2010/10/26 Grzegorz JaÅkiewicz <gryzman@xxxxxxxxx>
implementation wise, count(*) is faster. Very easy to test:
SELECT COUNT(*) FROM generate_series(1,100) a, generate_series(1,1000) b;
SELECT COUNT(a) FROM generate_series(1,100) a, generate_series(1,1000) b;
;]
Well, strange. Why is that slower?