Select/Insert operations with arrays - Mailing list pgsql-sql

In earlier versions that we used (Version 6.3), we could not use
the select and insert operations with vectors (or arrays). 
Do the select/insert in the new version support arrays/vectors?

In other words, if I have a C-style array aand just pass a 
pointer and the length, will the select/insert read or write 
the entire vector from/to the database.

I really appreciate your feedback.

Thanks a lot
Ravi M