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Allow parallel offline table reorg of range partitioned tables with non partitioned indexes (NPI)
Offline (classic) table reorgs might still be necessary in certain scenarios and can run for a very long time for huge tables (>24h). It is very hard to find a suitable window in a 24x7 System. Offline table reorgs - which have at least one non...
Reorg Utility Progress data is missing in db2 list utilities and db2 list utilities show detail command
The db2 list utilties and db2 list utilities show detail command will not display the Reorg utility progress. 1) The command will display the Runstats progress details for the table 2) The command will display the Load progress details for the tab...
Provide an external interface to check for manual runstats statistics collection
DB2 currently provides AUTOMATIC STATISTICS COLLECTION as part of automated table maintaince which uses an internal evaluation algorithm to determine the necessity to perform a (then automated) RUNSTATs collection. We are asking for an external me...
Reduce Time Required for Online(Inplace) Reorg for huge tables
1) Inplace reorg will take time more for the tables with huge data say for example 1 TB 2) To Reduce the time for this we want to avoid full table scan hence we need to look in portions of the data in a table where it is getting fragmented 3) Henc...
Need to support inplace reorg on partitioned table with global indexes
This is critical in a 2 sense; 1) Performance The customer has many range-partitioned table with global indexes and most of them left unreorganized because INPLACE REORG on Inplace reorg on range-partitioned table with a global index is not suppor...
Currently BLU CDE tables only have the RECLAIM EXTENTS option of REORG enabled. This does not physically move rows and therefore REORG cannot reclaim extents unless 100% of the rows in an extent have been deleted (via deletes or BLU updates). Also...
Currently you can create NOT ENFORCED primary keys but the optimizer will then always treat these as trusted. This causes problems when the constraint is violated but a filter includes all PK columns since the engine will return only one row even ...
Enabling Restrict on Drop clause logic in create table command for db2 LUW
There is a feature called "Restrict on Drop" that should be used by the database designers while creating a table for the db2 LUW database
1) If a database designer uses this "Restrict on Drop" clause for the creation of the table then the
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