view_overflow AS SELECT (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( 1 )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) ; SELECT * from view_overflow; drop view view_overflow; --disable_warnings drop procedure if exists proc_overflow; --enable_warnings delimiter $$; CREATE PROCEDURE proc_overflow() BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN select 1; select 2; select 3; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END $$ delimiter ;$$ call proc_overflow(); drop procedure proc_overflow; --disable_warnings drop function if exists func_overflow; --enable_warnings delimiter $$; create function func_overflow() returns int BEGIN DECLARE x int default 0; BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN SET x=x+1; SET x=x+2; SET x=x+3; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; return x; END $$ delimiter ;$$ select func_overflow(); drop function func_overflow; --disable_warnings drop table if exists table_overflow; --enable_warnings create table table_overflow(a int, b int); delimiter $$; create trigger trigger_overflow before insert on table_overflow for each row BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN BEGIN SET NEW.b := NEW.a; SET NEW.b := NEW.b + 1; SET NEW.b := NEW.b + 2; SET NEW.b := NEW.b + 3; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END; END $$ delimiter ;$$ insert into table_overflow set a=10; insert into table_overflow set a=20; select * from table_overflow; drop table table_overflow; --disable_warnings drop procedure if exists proc_35577; --enable_warnings delimiter $$; CREATE PROCEDURE proc_35577() BEGIN DECLARE z_done INT DEFAULT 0; DECLARE t_done VARCHAR(5000); outer_loop: LOOP IF t_done=1 THEN LEAVE outer_loop; END IF; inner_block:BEGIN DECLARE z_done INT DEFAULT 0; SET z_done = 0; inner_loop: LOOP IF z_done=1 THEN LEAVE inner_loop; END IF; IF (t_done = 'a') THEN IF (t_done <> 0) THEN IF ( t_done > 0) THEN IF (t_done = 'a') THEN SET t_done = 'a'; ELSEIF (t_done = 'a') THEN SET t_done = 'a'; ELSEIF(t_done = 'a') THEN SET t_done = 'a'; ELSEIF(t_done = 'a') THEN SET t_done = 'a'; ELSEIF(t_done = 'a') THEN SET t_done = 'a'; ELSEIF(t_done = 'a') THEN SET t_done = 'a'; ELSEIF(t_done = 'a') THEN SET t_done = 'a'; ELSEIF(t_done = 'a') THEN SET t_done = 'a'; END IF; END IF; END IF; END IF; END LOOP inner_loop; END inner_block; END LOOP outer_loop; END $$ delimiter ;$$ drop procedure proc_35577; # # Bug#37269 (parser crash when creating stored procedure) # --disable_warnings drop procedure if exists p_37269; --enable_warnings delimiter $$; create procedure p_37269() begin declare done int default 0; declare varb int default 0; declare vara int default 0; repeat select now(); until done end repeat; while varb do select now(); begin select now(); repeat select now(); until done end repeat; if vara then select now(); repeat select now(); loop select now(); end loop; repeat select now(); label1: while varb do select now(); end while label1; if vara then select now(); repeat select now(); until done end repeat; begin select now(); while varb do select now(); label1: while varb do select now(); end while label1; if vara then select now(); while varb do select now(); loop select now(); end loop; repeat select now(); loop select now(); while varb do select now(); end while; repeat select now(); label1: loop select now(); if vara then select now(); end if; end loop label1; until done end repeat; end loop; until done end repeat; end while; end if; end while; end; end if; until done end repeat; until done end repeat; end if; end; end while; end $$ delimiter ;$$ drop procedure p_37269; # # Bug#37228 (Sever crashes when creating stored procedure with more than # 10 IF/ELSEIF) # --disable_warnings drop procedure if exists p_37228; --enable_warnings delimiter $$; create procedure p_37228 () BEGIN DECLARE v INT DEFAULT 123; IF (v > 1) THEN SET v = 1; ELSEIF (v < 10) THEN SET v = 10; ELSEIF (v < 11) THEN SET v = 11; ELSEIF (v < 12) THEN SET v = 12; ELSEIF (v < 13) THEN SET v = 13; ELSEIF (v < 14) THEN SET v = 14; ELSEIF (v < 15) THEN SET v = 15; ELSEIF (v < 16) THEN SET v = 16; ELSEIF (v < 17) THEN SET v = 17; ELSEIF (v < 18) THEN SET v = 18; ELSEIF (v < 19) THEN SET v = 19; ELSEIF (v < 20) THEN SET v = 20; ELSEIF (v < 21) THEN SET v = 21; ELSEIF (v < 22) THEN SET v = 22; ELSEIF (v < 23) THEN SET v = 23; ELSEIF (v < 24) THEN SET v = 24; ELSEIF (v < 25) THEN SET v = 25; ELSEIF (v < 26) THEN SET v = 26; ELSEIF (v < 27) THEN SET v = 27; ELSEIF (v < 28) THEN SET v = 28; ELSEIF (v < 29) THEN SET v = 29; ELSEIF (v < 30) THEN SET v = 30; ELSEIF (v < 31) THEN SET v = 31; ELSEIF (v < 32) THEN SET v = 32; ELSEIF (v < 33) THEN SET v = 33; ELSEIF (v < 34) THEN SET v = 34; ELSEIF (v < 35) THEN SET v = 35; ELSEIF (v < 36) THEN SET v = 36; ELSEIF (v < 37) THEN SET v = 37; ELSEIF (v < 38) THEN SET v = 38; ELSEIF (v < 39) THEN SET v = 39; END IF; END $$ delimiter ;$$ drop procedure p_37228; # # Bug#27863 (excessive memory usage for many small queries in a multiquery # packet). # let $i=`select repeat("set @a=1;", 65535)`; --disable_query_log eval $i; --enable_query_log