The doc for GQSCAN says that "ISGQUERY is the recommended replacement for
the GQSCAN service". But it says nothing about GQSCAN being deprecated -
let alone eventually removed. We've used GQSCAN "forever" (actually since
July 2000), and I need to make some updates to the code that uses it. But
the interface to ISGQUERY is *very* different, looks much harder to use for
my purposes, and in particular does not return RIBs and RIBEs as does
GQSCAN.

So... Given that what I'm doing is a cross-system (SCOPE=SYSTEMS,XSYS=YES)
query on a QNAME/RNAME combo with the RNAME wildcarded:

Is there any clear advantage to converting to ISGQUERY?

Are there performance issues (beyond the general cost of the XSYS=YES)?
Given that ISGRIB comments say that the RIB/RIBE are copied from the GRS
private area to the user-supplied area, it would seem that this would
perform better than manufacturing the new-style return values from them,
*if* the RIB and RIBE are the underlying control blocks used within GRS.

Is there any serious chance that this use of GQSCAN will stop working in
future (yeah, I know - no commitment...)

The RIB and RIBE mappings in macro ISGRIB are classified PI. It's rare for
IBM to change these classifications, but it has happened. Any thoughts on
this?

Thanks.

Tony H.

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