RE: Anyone particularly wedded to func_tlist mechanism?
От | Hiroshi Inoue |
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Тема | RE: Anyone particularly wedded to func_tlist mechanism? |
Дата | |
Msg-id | 000301bffdad$0ebcffa0$2801007e@tpf.co.jp обсуждение исходный текст |
Ответ на | Anyone particularly wedded to func_tlist mechanism? (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: Anyone particularly wedded to func_tlist mechanism?
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Список | pgsql-hackers |
> -----Original Message----- > From: Tom Lane > > The "target list" that's added to function-call nodes in expressions > has bugged me for a long time, because it seems to clutter expression > trees quite a bit (thus wasting space in stored rules, for example) > without really being used for much. > > I've now dug around and determined that the only thing it is used for > is selecting out a single field from a function that returns a tuple. I don't understand details about current fmgr changes,sorry. If I remember correctly,this has been only in case of SQL functions. In addition,SQL functions has returned a TupleTableSlot not a tuple if the return type is a compound type. Has it been changed already ? Or would it be changed ? Regards. Hiroshi Inoue Inoue@tpf.co.jp
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