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New feature to have FORCE_DDL_EXEC functionality for all DDL changes
The 12.10 manual states that the FORCE_DDL_EXEC environment variable can be used "to force out other transactions that have opened or have locks on the tables involved in an ALTER FRAGMENT ON TABLE operation". We'd like to see this functionality e...
Allow MAX_PDQPRIORITY to be configurable per user.
We want to Informix to be able to use PDQ but we would not want 3rd party logins to be able to use PDQ and impact processing. The existing onconfig parmeter should be a default is it is not defined for the user.
We raised a support case as follows: Following the recent change in status of Centos, we have customers who wish to convert their Informix servers to Rocky Linux soon. This will be for both IDS 12.10 and 14.10. Can you confirm that IBM/HCL would s...
We need to stay with Informix 12 so that our compiled 4GL will continue to work, but we would like to upgrade to RHEL8. Others have done this and it works for them, but my company has to get confirmation that this will be a supported combination f...
Enhance dbschema to generate SQL for sysuser entries
The sysadmin users is used to store:
PAM trusted users (sysauth)
trusted contexts (systcxusers, systcxattributes, systrustedcontext)
local users (syssurrogates, sysusermap)
Dbschema should be extended to allow generated DDL for:
I was doing DB development in an Ubuntu/Linux enviornment using PERL. PERL has a database abstraction layer called DBI. Supports preparing queries to both MySQL and Informix with no changes. It does rely on a lower layer DB interface driver, for I...
Limit open partitions to avoid very large rsam pool
In systems with a lot of tables informix can have a very large rsam pool. This can cause informix to allocate so much memory it starts swapping or in memory limiting versions (like workgroup, express etc.) to even let the engine crash. Sometimes t...
I'm trying to check if a serial value has reached its upper limit. I noticed the following unpleasant behaviour. In the sysmaster tables sysptnhdr and sysactptnhdr the currently used serial values are in three fields for the datatypes serial, seri...
Need an onmode option to terminate orphaned, tightly coupled global transactions. Onmode -Z does not address this case.
If a Java application that uses tightly coupled global transactions (such as from Geronimo / WebSphere app servers) abnormally terminates, it may leave the global transaction orphaned on the Informix database server. In this case, an onstat -G wil...
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