IBM Data and AI Ideas Portal for Customers


This portal is to open public enhancement requests against products and services offered by the IBM Data & AI organization. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


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Informix

Showing 538

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...
almost 2 years 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...
almost 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...
almost 2 years ago in Informix / Informix Server 1 Not under consideration

Config for the server to refuse to start if shared memory segments do not use huge pages.

When shared memory segments are not using huge pages there can be performance impact I would like an option for the engine to abort startup similar to FULL_DISK_INIT=0 if huge pages cannot be used for shared memory segments. Scenario: sysmaster sy...
almost 5 years ago in Informix / Informix Server 0 Not under consideration

ifxclone to not change BUFFERPOOLS

ifxclone to not change BUFFERPOOLS when running.
almost 2 years 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

Allow DDL changes on a table with full row logging

We want to use CDC to replicate data changes to a different system. We do schema changes once a month, and this complicates things a lot. According to our vendor, this is a limitation for Informix only, other source systems can hande DDL changes t...
over 3 years ago in Informix / Informix Server 0 Future consideration

extended ESQL/C login structure for solving password length problem

Status: In an application using ESQL/C authentication with instance users, a user can change his password by using sql with a passwort length greater than the 18 character limit imposed by the struct InetLogin (see case TS003855467). After the cha...
over 4 years ago in Informix / Informix Client Products 1 Not under consideration

Add onstat -g vpcache detail to show breakdown of usage e.g. smx buffers

. When the vp-cache grows to gigabytes we need to see why it is growing. Currently shared memory dumps have to be sent to HCL for analysis. Propose 'onstat -g vpcache detail' to show what the vpcache on each cpu vp is being used for e.g. smx buffers.
almost 2 years ago in Informix / Informix Server 0 Not under consideration

For RSS and HDR nodes partition the apply work by transaction id instead of partnum.

For RSS and HDR nodes currently the apply work is partitioned across threads by partnum, We would like the option to partition the work across apply threads by transaction id. Currently RSS apply threads have to syncronise with the other apply...
over 2 years ago in Informix / Informix Server 0 Future consideration

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