Re: proposal: row_to_array function

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: proposal: row_to_array function
Date: 2015-01-16 21:35:45
Message-ID: 54B98431.7000806@dunslane.net
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On 01/16/2015 12:22 PM, Pavel Stehule wrote:
>
>
> There two possible transformations:
>
> row_to_array --> [[key1, value1],[key2, value2], ...]
> row_to_row_array --> [(key1, value1), (key2, value2), ... ]
>
>
> If we're going to go that route, I think it makes more sense to
> create an actual key/value type (ie:
> http://pgxn.org/dist/pair/doc/pair.html) and return an array of that.
>
>
> ok
>
> <http://BlueTreble.com>
>

I think we'd possibly be better off with simply returning a flat array,
[key1, value1, ...]

Thats's what the hstore(text[]) and json_object(text[]) functions
accept, along with the 2D variant, if we want a precedent.

cheers

andrew

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