Fix list for Informix Server and Informix Client SDK 15.0.1.20 Release
Abstract
Informix provides periodic fixes for release 15.0. The following list is the most recent report of defect fixes for customer-reported defects in 15.0.1.20 release. This report combines both Windows and UNIX-specific defect fixes, and is more current than the defect information included in the product release.
Content
Fix Pack 15.0.1.20
Fix release date: 28 October 2026
Download: IBM Fix Central
| KI ID | Known Issue Abstract |
| DT503544 | JSON listener fails with “collection name must not be empty†on databases with a default isolation level or upgraded from an earlier version. |
| DT503296 | ESQL/C application crashes with "Floating exception" when FET_BUF_SIZE is set to a non-default value. |
| DT503055Â | Optimizer ignores the ALL_ROWS directive and picks a slow plan for queries with a large IN list when OPT_GOAL=0. |
| DT502391 | Server threads can appear hung when inserting into tables with partition BLOB columns on AIX. |
| DT497589 | Stored procedure that selects from nested views fails with an assertion failure in itbldscan(). |
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Document Information
Modified date:
29 October 2026