23 lines
		
	
	
		
			416 B
		
	
	
	
		
			Plaintext
		
	
	
	
			
		
		
	
	
			23 lines
		
	
	
		
			416 B
		
	
	
	
		
			Plaintext
		
	
	
	
#
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# Test of count(distinct ..)
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#
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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create table t1(n int not null, key(n)) delay_key_write = 1;
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let $1=100;
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disable_query_log;
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while ($1)
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{
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 eval insert into t1 values($1);
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 eval insert into t1 values($1);
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 dec $1;
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}
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enable_query_log;
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select count(distinct n) from t1;
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explain extended select count(distinct n) from t1;
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drop table t1;
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# End of 4.1 tests
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