You can't do that in THAT way, but you can use dynamic SQL: test=# select * from drop_role ; t -------- foobar (1 row)
test=*# do $$ declare r text; begin for r in select t from drop_role loop execute 'drop role ' || quote_ident(r) || ';'; end loop; end; $$language plpgsql; DO "Brice André" <br...@famille-andre.be> hat am 19. Oktober 2011 um 12:11 geschrieben: > Hello everyone, > > I would want to implement an SQL query where I would be able to suppress all > information from a registered user. I am currenlty able to suppress everything > except the user role. The name of the role is present in a table and so, I > would want to perform something like this : > DROP ROLE (SELECT ...) > but this is not considered as valid, as DROP ROLE is expecting a name and not > a text field. So, I tried the following, but with no success : > DROP ROLE CAST((SELECT...) AS name) > > So, does someone knows how to handle this problem ? > > Regards, > Brice > -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql