| From: | Jim Nasby <jim(dot)nasby(at)openscg(dot)com> |
|---|---|
| To: | Eric Ridge <eebbrr(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: How to get the 'ctid' from a record type? |
| Date: | 2017-03-11 20:52:04 |
| Message-ID: | c9b5ef05-ead8-995b-7572-06b4f9eb6e94@openscg.com |
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| Lists: | pgsql-hackers |
On 3/10/17 10:31 PM, Eric Ridge wrote:
> What about this? Is the tuple currently being evaluated (I suppose in
> the case of a sequential scan) available in the context of a function call?
AFAIK that *very* specific case would work, because the executor would
be handing you the raw tuple. Not a great bet to make though. Also,
there should be a macro somewhere that will tell you whether you have a
full tuple or not. You'd want to make sure to check that an throw an
error if you weren't handed a full tuple.
--
Jim Nasby, Chief Data Architect, OpenSCG
http://OpenSCG.com
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