Generally, I'd suggest you take these HSTORE key-value-pairs types and
recast them as a separate table (say, HSTORE (STORE integer primary key,
KEY text, VALUE text) ) and then query (SELECT VALUE FROM {TABLE1} JOIN
HSTORE ON HSTORE.STORE = {TABLE1}.{HSTORECOLUMN} WHERE VALUE = 'some_key';)


On Mon, Mar 17, 2014 at 10:46 PM, Stefan Keller <sfkel...@gmail.com> wrote:

> Hi,
>
> I have a column which contains a string structure taken from the
> PostgreSQL HSTORE key-value-pairs type. This is an example of one
> column value:
>
> "operator"=>"police","name"=>"Zurich","some_key"=>"some_value"
>
> Any suggestions on how to query this most efficiently (like [select
> value from "some_key"])?
>
> Yours, Stefan
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