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: jian.universality@gmail.com
Cc: andrew@dunslane.net, michael@paquier.xyz, sawada.mshk@gmail.com, zhjwpku@gmail.com, nathandbossart@gmail.com, pgsql-hackers@postgresql.org
Date: 2024-01-25T08:05:30Z
Lists: pgsql-hackers 
Hi,

Thanks for trying these patches!

In <CACJufxF9NS3xQ2d79jN0V1CGvF7cR16uJo-C3nrY7vZrwvxF7w@mail.gmail.com>
  "Re: Make COPY format extendable: Extract COPY TO format implementations" on Thu, 25 Jan 2024 10:53:58 +0800,
  jian he <jian.universality@gmail.com> wrote:

> COPY data TO '/dev/null' WITH (FORMAT csv) \watch count=5

Wow! I didn't know the "\watch count="!
I'll use it.

> Time: 668.996 ms
> Time: 596.254 ms
> Time: 592.723 ms
> Time: 591.663 ms
> Time: 590.803 ms

It seems that 5 times isn't enough for this case as Michael
said. But thanks for trying!


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.