Re: Add jsonb_compact(...) for whitespace-free jsonb to text

From: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
To: Sehrope Sarkuni <sehrope(at)jackdb(dot)com>
Cc: "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Add jsonb_compact(...) for whitespace-free jsonb to text
Date: 2016-04-27 22:46:29
Message-ID: CAKFQuwbf0DCz6Bb+Gjeh9KOXFJ2GCa_xT8H3mqUCuTWFbvAVwA@mail.gmail.com
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On Sun, Apr 24, 2016 at 3:02 PM, Sehrope Sarkuni <sehrope(at)jackdb(dot)com> wrote:

> It'd be nice to have a stable text representation of a jsonb value with
> minimal whitespace. The latter would also save a few bytes per record in
> text output formats, on the wire, and in backups (ex: COPY ... TO STDOUT).
>

>
Attached is a *very* work in progress patch that adds a
> jsonb_compact(jsonb)::text function. It generates a text representation
> without extra whitespace but does not yet try to enforce a stable order of
> the properties within a jsonb value.
>
> ​
This doesn't impact backups unless you do away with the function and change
the output i/o function for the type.​ In that scenario the function is no
longer necessary.

David J.

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