mirror of
				https://github.com/postgres/postgres.git
				synced 2025-11-03 09:13:20 +03:00 
			
		
		
		
	
		
			
				
	
	
		
			32 lines
		
	
	
		
			960 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
			
		
		
	
	
			32 lines
		
	
	
		
			960 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
-- bit check
 | 
						|
 | 
						|
CREATE TABLE bittmp (a bit(33));
 | 
						|
 | 
						|
\copy bittmp from 'data/bit.data'
 | 
						|
 | 
						|
SET enable_seqscan=on;
 | 
						|
 | 
						|
SELECT count(*) FROM bittmp WHERE a <   '011011000100010111011000110000100';
 | 
						|
 | 
						|
SELECT count(*) FROM bittmp WHERE a <=  '011011000100010111011000110000100';
 | 
						|
 | 
						|
SELECT count(*) FROM bittmp WHERE a  =  '011011000100010111011000110000100';
 | 
						|
 | 
						|
SELECT count(*) FROM bittmp WHERE a >=  '011011000100010111011000110000100';
 | 
						|
 | 
						|
SELECT count(*) FROM bittmp WHERE a >   '011011000100010111011000110000100';
 | 
						|
 | 
						|
CREATE INDEX bitidx ON bittmp USING GIST ( a );
 | 
						|
 | 
						|
SET enable_seqscan=off;
 | 
						|
 | 
						|
SELECT count(*) FROM bittmp WHERE a <   '011011000100010111011000110000100';
 | 
						|
 | 
						|
SELECT count(*) FROM bittmp WHERE a <=  '011011000100010111011000110000100';
 | 
						|
 | 
						|
SELECT count(*) FROM bittmp WHERE a  =  '011011000100010111011000110000100';
 | 
						|
 | 
						|
SELECT count(*) FROM bittmp WHERE a >=  '011011000100010111011000110000100';
 | 
						|
 | 
						|
SELECT count(*) FROM bittmp WHERE a >   '011011000100010111011000110000100';
 |