Help me speed things up...
От | Paul Tomblin |
---|---|
Тема | Help me speed things up... |
Дата | |
Msg-id | 20010606222601.A7733@allhats.xcski.com обсуждение исходный текст |
Ответ на | Re: [SQL] maximum number of rows in table - what about oid limits? (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-general |
I'm doing some postgres stuff in perl. I haven't done much database stuff in many years, and back then I was doing Oracle in C. I'm doing a major query that gets a bunch of fields including a key, and then does other queries with that key on other tables. Now with Oracle I would have set up and compiled a query for the subqueries, and then only substituted in the key variable and do the query, and repeat ad-nauseum. (Forgive the fact that I've forgotten the terminology) There doesn't seem to be any way to do that in Pg.pm, unless I'm missing something, and my subqueries are making the whole thing slow as molasses. I think the query I just did took about 45 minutes when I did the subqueries, and about 30 seconds without. -- Paul Tomblin <ptomblin@xcski.com>, not speaking for anybody "But I heard him exclaim, as he climbed in the night Merry Christmas to all, I have traffic in sight" - Phyllis Moses
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