| From: | Andrei Lepikhov <a(dot)lepikhov(at)postgrespro(dot)ru> |
|---|---|
| To: | Damir Belyalov <dam(dot)bel07(at)gmail(dot)com>, zhihuifan1213(at)163(dot)com |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Daniel Gustafsson <daniel(at)yesql(dot)se>, torikoshia <torikoshia(at)oss(dot)nttdata(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Andres Freund <andres(at)anarazel(dot)de>, anisimow(dot)d(at)gmail(dot)com, HukuToc(at)gmail(dot)com, Alena Rybakina <lena(dot)ribackina(at)yandex(dot)ru>, pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: POC PATCH: copy from ... exceptions to: (was Re: VLDB Features) |
| Date: | 2023-11-24 03:52:25 |
| Message-ID: | 760ee97a-e336-4d7b-9477-9d9e99370097@postgrespro.ru |
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| Lists: | pgsql-hackers |
On 14/11/2023 17:10, Damir Belyalov wrote:
> Here is a very straw-man-level sketch of what I think might work.
> The option to COPY FROM looks something like
>
> ERRORS TO other_table_name (item [, item [, ...]])
>
>
> I tried to implement the patch using a table and came across a number of
> questions.
>
> Which table should we implement for this feature: a system catalog table
> or store this table as a file or create a new table?
>
> In these cases, security and user rights management issues arise.
> It is better for other users not to see error lines from another user.
> It is also not clear how access rights to this table are inherited and
> be given.
Previous reviews have given helpful ideas about storing errors in the
new table.
It should be trivial code - use the current table name + 'err' + suffix
as we already do in the case of conflicting auto-generated index names.
The 'errors table' must inherit any right policies from the table, to
which we do the copy.
--
regards,
Andrei Lepikhov
Postgres Professional
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