Does Postgresql 8.4 supports all the functions supported by Advanced postgres plus server

Dear All,

Previously we configured Advanced Postgres Plus server for our web application...

Now the same is configured with Postgresql 8.4 since Advanced Postgres plus is a licensed version...

But most of the functions and sql queries are not working with Postgresql 8.4.

What should I do to make things fine with Postgresql8.4..

Is there any add-ons or plugins available for Postgresql8.4 to support Postgres plus functions...

Please suggest me..

Postgres Plus Advanced Server has a Oracle Compatibility and some interesting/important features which is not available in PostgreSQL 8.4.

What are the functions and SQL Queries which are not working with PostgreSQL? Please share.