Consider this query on a large table with lots of different IDs:
SELECT id FROM my_table GROUP BY id ORDER BY count(id) LIMIT 10;
It has an index on id. Obviously, the index helps to evaluate
count(id)
for a given value of id, but count()s for all the `id's should be
evaluated, so
On Tue, Feb 18, 2003 at 10:26:46 +0600,
Anuradha Ratnaweera [EMAIL PROTECTED] wrote:
My 3rd attempt to post ...
Consider this query on a large table with lots of different IDs:
SELECT id FROM my_table GROUP BY id ORDER BY count(id) LIMIT 10;
It has an index on id. Obviously, the
My 3rd attempt to post ...
Consider this query on a large table with lots of different IDs:
SELECT id FROM my_table GROUP BY id ORDER BY count(id) LIMIT 10;
It has an index on id. Obviously, the index helps to evaluate count(id)
for a given value of id, but count()s for all the `id's
