[ADMIN] Permissions to schema

[Eduardo Sá dos Reis]

Hi,

I have the structure on Postgre:

database:  dbGlobal

schema1:         sch_sist1     owner sch_sist1:  john

schema2          sch_sist2     owner sch_sist2:  mary


I' m using pgAdmin III.

Is there a way to avoid the mary to access the schema sch_sist1 ?

I don't want that mary see/access the schema of john and I don't want that john 
see/access the schema of mary.

Anybody has a solution.

Thanks a lot.

Eduardo