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			24 lines
		
	
	
	
		
			912 B
		
	
	
	
		
			Text
		
	
	
	
	
	
			
		
		
	
	
			24 lines
		
	
	
	
		
			912 B
		
	
	
	
		
			Text
		
	
	
	
	
	
#
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# MDEV-4520: Assertion `0' fails in Query_cache::end_of_result on
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# concurrent drop event and event execution
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#
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set @save_query_cache_size=@@query_cache_size;
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set GLOBAL query_cache_size=1355776;
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create user mysqltest1@localhost;
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grant SELECT on test.* to mysqltest1@localhost;
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create table t1 (a int);
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connect  con1,localhost,mysqltest1,,;
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connection con1;
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# This explain put here to be sure that init connection query
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# has 'Impossible WHERE'.
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explain extended select * from test.t1 where 0;
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id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
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1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
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Warnings:
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Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where 0
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connection default;
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disconnect con1;
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revoke all privileges, grant option from mysqltest1@localhost;
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drop user mysqltest1@localhost;
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drop table t1;
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set GLOBAL query_cache_size=@save_query_cache_size;
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