Re: plpgsql's case bug?
От | Pavel Stehule |
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Тема | Re: plpgsql's case bug? |
Дата | |
Msg-id | 162867791003272242u21d6ec43pd24d57d467022d9@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: plpgsql's case bug? (Robert Haas <robertmhaas@gmail.com>) |
Список | pgsql-hackers |
> > It seems odd to require a dummy ELSE clause that does nothing just to > avoid having an exception thrown, but I'm not sure what else to make > of the quoted portion of the spec. What do you think it's saying? > I thinking so it designed to be protected before processing CASE statement without any effect. You can design CASE for some values, and when is there different value (in runtime), then your an design can be invalid. So current the design is need some lines more, but is safe. SQL CASE returns NULL if no expression is executed. PSM CASE raises exception. Regards Pavel > ...Robert > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers >
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