The following bug has been logged online:
Bug reference: 5389
Logged by: Timothy Seever
Email address: tim.seever@gmail.com
PostgreSQL version: 8.3.5, others
Operating system: Linux
Description: Column order on dump/reload broken from defined setof
function
Details:
Adding a column to an inherited table in-place works as expected with the
combined table/etc. However on dump/reload the physical order changes, so
any? predefined select from a setof function pulling from the combined table
will result in a mismatch.
For example:
table a:
col1 text
table b:
col2 date
table c: (inherits a&b)
ALTER table a add column col3 int;
table c now has col3 on the end physically
On dump/restore, it's reordered to the correct place based on the inherited
table... which is fine, except in the following:
--Yes, the following is pointless as is, but with arguments less so
CREATE FUNCTION testfunc() RETURNS setof tablec AS $BODY$ SELECT * FROM
tablec; $BODY$ LANGUAGE 'sql' STABLE;
CREATE VIEW xyz AS select * FROM testfunc() c(col1, col2, col3) where
col2='2010-01-01'::date;
pg_dump dumps the view with the existing label/column order, so upon restore
it's misaligned since it will now be col1, col3, col2 in table c
I'm not sure if there's some additional syntax causing it, but that's
basically what appears to be happening
