Re: a column definition list is required for functions returning "record"
От | Jim Nasby |
---|---|
Тема | Re: a column definition list is required for functions returning "record" |
Дата | |
Msg-id | dd26b0ad-1938-3c0b-80de-a4fcfcedd22d@BlueTreble.com обсуждение исходный текст |
Ответ на | Re: a column definition list is required for functions returning "record" (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: a column definition list is required for functions
returning "record"
|
Список | pgsql-general |
On 8/29/16 6:28 AM, Tom Lane wrote: > Pavel Stehule <pavel.stehule@gmail.com> writes: >> > 2016-08-29 1:59 GMT+02:00 Jim Nasby <Jim.Nasby@bluetreble.com>: >>> >> It would be nice if there was a way to pass dynamically formed records >>> >> around, similar to how you can pass the results of row() around. Someone >>> >> else has actually be asking about this at https://github.com/decibel/pg_ >>> >> lambda/issues/1. >> > Probably there is a space to be PLpgSQL more flexible - but there are >> > limits - PLpgSQL is black box for SQL engine, and when output is any record >> > type, then SQL engine knows zero about returning data structure in >> > preprocessing time. > Exactly. You can pass anonymous record types around today, as long as you > don't do anything that requires knowing what their contents are, either in > the function or in the calling query: What I was thinking of is something (like a function) that has explicitly defined what the contents of the record are. -- Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX Experts in Analytics, Data Architecture and PostgreSQL Data in Trouble? Get it in Treble! http://BlueTreble.com 855-TREBLE2 (855-873-2532) mobile: 512-569-9461
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