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help / color / mirror / Atom feedFrom: Peter Eisentraut <[email protected]>
To: Dharin Shah <[email protected]>
To: [email protected]
Subject: Re: Fwd: [PATCH] Add zstd compression for TOAST using extended header format
Date: Wed, 17 Dec 2025 16:11:38 +0100
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAOj6k6eSsQ_PTUTxW0upn6wp7tzbvQwqkQco-=+majwX8p6JJg@mail.gmail.com>
References: <CAOj6k6dy2CRVA6Lsb5N59zE-7KNVKt=oYwWyg8ULK8zOOY8e7A@mail.gmail.com>
<CAOj6k6dkseVvZzmEAWvBd6twZsCU0DbN+qeM7CoDuMM3r9doiw@mail.gmail.com>
<CAOj6k6eSsQ_PTUTxW0upn6wp7tzbvQwqkQco-=+majwX8p6JJg@mail.gmail.com>
On 16.12.25 11:51, Dharin Shah wrote:
> - Zstd only applies to external TOAST, not inline compression. The 2-bit
> limit in va_tcinfo stays as-is for inline data, where pglz/lz4 work fine
> anyway. Zstd's wins show up on larger values.
This is a very complicated patch. To motivate it, you should show some
detailed performance measurements that show these wins.
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Subject: Re: Fwd: [PATCH] Add zstd compression for TOAST using extended header format
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