Re: making the backend's json parser work in frontend code

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Mark Dilger <mark(dot)dilger(at)enterprisedb(dot)com>, David Steele <david(at)pgmasters(dot)net>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: making the backend's json parser work in frontend code
Date: 2020-01-23 18:05:50
Message-ID: CA+Tgmoa08oskv32jtjkC3qJ56_kKVcF0E1oLYjSKsC=Hinkdaw@mail.gmail.com
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On Thu, Jan 23, 2020 at 12:49 PM Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> Another idea is to use base64 for all non-ASCII file names, so we don't
> need to check if the file name is valid UTF8 before outputting --- we
> just need to check for non-ASCII, which is much easier.

I think that we have the infrastructure available to check in a
convenient way whether it's valid as UTF-8, so this might not be
necessary, but I will look into it further unless there is a consensus
to go another direction entirely.

> Another
> problem, though, is how do you _flag_ file names as being
> base64-encoded? Use another JSON field to specify that?

Alvaro's proposed solution in the message to which you replied was to
call the field either 'path' or 'path_base64' depending on whether
base-64 escaping was used. That seems better to me than having a field
called 'path' and a separate field called 'is_path_base64' or
whatever.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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