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Alzabo-0.71
River stage one • 2 direct dependents • 3 total dependents
/ Alzabo

NAME

Alzabo and PostgreSQL

DESCRIPTION

This documentation is about what special support Alzabo has for PostgreSQL, as well as what is lacking.

Postgres support is based on the 7.1 releases of Postgres. Alzabo will probably work with the 7.0 releases as well. Of course, features that were added to Postgres as part of the 7.1 releases will not work.

Reverse Engineering

  • Currently, Alzabo does not handle constraints or foreign keys during reverse engineering. This will change in the future.

  • Alzabo cannot determine from the existence of a sequence that the sequence is meant to be used for a particular column unless the sequence was created as a result of making a column's type SERIAL.

    This is because there is no link between the two in the Postgres' data dictionary tables and will probably never change.

Transactions

  • Transactions are fully supported with Postgres.

Outer joins

  • Left and right outer joins are supported.

  • Full outer joins are not supported.

Pre-7.1 Large Objects

  • There is no support for externally stored large objects. Upgrade to Postgres 7.1 or newer, which supports arbitrarily large rows.