Re: SQL Challenge: Arbitrary Cross-tab
От | Greg Sabino Mullane |
---|---|
Тема | Re: SQL Challenge: Arbitrary Cross-tab |
Дата | |
Msg-id | 4229381dfaf8f3ae1e4cb0ae62d6f012@biglumber.com обсуждение исходный текст |
Ответ на | Re: SQL Challenge: Arbitrary Cross-tab (Gaetano Mendola <mendola@bigfoot.com>) |
Ответы |
Re: SQL Challenge: Arbitrary Cross-tab
Re: SQL Challenge: Arbitrary Cross-tab |
Список | pgsql-sql |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > Don't you miss for each subselect an order by tid ? No: since all the SELECTs are part of one statement, they will have the same (pseudo-random) implicit order. Since Josh's requirement said the order of the tids* was not important, I can be lazy and get away with it in this case. An order by would not hurt, of course. * As far as PG goes, this is not an ideal abbreviation! :) - -- Greg Sabino Mullane greg@turnstep.com PGP Key: 0x14964AC8 200408180745 -----BEGIN PGP SIGNATURE----- iD8DBQFBI0InvJuQZxSWSsgRApW7AKCpFN6TMQ3WjcJgZse5f+Ap6/Y7RACfSSlc MZusqEadF2xZrE4PLOhmMek= =pnQz -----END PGP SIGNATURE-----
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