Michael Fuhr wrote:
On Tue, Feb 01, 2005 at 11:54:11AM -0500, Joel Fradkin wrote:
A table with 645,000 records for associates has view (basically select *
from tblassociates where clientnum = 'test')
This is taking 13 seconds in postgres and 3 seconds in MSSQL.
Please post the EXPLAIN ANALYZE output for the slow query, once
with enable_seqscan on and once with it off. For example:
SET enable_seqscan TO on; -- if not already on
EXPLAIN ANALYZE SELECT * FROM tblassociates WHERE clientnum = 'test';
SET enable_seqscan TO off;
EXPLAIN ANALYZE SELECT * FROM tblassociates WHERE clientnum = 'test';
Be glad to provide the view and tables etc.
Please do -- it might help us spot something that could be improved.
What version of PostgreSQL are you using?
Also, is clientnum a string datatype, or are you doing implicit type
conversion?
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TIP 8: explain analyze is your friend
