Re: [RFC] SLIM Data Type - Compact JSON Alternative (17-62% smaller)

From: Andreas Karlsson <andreas(at)proxel(dot)se>
To: Marco Matteucci <marco(dot)matteucci(dot)1972(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: [RFC] SLIM Data Type - Compact JSON Alternative (17-62% smaller)
Date: 2026-01-14 01:53:28
Message-ID: 1db1e0a3-7c77-4827-a3cc-6d30adbc3102@proxel.se
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On 1/10/26 5:28 PM, Marco Matteucci wrote:
> I'd like to propose a new data type for PostgreSQL: SLIM (Structured
> Lightweight Interchange Markup), a compact alternative to JSONB that
> achieves 17-62% storage reduction while remaining human-readable.

Unless this gets much wider adoption in the general dev ecosystem I do
not think it belongs in core. This is better as a third dparty extension.

Andreas

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