17 lines
		
	
	
		
			477 B
		
	
	
	
		
			Plaintext
		
	
	
	
		
		
			
		
	
	
			17 lines
		
	
	
		
			477 B
		
	
	
	
		
			Plaintext
		
	
	
	
| 
								 | 
							
								--source include/have_debug.inc
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								#
							 | 
						||
| 
								 | 
							
								# Bug #37627: Killing query with sum(exists()) or avg(exists()) reproducibly
							 | 
						||
| 
								 | 
							
								# crashes server
							 | 
						||
| 
								 | 
							
								#
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								CREATE TABLE t1(id INT);
							 | 
						||
| 
								 | 
							
								INSERT INTO t1 VALUES (1),(2),(3),(4);
							 | 
						||
| 
								 | 
							
								INSERT INTO t1 SELECT a.id FROM t1 a,t1 b,t1 c,t1 d;
							 | 
						||
| 
								 | 
							
								# Setup the mysqld to crash at certain point
							 | 
						||
| 
								 | 
							
								SET SESSION debug="d,subselect_exec_fail";
							 | 
						||
| 
								 | 
							
								SELECT SUM(EXISTS(SELECT RAND() FROM t1)) FROM t1;
							 | 
						||
| 
								 | 
							
								SELECT REVERSE(EXISTS(SELECT RAND() FROM t1));
							 | 
						||
| 
								 | 
							
								SET SESSION debug=DEFAULT;
							 | 
						||
| 
								 | 
							
								DROP TABLE t1;
							 |