Re: backup manifests

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>

To: David Fetter <david@fetter.org>

Cc: Robert Haas <robertmhaas@gmail.com>, David Steele <david@pgmasters.net>, Tels <nospam-pg-abuse@bloodgate.com>, Suraj Kharage <suraj.kharage@enterprisedb.com>, Rushabh Lathia <rushabh.lathia@gmail.com>, Andrew Dunstan <andrew.dunstan@2ndquadrant.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Jeevan Chalke <jeevan.chalke@enterprisedb.com>, vignesh C <vignesh21@gmail.com>

Date: 2020-01-02T00:46:15Z

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 →

Try to avoid compiler warnings in optimized builds.
- 05021a2c0cd2 13.0 landed
Fix option related issues in pg_verifybackup.
- 0a89e93bfaa6 13.0 landed
Add index term for backup manifest in documentation.
- 4db819ba4039 13.0 landed
Code review for backup manifest.
- a2ac73e7be7a 13.0 landed
Document the backup manifest file format.
- 149f2ae88ab0 13.0 landed
Fix typo in pg_validatebackup documentation.
- c4f82a779d26 13.0 landed
Exclude backup_manifest file that existed in database, from BASE_BACKUP.
- 1ec50a81ec0a 13.0 landed
Msys2 tweaks for pg_validatebackup corruption test
- c3e4cbaab936 13.0 landed
Fix resource management bug with replication=database.
- 3e0d80fd8d3d 13.0 cited
Be more careful about time_t vs. pg_time_t in basebackup.c.
- db1531cae009 13.0 cited
pg_validatebackup: Fix 'make clean' to remove tmp_check.
- 9f8f881caa0f 13.0 landed
pg_validatebackup: Also use perl2host in TAP tests.
- 460314db08e8 13.0 landed
Generate backup manifests for base backups, and validate them.
- 0d8c9c1210c4 13.0 landed
Add checksum helper functions.
- c12e43a2e0d4 13.0 landed
pg_waldump: Add a --quiet option.
- ac44367efbef 13.0 landed
Catversion bump for b9b408c48724
- afb5465e0cfc 13.0 cited
pg_basebackup: Refactor code for reading COPY and tar data.
- 431ba7bebf13 13.0 landed
Use a ResourceOwner to track buffer pins in all cases.
- 3cb646264e8c 12.0 cited
Use ARMv8 CRC instructions where available.
- f044d71e331d 11.0 cited
Logical replication support for initial data copy
- 7c4f52409a8c 10.0 cited
Use Intel SSE 4.2 CRC instructions where available.
- 3dc2d62d0486 9.5.0 cited
Switch to CRC-32C in WAL and other places.
- 5028f22f6eb0 9.5.0 cited
Remove support for 64-bit CRC.
- 404bc51cde9d 9.5.0 cited
Change CRCs in WAL records from 64bit to 32bit for performance reasons.
- 21fda22ec46d 8.1.0 cited

David Fetter <david@fetter.org> writes:
> On Wed, Jan 01, 2020 at 01:43:40PM -0500, Robert Haas wrote:
>> So, if someone can suggest to me how I could read JSON from a tool in
>> src/bin without writing a lot of code, I'm all ears.

> Maybe I'm missing something obvious, but wouldn't combining
> pg_read_file() with a cast to JSONB fix this, as below?

Only if you're prepared to restrict the use of the tool to superusers
(or at least people with whatever privilege that function requires).

Admittedly, you can probably feed the data to the backend without
use of an intermediate file; but it still requires a working backend
connection, which might be a bit of a leap for backup-related tools.
I'm sure Robert was envisioning doing this processing inside the tool.

			regards, tom lane