Re: Emitting JSON to file using COPY TO

jian he <jian.universality@gmail.com>

From: jian he <jian.universality@gmail.com>

To: Junwang Zhao <zhjwpku@gmail.com>

Cc: Joe Conway <mail@joeconway.com>, "Andrey M. Borodin" <x4mmm@yandex-team.ru>, Dean Rasheed <dean.a.rasheed@gmail.com>, Daniel Verite <daniel@manitou-mail.org>, Andrew Dunstan <andrew@dunslane.net>, Davin Shearer <davin@apache.org>, PostgreSQL-development <pgsql-hackers@postgresql.org>

Date: 2025-08-10T15:20:12Z

Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Add option force_array for COPY JSON FORMAT
- 4c0390ac53b7 19 (unreleased) landed
json format for COPY TO
- 7dadd38cda95 19 (unreleased) landed
introduce CopyFormat, refactor CopyFormatOptions
- a2145605ee3d 19 (unreleased) landed
Doc: add IDs to copy.sgml's <varlistentry> and <refsect1>
- e4018f891dec 19 (unreleased) cited

Attachments

v18-0003-Add-option-force_array-for-COPY-JSON-FORMAT.patch (text/x-patch) patch v18-0003
v18-0002-json-format-for-COPY-TO.patch (text/x-patch) patch v18-0002
v18-0001-introduce-CopyFormat-refactor-CopyFormatOptions.patch (text/x-patch) patch v18-0001

hi.

rebase and splitted into 3 patches.

v18-0001
+typedef enum CopyFormat
+{
+ COPY_FORMAT_TEXT = 0,
+ COPY_FORMAT_BINARY,
+ COPY_FORMAT_CSV,
+} CopyFormat;
remove CopyFormatOptions two boolean field
(binary, csv_mode)

v18-0002, v18-0003 is refactoring based on prior patch.