[PERFORM] Strange behaviour

2006-07-30 Thread Richard Rowell
We are using a BI tool that generates some rather ugly queries. One of the ugly queries is taking much longer to return thin I think it should. The select expression when run alone returns in 2 seconds with 35k rows (http://www.bowmansystems.com/~richard/explain_select.analyze) The "where cla

Re: [PERFORM] Whence the Opterons?

2005-06-10 Thread Richard Rowell
icey Opteron systems. > The IT people are not swell about unsupported purchases off ebay. > Anyone care to suggest any other vendors/distributors? > Looking for names with national support, so that we can recommend as much to > our > customers. > > Many thanks in advance. -- -

[PERFORM] Suggestions for a data-warehouse migration routine

2005-04-27 Thread Richard Rowell
I've ported enough of my companies database to Postgres to make warehousing on PG a real possibility. I thought I would toss my data migration architecture ideas out for the list to shoot apart.. 1. Script on production server dumps the production database (MSSQL) to a set of delimited text file

[PERFORM] Improve performance of query

2004-12-16 Thread Richard Rowell
I'm trying to port our application from MS-SQL to Postgres. We have implemented all of our rather complicated application security in the database. The query that follows takes a half of a second or less on MS-SQL server and around 5 seconds on Postgres. My concern is that this data set is rathe