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IBM Data and AI Ideas Portal for Customers

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We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:

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BLU Acceleration

Showing 22

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...
over 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 tablesp...
over 3 years ago in Db2 / BLU Acceleration 0 Not under consideration

Re-build synopsis statistics in BLU

Provide a function to rebuild the synopsis table metadata online/offline to improve query performance.
over 6 years ago in Db2 / BLU Acceleration 0 Not under consideration

Provide SYSTEM / UNIQUE collation sequence support for column organized tables when codepage is 819

The lack of support for anything other than IDENTITY collation sequence for codepage 819 makes migration to BLU very difficult for customers who use it.
about 5 years ago in Db2 / BLU Acceleration 0 Not under consideration

Support additional single-byte encodings for column-organized tables

The latest updates to DB2 have added the support of codepage 809 (ISO8859-1) for databases using column-organized tables..This is good for many Western customers, who are able to avoid switching to Unicode (and paying the penalty of 2x or 3x chara...
about 5 years ago in Db2 / BLU Acceleration 0 Not under consideration

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

there is a limitation ( Update and delete operations that use an index scan on a column-organized table are not supported by the FETCH opera...
over 2 years ago in Db2 / BLU Acceleration 0 Not under consideration

Temporal table support for column-organized tables

Currently, a column-organized table cannot be a temporal table because a PERIOD SYSTEM_TIME or PERIOD BUSINESS_TIME declaration is not supported in column-organized tables. This prohibits temporal data management with BLU. We request that column-o...
over 5 years ago in Db2 / BLU Acceleration 0 Not under consideration

Allow data type ROW CHANGE TIMESTAMP in column-organized tables

We need the ability to define columns with data type ROW CHANGE TIMESTAMP in our tables so that we can track when the last change was made. Currently we use normal row based tables which allow this but we want to migrate to column based tables. Wh...
over 4 years ago in Db2 / BLU Acceleration / Data Types 0 Not under consideration

BLU should tolerate Tools and Applications which are currently not BLU-aware

We currently employ with the introduction of db2 v10.5 BLU for our DWH. Our plan is to store almost all data in columns store. Just in exceptional cases tables should be stored row oriented. That's why we have set the registry variable DB2_WORKLOA...
over 7 years ago in Db2 / BLU Acceleration 1 Not under consideration

Support codepage GBK for DB2 BLU

As of DB2 for LUW Version 10.5 Fixpack 7, DB2 BLU still doesn't support non-unicode database, e.g. GBK. We need DB2 BLU to support database in codepage GBK, so that Chinese characters can be internally stored in double-byte, otherwise a data page ...
over 6 years ago in Db2 / BLU Acceleration 0 Not under consideration