Use native filters or IBM® Rational® Publishing Engine filters
to limit the amount of processed data. Not all data sources support
native filters, but use native filters whenever you can.
There are two ways to filter data:
Not all data sources support native filtering. You cannot define
a native filter for data sources accessed through the Generic XML
input driver of Rational Publishing Engine.
The only exception is for the data sources where the filtering can
be specified in the URL.
Tip: Use native filters whenever possible. Native filters
are more effective and generate document faster than Rational Publishing Engine filters.