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Even with isolating this UDF to a separate WLM AE or a periodic WLM AE REFRESH, the calls to JSON2BSON UDF will only keep increasing to a point where the storage is exhausted and hit -904 error again. Once it hit this error, subsequent calls will fail until a WLM AE REFRESH is done.
This UDF needs to be improved/reworked. Just sharing one of our developer's opinion on this:
"We could potentially ask IBM to provide a lighter version of JSON2BSON with say just 1MB or 2MB output. So that way the probability of running into storage issue can be drastically reduced. They can call it JSON2BSON_1M, JSON2BSON_2M so we know what to use. In most of the cases, this is sufficient.
But even with the above change, pure JSON_TABLE parsing capability is nowhere comparable to XMLTABLE featureset. It provides very limited parsing options, which in turn forces us to use JSON2BSON more extensively. "
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