Merge 'trunk' into 'DBIx-Class-resultset'

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Manual / FAQ.pod

=head1 NAME 

DBIx::Class::Manual::FAQ - Frequently Asked Questions

=head1 General 

=head2 What is the point of this module? Is it a fork of Class::DBI?

This is an alternative to Class::DBI, intended to provide greater
functionality and simplicity.

It is inspired by the Class::DBI framework, and meant to support
compability with it, while restructuring the internals and making it
possible to support some new features like self-joins, distinct, group
bys and more.

=head2 Who's the intended audience for this module?

=head2 What databases does it support?

At least MSSQL, MySQL, Oracle, PostgreSQL and SQLite.

=head2 What's the current status of this module?

This project is still at an early stage, so the maintainers don't make
any absolute promise that full backwards-compatibility will be
supported; however, if we can without compromising the improvements
we're trying to make, we will, and any non-compatible changes will
merit a full justification on the mailing list and a CPAN developer
release for people to test against.

=head2 What's planned in the future?

=head2 Where can I go for support?

  Mailing list: http://lists.rawmode.org/mailman/listinfo/dbix-class/

  SVN: http://dev.catalyst.perl.org/repos/bast/trunk/DBIx-Class/

  Wiki: http://dbix-class.shadowcatsystems.co.uk/

  IRC: irc.perl.org#dbix-class

=head1 PostgresQL Specific Problems

=head2 Can't get last insert id - inserts with serial primary keys fail

Older DBI and DBD::Pg versions fail to correctly handle
C<last_insert_id> correctly, causing code that uses auto incrementing
primary key columns to fail with a message such as:-

  Can't get last insert id at /.../DBIx/Class/Row.pm line 95

In particular the RHEL 4 and FC3 Linux distributions both ship with
combinations of DBI and DBD::Pg modules that do not work correctly.

DBI version 1.50 and DBD::Pg 1.43 are known to work.

=cut