Content Provider filtering query, filtering Cursor

Question

Hi,

I got following problem, I need to use a Content Provider to read a Database of an other App. first I want all rows, and after analyzing the data only e.g. the rows from _id = 1, 3 and 5.

how can I call a Content provider and select only these rows?

or is it possible to create a subset Cursor form an given Cursor?

Thanks in advance.