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Re: json api WIP patch

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: json api WIP patch
Date: 2013-01-31 22:20:13
Message-ID: 510AEE1D.6090608@dunslane.net (view raw or flat)
Thread:
Lists: pgsql-hackers
On 01/31/2013 05:06 PM, Peter Eisentraut wrote:
> On 1/10/13 6:42 PM, Andrew Dunstan wrote:
>> This updated patch contains all the intended functionality, including
>> operators for the json_get_path functions, so you can say things like
>>
>>      select jsonval->array['f1','0','f2] ...
> I would like to not create any -> operators, so that that syntax could
> be used in the future for method invocation or something similar (it's
> in the SQL standard).


This is the first time I have heard that we should stay away from this. 
We have operators with this name in hstore, which is why I chose it.

Have we officially deprecated '->'? I know we deprecated "=>", but I 
simply don't recall anything about '->'.

>
> I also don't find the proposed use to be very intuitive.  You invented
> lots of other function names -- why not invent a few more for this
> purpose that are clearer?
>
>


I'm happy to take opinions about this, and I expected some bikeshedding, 
but your reaction is contrary to everything others have told me. Mostly 
they love the operators.

I guess that '~>' and '~>>' would work as well as '->' and '->>'.


cheers

andrew


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