| Lists: | pgsql-hackers |
|---|
| From: | Luca Ferrari <fluca1978(at)infinito(dot)it> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | RelOptInfo->reltargetlist |
| Date: | 2007-08-20 09:21:01 |
| Message-ID: | 200708201121.01356.fluca1978@infinito.it |
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| Lists: | pgsql-hackers |
Hi all,
apologize if this is a trivial question but I'd like to understand what values
are stored in the RelOptInfo->reltargetlist or, better, how I can check such
values in the information schema to understand what they refer to. I've tried
to look in the pg_attribute table but I was not able to find a match. In other
words, how can I check what is the oid of the listcell pointing to in the
database schema?
Thanks,
Luca
| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Luca Ferrari <fluca1978(at)infinito(dot)it> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: RelOptInfo->reltargetlist |
| Date: | 2007-08-20 13:45:57 |
| Message-ID: | 29097.1187617557@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Luca Ferrari <fluca1978(at)infinito(dot)it> writes:
> apologize if this is a trivial question but I'd like to understand what values
> are stored in the RelOptInfo->reltargetlist or, better, how I can check such
> values in the information schema to understand what they refer to. I've tried
> to look in the pg_attribute table but I was not able to find a match. In other
> words, how can I check what is the oid of the listcell pointing to in the
> database schema?
That list doesn't contain OIDs ... it contains Var nodes.
regards, tom lane