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Change stored procedure SYSPROC.NNSTAT to use method 2 for ODBC based nicknames
The SYSPROC.NNSTAT stored procedure uses method 1 for automatic, asynchronous statistics collection for ODBC based nicknames.This results in lack of statistics being collected, leading the optimizer to derive at inefficient access plans.
Federation to support Spark in Databricks platform
Our enterprise data lake has Spark in Databricks and have many projects/ applications waiting to access these datasets from datalake for their use cases, using Federation server Nicknames. We did a quick test in our lab for which we were able to c...
Copy and use full distributed stats available for federation from DB2 LUW to DB2 LUW
We use federation to check audit records on db2 blu and match then to financial record on Peoplesoft. All treatments are executed from financial DB (row organized), and pb is that nicknames do not take into account distributed stats nor colum grou...
on DB2 LUW , Create all indexes on nicknames, including those with key greater than 1024 bytes
When I create a nickname on a remote table with an index and the index key is greater than 1024 bytes, the index spécification is not created on the local database : There is no warning for this when the nickname is created, nothing in db2diag.log...
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