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: hannuk@google.com
Cc: zhjwpku@gmail.com, kuroda.hayato@fujitsu.com, andrew@dunslane.net, michael@paquier.xyz, sawada.mshk@gmail.com, nathandbossart@gmail.com, pgsql-hackers@postgresql.org
Date: 2023-12-09T21:01:36Z
Lists: pgsql-hackers 
Hi,

In <CAMT0RQRqVo4fGDWHqOn+wr_eoiXQVfyC=8-c=H=y6VcNxi6BvQ@mail.gmail.com>
  "Re: Make COPY format extendable: Extract COPY TO format implementations" on Sat, 9 Dec 2023 12:38:46 +0100,
  Hannu Krosing <hannuk@google.com> wrote:

> Please also see my presentation slides from last years PostgreSQL
> Conference in Berlin (attached)

Thanks for sharing your idea here.

> The main Idea is to make not just "format", but also "transport" and
> "stream processing" extendable via virtual function tables.

"Transport" and "stream processing" are out of scope in this
thread. How about starting new threads for them and discuss
them there?

> Btw, will any of you here be in Prague next week ?

Sorry. No.


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.