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1. many customers expect to truncate a table partition without first detach and then drop, and finaly add a new partition with the same definition as the detached partition, because they may design their range partition as "Jan, Feb, ... Dec" with...
New access path for faster first fetch with a good global time
Firstly, I don't know if it is possible. We can encounter this following performance issue : select on a big table with an order by. Depending on the statistics, we can have list prefetchs on an index. If the index is very big, we have to wait a l...
DB2 to add support for Oracle equivalent UTL_RAW package methods.
Oracle provided UTL_RAW to do bit calculation and comparison. After setting DB2 COMPATIBILITY VECTOR for ORA also we don't have any support for these packages in DB2. Oracle's UTL_RAW functions e.g. BIT_AND does not have any limitation on input RA...
ADMIN_TAB_INFO is sloooow and this has been the case for quite sometiome.
Extremely slow when used in a RP environment. Also used by check_upgrade which takes 7+ hours to run. Environment has 2million+ objects, 1 range per day for 3 years. Check_upgrade may be calling check for load pending which used admin_tab_info
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