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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Post ideas and requests to enhance a product or service. Take a look at ideas others have posted and upvote them if they matter to you,

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Tables/Index (Range, MQT, MDC, etc.)

Showing 96

DB2 currently committed semantics available in a pureScale environment

[Background]Customer chose DB2 pureScale as their enterprise-level integrated database and is building four members and two CFs as their pureScale environment. The important keys DB2 pureScale chosen by customer are : - flexible application workl...
over 4 years ago in Db2 / Tables/Index (Range, MQT, MDC, etc.) 0 Delivered

Add the hidden attribute for index

我们希望给索引添加一个属性visible on/off比如:ALTER INDEX VISIBLE ON (默认属性)ALTER INDEX VISIBLE OFF (索引不可见)当索引不可见以后优化器无法使用不可见的索引,如果需要,直接alter index...
over 4 years ago in Db2 / Tables/Index (Range, MQT, MDC, etc.) 0 Not under consideration

Detect corrupted synopsis tables online

There is a need to report all corrupted synopsis tables online.Currently, db2dart /crs can do it per table and it's done offline.

Increase the number of REORG-recommended operations allowed before a full offline reorg must be performed

The current documentations in v11.5 indicate that only 3 units of work containing REORG-recommended operations are allowed."There can be up to t...
about 1 year ago in Db2 / Tables/Index (Range, MQT, MDC, etc.) 0 Future consideration

Index for a subset of rows

Possibility to index only specific rows of one or more columns. This could be implemented with a WHERE clause in the index create statement and would rsult in a tiny index for exactly the rows you are interested in.
almost 7 years ago in Db2 / Tables/Index (Range, MQT, MDC, etc.) 0 Not under consideration

Excessive DBHEAP by BLU compression dictionaries

In current design, when SQL statement accesses a table, the compression and expansion dictionaries of that table will be read into DBHEAP and kept there until database deactivation. For column-based table, the memory consumption may up to 100MB. i...
about 5 years ago in Db2 / BLU Acceleration / Tables/Index (Range, MQT, MDC, etc.) 0 Not under consideration

Real global CGTT (not SESSION local)

SAP BW needs to materialize data into persistent (regular) tables to be able to access it from multiple session (connections). CGTT and DGTT in Db2 cannot be accessed from multiple sessions/connections. Therefore those temp tables that don't requi...
over 3 years ago in Db2 / Tables/Index (Range, MQT, MDC, etc.) 0 Not under consideration

Enable compression for LOBs that are not inline

Customer would like non-inline LOBS to also be compressed, as inline LOBs can currently be. Many other datatypes can be compressed and there are many large (up to 20MB) LOBs that are stored outside the table that would not eat up so much space if...
over 2 years ago in Db2 / Tables/Index (Range, MQT, MDC, etc.) 1 Not under consideration

Make online REORG respect UTIL_IMPAT_LIM

Currently, an online REORG will run as fast as it can (but I think limited to a single thread).It would useful if we made it respect the utility throttling limit that we have in place for other types of maintenance activities (runstats, backup, re...
over 2 years ago in Db2 / Tables/Index (Range, MQT, MDC, etc.) 0 Not under consideration

Support synchronous detachment of a table partition

Starting with DB2 9.7(?) the detachment of table partitions is handled asynchonously. To simulate synchronous behaviour a complicated work around has to be put in place. Such a behavior could be triggered by a new DML keyword such as ASYNC.
almost 6 years ago in Db2 / Tables/Index (Range, MQT, MDC, etc.) 0 Not under consideration