explain
SELECT COUNT(u.ukey) FROM u, d WHERE d.ukey = u.ukey AND u.pkey = 260
AND (u.status = 3 ) AND NOT u.boolfield ;
QUERY PLAN
--
Aggregate
On Thursday 18 March 2004 21:21, Joseph Shraibman wrote:
explain
SELECT COUNT(u.ukey) FROM u, d WHERE d.ukey = u.ukey AND u.pkey = 260
AND (u.status = 3 OR d.status = 3 ) AND NOT u.boolfield ;
QUERY PLAN
Richard Huxton wrote:
On Thursday 18 March 2004 21:21, Joseph Shraibman wrote:
explain
SELECT COUNT(u.ukey) FROM u, d WHERE d.ukey = u.ukey AND u.pkey = 260
AND (u.status = 3 OR d.status = 3 ) AND NOT u.boolfield ;
QUERY PLAN
Joseph Shraibman [EMAIL PROTECTED] writes:
No, pkey is not the primary key in this case. The number of entries in u
that have pkey 260 and not boolfield is 344706.
... and every one of those rows *must* be included in the join input,
regardless of its status value, because it might join to
Tom Lane wrote:
Joseph Shraibman [EMAIL PROTECTED] writes:
No, pkey is not the primary key in this case. The number of entries in u
that have pkey 260 and not boolfield is 344706.
... and every one of those rows *must* be included in the join input,
*If* you use one big join in the first
Stephan Szabo wrote:
On Mon, 22 Mar 2004, Joseph Shraibman wrote:
Tom Lane wrote:
Joseph Shraibman [EMAIL PROTECTED] writes:
No, pkey is not the primary key in this case. The number of entries in u
that have pkey 260 and not boolfield is 344706.
... and every one of those rows *must* be
