I found answer. Thank you for everyone who did not reply.
CREATE VIEW depend_view AS SELECT depend.subfunction_id, a.subfunction_file AS x, depend.subfunction_dep_id, b.subfunction_file AS y FROM depend INNER JOIN subfunction a ON depend.subfunction_id = a.subfunction_id INNER JOIN subfunction b ON depend.subfunction_dep_id = b.subfunction_id; "Igor" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED]... > Hi, > > I have following SQL statement which does not report any errors: > > test=# SELECT a.subfunction_file, b.subfunction_file > test-# FROM depend INNER JOIN subfunction a ON depend.subfunction_id = > a.subfunction_id > test-# INNER JOIN subfunction b ON depend.subfunction_dep_id = > b.subfunction_id; > subfunction_file | subfunction_file > ----------------------------+---------------------------- > show_batch_2.php | search_receipt.php > ........... > > But when I try to create VIEW a have following error: > > test=# create view depend_view as SELECT a.subfunction_file, > b.subfunction_file > test-# FROM depend INNER JOIN subfunction a ON depend.subfunction_id = > a.subfunction_id > test-# INNER JOIN subfunction b ON depend.subfunction_dep_id = > b.subfunction_id; > > ERROR: CREATE TABLE: attribute "subfunction_file" duplicated > <<<--------!!!! > > > Please advise where is my mistake. I use: > > test=# select version(); > version > --------------------------------------------------------------------- > PostgreSQL 7.2.1 on i386-unknown-freebsd4.3, compiled by GCC 2.95.3 > (1 row) > > > Thank you, > > Igor ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster