Bryan Pendleton wrote:
Why did you pick 10 Meg as the new max value? Was that arbitrary, or does it derive from some other fundamental limit?

In the DDM manual that I have (version 3 volume 3, which I think is from 2004) the max value for QRYBLKSZ is listed as "MAXVAL 10,485,760 (10M)". Also, in the DRDA manual for the same year, under the heading "Simplified Query Processing Rules", there's the following quote:

"Blocking applies only to the QRYDTA reply objects. Each query block is a QRYDTA DSS. The maximum query block size value allowed in the qryblksz parameter is increased from 32K to 10M, thus accommodating the larger data volumes required by modern, more data-intensive applications."

I'm not sure if these are the most recent versions of the manuals, but I think this is probably where the 10M limit comes from...

Army

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