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BLU Acceleration

Showing 30

Avoid SQL0955C Sort memory cannot be allocated to process the statement. Reason code = 3

It would avoid Db2 errors and interruptions. Every customer using Db2 BLU who ran (or will run) into SQL0955 RC3 errors would benefit.
over 1 year ago in Db2 / BLU Acceleration 0 Not under consideration

Section actuals for BLU

Collecting section actuals and compare it with the SQL compiler estimates using the db2caem tool is quite handy to find cardinality mis-estimates in huge plans.
over 3 years ago in Db2 / BLU Acceleration 0 Not under consideration

DB2 BLU Acceleration in DB2 pureScale

Wewould like to see DB2 BLU acceleration on a DB2 pureScale cluster.
over 4 years ago in Db2 / BLU Acceleration 0 Not under consideration


ALTER TABLE LOCKSIZE TABLE is an easy way to save lock list and lock acquire for tables that just get accessed by a single application at a given time.
over 3 years ago in Db2 / BLU Acceleration 0 Not under consideration

System maintained MQTs for BLU MPP

We use DB2 v10.5 DPF for a Warehouse Environment (40TB Data, ~9000 Users, 40 Tsd. Reports per day). We want to migrate the database to DB2 v11.1.1.1 BLU MPP with all tables column oriented. In this case we have checked the functionality for system...
almost 5 years ago in Db2 / BLU Acceleration 0 Not under consideration

Create User Temporary Tables in round robin

Assuming that there is more than one temp tablespace with the same page size and 'IN TABLESPACE' clause is not specified in the DECLARE GLOBAL TEMPORARY TABLE command, then DB2 optimizer should allocate the temp tables across all temporary tables...
almost 3 years ago in Db2 / BLU Acceleration 0 Not under consideration

Support LOB data types for DB2 BLU

DB2 BLU still doesn't support LOB related data types. Some existing databases in DB2 or other RDBMS, such as Oracle, need to be migrated to DB2 BLU and contain some tables with LOB data types. Without LOB data types support for DB2 BLU, they have ...
almost 6 years ago in Db2 / BLU Acceleration / Data Types 0 Delivered

Do not truncate trailing blanks in columnar Group By

BLU columnar engine does not carry trailing blanks in varchar columns during GROUP BY processing. It does not bring non-normalized variant through the grouping operation
about 1 year ago in Db2 / BLU Acceleration 0 Future consideration

Support mixed row/column environments without requiring CUR_COMMIT=ON

We have recently run into a problem when we enable Cur_commit because of the locking behavior expected by some applications (they expect blocking). Therefore, we have to disable CC, but then that app cannot use blu. We want to give our plant the...
almost 3 years ago in Db2 / Tables/Index (Range, MQT, MDC, etc.) / BLU Acceleration 0 Planned for future release

using none unique index to accelerate update and delete on column-organized

there is a limitation ( and delete operations that use an index scan on a column-organized table are not supported by the FETCH operat...
over 1 year ago in Db2 / BLU Acceleration 0 Not under consideration