Re: Extracting JSON data into columns

["David G. Johnston" <david.g.johnston@xxxxxxxxx>]

On Mon, Feb 22, 2016 at 7:48 AM, Ferrell, Denise SDC <denise.ferrell@xxxxxxxxxxxxx> wrote:

Running PostgreSQL 9.3 on Linux.

 

I'm looking for the syntax to extract JSON values into columns from one incoming column in file.

 

Thank you in advance.

Denise

​Syntax is well documented:

​http://www.postgresql.org/docs/9.3/interactive/functions-json.html

​Not tested...​

​WITH json_data (jd) AS (

VALUES ('{"key":"value", "key2":"value2"}'::json)

)​

​SELECT jd->>'key' AS col1, jd->>'key2' AS col2

FROM json_data​

Also useful is the:

json_populate_record(...)

function.

Try them and ask specific questions if you still have them.  Incorporating a self-contained example like mine lowers the bar for others to provide useful help.

Also consider upgrading to 9.5 if you expect to do heavy JSON work - features for this type have been being added at a good clip these past couple of years.

David J.