Horton

Re: Make COPY format extendable: Extract COPY TO format implementations

Sutou Kouhei <kou@clear-code.com>

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From: Sutou Kouhei <kou@clear-code.com>
To: david.g.johnston@gmail.com
Cc: sawada.mshk@gmail.com, tgl@sss.pgh.pa.us, zhjwpku@gmail.com, michael@paquier.xyz, pgsql-hackers@postgresql.org
Date: 2025-03-20T01:24:55Z
Lists: pgsql-hackers

Attachments

Hi,

In <CAKFQuwaMAFMHqxDXR=SxA0mDjdmntrwxZd2w=nSruLNFH-OzLw@mail.gmail.com>
  "Re: Make COPY format extendable: Extract COPY TO format implementations" on Wed, 19 Mar 2025 17:49:49 -0700,
  "David G. Johnston" <david.g.johnston@gmail.com> wrote:

>> And could someone help (take over if possible) writing a
>> document for this feature? I'm not good at writing a
>> document in English... 0009 in the attached v37 patch set
>> has a draft of it. It's based on existing documents in
>> doc/src/sgml/ and *.h.
>>
>>
> I haven't touched the innards of the structs aside from changing
> programlisting to synopsis.  And redoing the two section opening paragraphs
> to better integrate with the content in the chapter opening.
> 
> The rest I kinda went to town on...

Thanks!!! It's very helpful!!!

I've applied your patch. 0009 is only changed.

Thanks,
-- 
kou

Commits

  1. Refactor Copy{From|To}GetRoutine() to use pass-by-reference argument.

  2. Refactor COPY FROM to use format callback functions.

  3. Refactor COPY TO to use format callback functions.

  4. Another try to fix BF failure introduced in commit ddd5f4f54a.

  5. Revert "Refactor CopyReadAttributes{CSV,Text}() to use a callback in COPY FROM"

  6. Improve COPY TO performance when server and client encodings match

  7. Simplify signature of CopyAttributeOutCSV() in copyto.c

  8. Revert "Refactor CopyAttributeOut{CSV,Text}() to use a callback in COPY TO"

  9. Refactor CopyAttributeOut{CSV,Text}() to use a callback in COPY TO

  10. Refactor CopyReadAttributes{CSV,Text}() to use a callback in COPY FROM

  11. Add progress reporting of skipped tuples during COPY FROM.

  12. pgbench: Add \syncpipeline

  13. meson: Make gzip and tar optional

  14. Export the external file reader used in COPY FROM as APIs.