Re: SQL99, CREATE CAST, and initdb
От | Peter Eisentraut |
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Тема | Re: SQL99, CREATE CAST, and initdb |
Дата | |
Msg-id | Pine.LNX.4.44.0206202106450.1267-100000@localhost.localdomain обсуждение исходный текст |
Ответ на | SQL99, CREATE CAST, and initdb (Thomas Lockhart <lockhart@fourpalms.org>) |
Список | pgsql-hackers |
Thomas Lockhart writes: > I've got patches for the CREATE CAST/DROP CAST feature (just a > rearrangement of our existing function declaration syntax). The SQL99 > form assumes that an existing function will be used for the cast > definition, so I've extended the syntax to allow that and to have an > alternate form which has more of our CREATE FUNCTION functionality. Could you provide more precise details? I've thought of this before, when the new "may be a cast function" feature was added, and this feature didn't match very well. > I'm also looking at the SQL99 INFORMATION_SCHEMA views. Is anyone > already defining these? Yes. I'm done through section 20.18 (COLUMNS view). > The initdb folks may want to start thinking about the best way to > support a larger number of views; currently they are embedded directly > into the initdb script but that would get unwieldy with more of them > (and some of them are *really* fat definitions!). I think they can be loaded from an external file. -- Peter Eisentraut peter_e@gmx.net
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