Vlad Arkhipov <[EMAIL PROTECTED]> writes:
> EXPLAIN ANALYZE
> SELECT *
> FROM i
> WHERE d BETWEEN '2007-05-12' AND '2007-05-12'
> Index Scan using i_d on i (cost=0.00..2.39 rows=1 width=402) (actual
> time=0.053..4.284 rows=1721 loops=1)
> Index Cond: ((d >= '2007-05-12'::date) AND (d <= '2007-
I have a big table that is used in many queries. Most used index is
created on date field. Number of records in this table when date field
is saturday is about 5 times smaller than other days, on sunday this
number is always 0. Statistics target is 1000. Many queries have
problems when condition o
