Re: Change COPY ... ON_ERROR ignore to ON_ERROR ignore_row

Kirill Reshke <reshkekirill@gmail.com>

From: Kirill Reshke <reshkekirill@gmail.com>
To: jian he <jian.universality@gmail.com>
Cc: Fujii Masao <masao.fujii@oss.nttdata.com>, Jim Jones <jim.jones@uni-muenster.de>, "David G. Johnston" <david.g.johnston@gmail.com>, Yugo NAGATA <nagata@sraoss.co.jp>, torikoshia <torikoshia@oss.nttdata.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2025-01-11T09:53:52Z
Lists: pgsql-hackers
On Fri, 10 Jan 2025 at 11:38, jian he <jian.universality@gmail.com> wrote:
> I think there are three remaining issues that may need more attention
> 1.
> Table 27.42. pg_stat_progress_copy View
> (<structname>pg_stat_progress_copy</structname>)
> column pg_stat_progress_copy.tuples_skipped now the description is
> ""
> When the ON_ERROR option is set to ignore, this value shows the number of tuples
> skipped due to malformed data. When the ON_ERROR option is set to set_to_null,
> this value shows the number of tuples where malformed data was converted to
> NULL.
> """
> now the column name tuples_skipped would not be that suitable for
> (on_error set_to_null).
> since now it is not tuple skipped, it is in a tuple some value was set to null.

Indeed this is something we need to fix.

> Or
> we can skip progress reports for (on_error set_to_null) case.

Maybe we can add a `malformed_tuples` column to this view?


> 3. do we settled (on_error set_to_null) syntax.

I think so. I prefer this syntax to others discussed in this thread.



-- 
Best regards,
Kirill Reshke



Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. file_fdw: Add regression test for file_fdw with ON_ERROR='set_null'

  2. Add COPY (on_error set_null) option

  3. Add REJECT_LIMIT option to the COPY command.

  4. Add log_verbosity = 'silent' support to COPY command.

  5. Add new COPY option LOG_VERBOSITY.