Re: generating json without nulls - Mailing list pgsql-sql

From Tim Dudgeon
Subject Re: generating json without nulls
Date
Msg-id 554B84C0.1070007@gmail.com
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In response to Re: generating json without nulls  (Andreas Joseph Krogh <andreas@visena.com>)
Responses Re: generating json without nulls  ("David G. Johnston" <david.g.johnston@gmail.com>)
Re: generating json without nulls  (Andreas Joseph Krogh <andreas@visena.com>)
List pgsql-sql
That's not going to work. I want the row, I just don't want the values that are null.

Tim

On 07/05/2015 16:16, Andreas Joseph Krogh wrote:
 På torsdag 07. mai 2015 kl. 12:56:42, skrev Tim Dudgeon <tdudgeon.ml@gmail.com>:
Hi All!
I'm using the postgres json functions to generate json for values in a
table.
Something like this:

SELECT row_to_json(a_table) FROM a_table

But my data has lots of null values and that results in json attributes
like this:

"colname":null

I want to exclude those values from the json and only include non-null
values.
Any idea how to best go about this?

Tim
 
WHERE colname IS NOT NULL ?
 
--
Andreas Joseph Krogh
CTO / Partner - Visena AS
Mobile: +47 909 56 963
 

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