Re: jsonb concatenate operator's semantics seem questionable

On 2015-05-24 12:17:35 -0700, Peter Geoghegan wrote:
> Having gone to the trouble of making the parser support this stuff (in
> a way that makes us not follow the SQL standard in a couple of
> places), we ought to have a similar capability for jsonb. I haven't
> looked into it, but it seems like a good project for 9.6. I'm not
> volunteering to undertake the project, though.

I'm not convinced. The array stuff requires ugly contortions in a bunch
of places, and it's likely going to be worse for jsonb.

Greetings,

Andres Freund