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Informix documentation for oncheck command should be crystal clear
Informix documentation for oncheck command does not explain clearly that this command should be run only during a maintenance window or during an off-hours period because the oncheck utility places a shared lock on system catalog tables when the d...
We are experiencing locking errors during IBM Informix Dynamic Server syspurge causing a failure to complete syspurge specifically with tables using interval fragmentation. We understand that currently IBM cannot guarantee that there...
use raw table to bulk load/huge files in Informix cluster
raw table load and copy of raw table data availability read only secondary, RSS sec. in a HDR cluster. A big one for us. How do we load billion + row table in a HDR cluster without consuming too many logical logs? Is there a way to load a raw tabl...
Informix version 12.10.FC13 - on Solaris server I want to use different BACKUP_FILTER settings for onbar and ontape.
I use onbar for daily backups and logs and ontape for syncing RSS.
For onbar - BACKUP_FILTER = /opt/csw/bin/pigz -1 -p 2 -b 25...
Clear Indication when RSS_FLOW_CONTROL or SDS_FLOW_CONTROL is actively applied
When RSS_FLOW_CONTROL or SDS_FLOW_CONTROL are set to a value other than -1 Informix will try to limit log activity on the primary server so that the secondary servers do not fall too far behind. There is no easy way to know or report on when this ...
Improve performance on multifact query on an informix database
We make Cognos reports on multifacts creating multifact queries with full outer join. To keep the query execution time low, we need absolutely the enhancement/fix be implemented in the next informix fixpack 12.10. It is unacceptable when the compe...
Informix has a rows/page limit of 255 rows/page. Perhaps this was not a problem originally but over time we have seen new features: larger page sizes (up to 16 kB against 2 kB or 4 kB previously, dependent on operating system). compression option....
Automatic conversion of ifx_loc_t (TEXT/BYTE) to/from ifx_lo_t (CLOB/BLOB)
We have legacy ESQL/C code using ifx_loc_t to handle TEXT/BYTE columns. Customers want now to replace TEXT/BYTE by CLOB/BLOB columns in the database... and we would avoid to touch our ESQL/C code. Informix can support simple type conversion. For e...
Perform update statistics based on selected Fragments of a table
This idea is to run update statistics based on selected fragment(s) to refresh table update statistics on latest or selective fragments only. As there are considerable number of fragmented transactional tables are located under current databases t...
Column level encryption, an option to cleanup passwords on certain/all rows for DBSO or Informix
All users which are granted permissions for insert/modify data into tables are also
allowed to use their own password for column level data encryption. But not all user
are their whole lifetime in the company and move.
What happened with their ...
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