A. Kretschmer schrieb:
if I have a table, the_table, with a DATE field, i'll call it 'day', and
I'd like to find all rows whos day falls within a given month, which of the
following methods is faster/costs less:
1.
SELECT * FROM the_table WHERE day LIKE '2008-01-%';
2.
SELECT * FROM the_table
WHERE ( day BETWEEN '$month_begin' AND '$month_end' );
# where $month_begin is '2008-01-01' and $month_end is '2008-01-31';
Probably the second one, but it depends if you have a propper index.
Other solution: create a functional index based on date_trunc and
rewrite your where-condition also.
Can you give an example?
Greetings,
Torsten
