ChoonSoo Park wrote: > Each function returns key/value pairs from hstore type. > Is there any opposite function that returns hstore type from key/value rows? > > I know hstore (text[], text[]) can construct it. Is there any other choice? > > I have a table with ID & Description columns and want to return hstore type > (ID1=>Desc1,ID2=>Desc2,....) that matches a query condition. >>From top of my head, this is the only query I can think of > > SELECT hstore ((SELECT array(SELECT CAST(ID as TEXT) FROM T1 WHERE ....)), > (SELECT array(SELECT Description FROM T1 WHERE ...))) > > But I don't want to run the same where condition twice.
You could try: select hstore(array_agg(CAST(ID as TEXT)), array_agg(Description)) from T1 where ...
I don't have hstore loaded but that seems like it should work.
