Re: minor patch submission: CREATE CAST ... AS EXPLICIT
От | Peter Eisentraut |
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Тема | Re: minor patch submission: CREATE CAST ... AS EXPLICIT |
Дата | |
Msg-id | 1306269775.14693.9.camel@vanquo.pezone.net обсуждение исходный текст |
Ответ на | minor patch submission: CREATE CAST ... AS EXPLICIT (Fabien COELHO <coelho@cri.ensmp.fr>) |
Ответы |
Re: minor patch submission: CREATE CAST ... AS EXPLICIT
Re: minor patch submission: CREATE CAST ... AS EXPLICIT |
Список | pgsql-hackers |
On lör, 2011-05-21 at 15:46 +0200, Fabien COELHO wrote: > Hello, > > Please find attached a minor stylish patch. It compiles and the update > test cases work for me. > > Description: > > Add "AS EXPLICIT" to "CREATE CAST" > > This gives a name to the default case of "CREATE CAST", which creates a > cast which must be explicitely invoked. > > >From a language definition perspective, it is helpful to have a name for > every case instead of an implicit fallback, without any word to describe > it. See for instance "CREATE USER CREATEDB/NOCREATEDB" or "CREATE RULE ... > DO ALSO/INSTEAD" for similar occurences of naming default cases. Oddly enough, we did add the DO ALSO syntax much later, and no one complained about that, as far as I recall.
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