Re: Introduce pg_receivewal gzip compression tests

From: gkokolatos(at)pm(dot)me
To: Michael Paquier <michael(at)paquier(dot)xyz>
Cc: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Introduce pg_receivewal gzip compression tests
Date: 2021-07-13 08:28:44
Message-ID: 20S0VOZrXJglfVMkn44Lks8F3gh66sHlxdes-d8XzjfcFV6VDHv9rF3_-KE2mnKTGlwoedEBz1k2UKrd2_hFBEQo2585MkrrJ-wpKWgGcBU=@pm.me
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On Tuesday, July 13th, 2021 at 10:14, Michael Paquier <michael(at)paquier(dot)xyz> wrote:

> On Tue, Jul 13, 2021 at 04:37:53PM +0900, Michael Paquier wrote:
>
> Poking at this problem, I partially take this statement back as this
> requires an initial run of pg_receivewal --endpos to ensure the
> creation of one .gz and one .gz.partial. So I guess that this should
> be structured as:
>
> 1. Keep the existing pg_receivewal --endpos.
> 2. Add the ZLIB block, with one pg_receivewal --endpos.
> 3. Add at the end one extra pg_receivewal --endpos, outside of the ZLIB
> block, which should check the creation of a .partial, non-compressed
> segment. This should mention that we place this command at the end of
> the test for the start streaming point computation.
> LZ4 tests would be then between 2) and 3), or 1) and 2).

Sounds great. Let me cook up v6 for this.

>
> --
>
> Michael

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