johnf wrote: > I have a list (or array) of primary keys stored in a field (data type text). > I would like to use the list to retrieve all the data from a table based on > the list. > > my text field contains: > '123,134,343,345' > > I would to do something like the following: > > Select * from table1 where table1.pkid in (select myTextfield from table2) > > So the question is there a simple way to use the list to retrieve my data?
http://www.postgresql.org/docs/8.3/static/functions-matching.html SELECT * FROM table1 WHERE table1.pkid IN ( SELECT x FROM regexp_split_to_table(myTextfield, ',') AS x ); ... but you should consider storing your list in an array instead, or using a more conventional child table with a (pkid, refid) pair list. -- Craig Ringer -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
