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We experience -21005 errors typically during loading data to the database. The error (undocumented) means that at least one character is not supported by database locale. Unfortunately it is not sufficient to correct input data fast: there is no f...
Some option to disable Repeatable Read. At least on the database level if not the instance level. Once set any set isolation to Repeatable Read statement would either return an error, or be transformed into Committed Read, or just be ignored, what...
the OS_MEM_FREE Column from Sysmaster:SysMachineInfo is Misleading on AIX
Take for example the following query: select os_mem_free from sysmaster:sysmachineinfo; This returns the amount of free memory on the OS in bytes. Weappear to get this information from the same function thatgathers that info for OAT (via the SMI q...
Informix Query Engine generates bad query/explain plan
There are situations where two or more columns from the same table are related to each other. For example, product_type and product_code from the products table are related, since only certain product_code values can be associated with a given pro...
SYSTEM: Informix on zLinux on ZVM 6.1 zLinux 11.2Action: Multi Instance (Residency) performance issues Informix Enterprise server is used for our Electronic Court system at the State of Mississippi. In order to save cost on system resources we dec...
Extension to the ODBC driver to have support for extended data types such as HTML. This issue is with all platforms and all CSDK versions. However, for your reference, we have tried this on below CSDK and IDS version.Database Version:Informix Vers...
Query performs poorly due to missing column group statistics
SQL chose hash join instead of index join, and performs poorly. The defect number is "idsdb00496878". It's identified to be an issue of "missing column group statistics". Please help to fix it. Thanks!
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