IBM Data Platform Ideas Portal for Customers


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Search results: Informix

Showing 187 of 2588

Flag high volatile tables as 'VOLATILE' and access those tables differently than normal tables by the query optimizer

A volatile table is defined as a table whose contents can vary from empty to very large at run time. In other words , statistics data is often out of date and may result in wrong access plans by the optimizer and subsequently may have lock the ent...
over 5 years ago in Informix / Informix Server 0 Not under consideration

insert into table default values

A number of database vendors offer insert into table values() or insert into tables default values;
about 9 years ago in Informix / Informix Server 0 Not under consideration

use raw table to bulk load/huge files in Informix cluster

raw table load and copy of raw table data availability read only secondary, RSS sec. in a HDR cluster. A big one for us. How do we load billion + row table in a HDR cluster without consuming too many logical logs? Is there a way to load a raw tabl...
about 5 years ago in Informix / Informix Server 0 Not under consideration

temp Dbspace in RAM

We make high use of temp. Tables in our applications. With todays hardware availability it seems reasonable to me to hold the complete tmp. dbspace in the RAM (or RAMDISK). Unfortunately this is not supported by Informix IDS directly. Advantages o...
over 8 years ago in Informix / Informix Server 3 Delivered

A tool to copy/synchronize database schemas between environments.

A tool to copy/synchronize database schemas between environments. Dbschema does not help if a test environment needs a schema refresh. A tool is needed to unload the schema and then apply the schema into another environment generating with not jus...
over 2 years ago in Informix / Informix Server 0 Not under consideration

UPDATE STATISTICS MEDIUM/HIGH with PDQ should favour use of indices for sort when more than one column is specified

Currently (in my testing) any UPDATE STATISTICS MEDIUM/HIGH statement with PDQ specifying more than one column will not use indices for sort and will instead scan the table, write to temporary files and sort. This is true even when all columns spe...
over 2 years ago in Informix / Informix Server 0 Not under consideration

Sort data calculations should not be used to determine number of passes for UPDATE STATISTICS MEDIUM/HIGH statements where an index is used, fix misleading explain output

UPDATE STATISTICS MEDIUM/HIGH can be used with an explain option. The explain file always shows a sort data calculation which then determines the number of table scans (passes) the database engine will undertake. These are calculated before any de...
over 2 years ago in Informix / Informix Server 0 Not under consideration

Avoid UPDATE STATISTICS [LOW] sampling failures due to data skew

If onconfig parameter USTLOW_SAMPLE is set, sampling will be used for all UPDATE STATISTICS LOW commands. On some tables this will always or nearly always fail due to data skew, printing a message like: Warning: update statistics low using samplin...
over 2 years ago in Informix / Informix Server 1 Not under consideration

Support for common table expression (CTE)

Support for common table expression (CTE)
over 9 years ago in Informix / Informix Server 1 Delivered

InformixHQ support for Large tables as part of the 15.0 release

For Informix 15.0, InformixHQ needs to support the creation of large tables through the "Create Table" option and be able to distinguish between small and large tables on the table information page.
11 months ago in Informix / Informix Server 1 Delivered

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