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use spatial datatypes and functions from another database
Using spatial functions is limited to the database in which it is defined. If you have to combine a spatial function with spatial data in 2 different databases you first need to convert 1 datatype to varchar. This is slowing down the performance.
"Enable SQL schema expressions so 32k expression sizes are not required"
Schema expressions can be longer than 32k, since 11.70, but they are broken into a smaller series of expressions in order to support backward capability to 11.50 schema expressions. It would help to have an environment or onconfig variable which a...
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...
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!
Create a cdr client log that logs cdr command start and exit status
Cisco currently uses the CDR_FEATURES LOGCOMMANDS feature and redirects CDR client stderr and stdout to their application log file. The problem is when a CDR command fails due to a client side error, the server message log does not have any indica...
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