IBM Data and AI Ideas Portal for Customers


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Informix Server

Showing 445

Informix ER: Increase maximum allowed replicates

Our customer uses Enterprise Replication with Informix Server, spanning 530 databases, within 60 instances. We use 11.70 GE. We have hit the maximum limitation of 32746 replicates in the ER domain and it's not enough. We even had to decrease count...
almost 9 years ago in Informix / Informix Server 0 Not under consideration

Allow Informix to kill sessions not only limited by session-id

Informix should be able to kill sessions not only limited by session-id:For example: If a admin should kill sessions from a specific user or host a script is needed. So it would be helpfull if onmode -z would accept following syntax for example:$ ...
almost 5 years ago in Informix / Informix Server 0 Not under consideration

Add onconfig parameter to not allow slow alters.

Add an onconfig parameter so that slow alters are not allowed by default. This is to prevent outages for customers from long transaction rollbacks.
almost 4 years ago in Informix / Informix Server 0 Not under consideration

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 1 year ago in Informix / Informix Server 0 Not under consideration

Support for datetime with timezone

Informix currently lacks an SQL standard datatype to store datetime/timestamp with timezone. This datatype is supported on other databases with different datatypes names: “TIMESTAMP WITH TIME ZONE/LOCAL TIME ZONE” in Oracle “TIMESTAMP WITH TIME ZO...
about 1 year ago in Informix / Informix Server 0 Under review

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 1 year 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 1 year ago in Informix / Informix Server 0 Not under consideration

Do not allocate MGM memory to UPDATE STATISTICS MEDIUM/HIGH with PDQ if index is used for sort

If an UPDATE STATISTICS MEDIUM/HIGH statement with PDQ is run, Informix will allocate memory for sorts from the memory grant manager (MGM). This happens regardless of whether there is any sorting to do. If a single indexed column is specified in t...
over 1 year 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 1 year ago in Informix / Informix Server 1 Not under consideration

MSG_DATE format should follow $DBDATE if defined

Several customers would like the format of the date written to online.log when we have the MSG_DATE parameter defined/activated to follow the format of DBDATE.Currently it seems to follow the American standard (MONTH / DAY / YEAR2).
about 8 years ago in Informix / Informix Server 1 Not under consideration

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