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Add catalog information when a Compression Dictionary was created
The compression dictionary date created is currently not available to help identify the age of the dictionary. The age would also help to identify dictionaries create before upgrading to the latest release.
We have a few System Temporal tables that have sensitive data. We need to be able to create column masks on those columns. Currently we get a SQL20474N with Reason Code 17 when we try to run a CREATE MASK on system temporal tables.
Unload should generate the correct load cards to load Temporal Base Tables
Currently the unload utility generates load cards with Temporal Column Names having different names as the DB2 catalog. This causes the load to generate new values for ROW BEGIN, ROW END, TRANSACTION START ID which is incorrect. Having INSYNCH sof...
Improve optimizers cost estimation when recursive table expression invloved
Please refer to case TS004038133. Application developer uses SQL EXPLAIN to compare the cost of different SQL statement and decides which one to use. In one case, they found EXPLAIN reported lower cost for one SQL than other but in actual executio...
allow CREATE FUNCTION with RETURNS TABLE to use SQLPL
Today (in V12 <and maybe earlier>) it is possible CREATE FUNCTION using SQLPL and RETURN a value (of any data type). This is pretty cool.. and powerful. This is useful to perform complex SQLPL operations inside the UDF (LANGUAGE SQL). For ex...
Specia Register to change INVALIDATECACHE default in Db2v12
We have PeopleSoft Payroll application running on Db2 v12 z/OS. We noticed that the default value of INVALIDATECACHE in RUNSTATS has been changed from YES to NO in v12. This change has huge impact on the performance because RUNSTATS for temporary ...
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