RE: [GENERAL] Re: More PostgreSQL stuff

> Martin Schulze wrote:
> >Hi Oliver!
> >
> >I have some more questions wrt. PostgreSQL.
>
> Forwarded to PostgreSQL list, since I cannot answer them.
>
> > . Why does pg_dump only write some SQL commands in capital letters
> > but not all? I wonder if that's intentional. Please look at
> the
> > following excerpt. I would have expected CHAR, VARCHAR, INSERT
> > INTO, VALUES etc. to occur in capital letters.
> >
> > CREATE TABLE zeitungen (name char(30), typ char(10), ...
> >
> > insert into zeitungen values ('Mallorca Immobilien
> ',...
CAPS/no-CAPS are just a preference of the coder's of pg_dump. If you
want you can go through the source of pg_dump and uppercase all the SQL
and recompile.

> >
> > . I wonder how one could add or remove columns from existing
> tables.
> >
> > With mSQL this was possible with a trick. You had to dump the
> > whole table but you could tell the dump program to add dummy
> fields
> > or to leave out existing fields. Is there any such possibility
> > with PostgreSQL?
You can do a select into a temp table with the added columns, drop the
old table the rename the temp table to the old name. You'll also have
to recreate your indexes, triggers, and rules.
-DEJ