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Expand DELETE syntax implementing LIMIT clause and maybe also ORDER BY. Delete syntax can be like: DELETE [FROM] tbl_name [WHERE where_condition ] [ORDER BY ...] [LIMIT row_count ] This limit + order by syntax is already implemented in other major...
We are trying to increase the usage of SP in our system environment. Migrating business code from 4GL to the database.But this process becomes very painful for our developers since the support for SPL is limited. Mainly the inexistence of a native...
Within Informix the username is defined as char(32). The Informix feature "Informix trusted context" enable Informix to be used with Federated Authentication, in such cases the impersonated user is identified using an email address. In view of thi...
When no suitable index is created, the optimizer does an "auto create index" for the query. This proposed index should be printed out to the online.log to help the admin to create the optimized indexes for the queries.
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....
Allow Informix to accept Non PAM aware clients to connect when using PAM PASSWORD mode
Standard Informix Authentication on unix will perform a getpwnam() call to retrieve the encrypted shadow password from the OS, it will then compare an encrypted version of the password supplied by the client against this, and if they match, authen...
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.
Evaluate using io_uring for I/O in Informix Linux Platform
Create some performance tests and evaluate an architecture change in Informix to migrate AIO or Kernel AIO to using kernel io_uring Maybe it's not possible to use io_uring in Informix and nowadays, performance increase from using IO_DIRECT KAIO to...
Allow DDL changes on a table with full row logging
We want to use CDC to replicate data changes to a different system. We do schema changes once a month, and this complicates things a lot. According to our vendor, this is a limitation for Informix only, other source systems can hande DDL changes t...
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