IBM Data and AI Ideas Portal for Customers


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Informix Server

Showing 353

The function LENGTH () also for BLOBs / CLOBs

Unfortunately, there is no SQL statement that returns the size of the blob. You have to use an external program to get such information. I wish the sql function length() worked for BLOBs/CLOBs.
almost 8 years ago in Informix / Informix Server 2 Future consideration

255 rows/page limit should be addressed

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.Thi...
over 1 year ago in Informix / Informix Server 0 Future consideration

Improve readahead performance statistic reporting

Since the improved readahead code was established, onstat -p and the associated SMI tables no longer report all readahead pages nor all usage of those pages so that it is impossible to monitor the efficiency of readahead and so be able to determin...
over 3 years ago in Informix / Informix Server 0 Future consideration

'onstat -g mem' should give a complete picture of all memory usage by an Informix instance

Currently 'onstat -g mem' does not include vp cache information and some other memory structures.Similarly syspools view is missing information too.
about 8 years ago in Informix / Informix Server 0 Future consideration

Alter table that has foreign keys

Abilit to alter tables with foreig keys when referenced tables are opened.
over 8 years ago in Informix / Informix Server 0 Future consideration

Upgrade of secondary server without restore from primary

Assuming we're upgrading a sever which is a primary server in a MACH-11 cluster, it should be able to save all the new page images (of changed pages during the conversion) in the file system. Very similar to what we do in the CONVERSION_GUARD feat...
over 8 years ago in Informix / Informix Server 0 Future consideration

Make adoption of forest-of-trees indices easier with existing large tables

Rebuilding an index as a FOT is not supported using "alter fragment on index init". This would be useful to avoid dropping and later re-adding primary keys and referencing foreign keys.Building a FOT index is not possible in parallel. Building a F...
about 4 years ago in Informix / Informix Server 0 Future consideration

Informix ER: Increase maximum allowed replicates

Our customer uses Enterprise Replication with Informix Server, spanning 530 databases, within 60 instances. We use 11.70 GE. We have hit the maximum limitation of 32746 replicates in the ER domain and it's not enough. We even had to decrease count...
over 5 years ago in Informix / Informix Server 0 Future consideration

CREATE MATERIALIZED VIEW

The materialized view functionality will increase the performance.
over 6 years ago in Informix / Informix Server 0 Future consideration

UTC/GMT timestamp conversion function for Informix database

Informix does not have a UTC/GMT timestamp conversion function.Requirement :---------------------------------1) Cast function to convert from a particular datetime to UTC datetime based on the current timezone2) Cast function to convert from sysda...
over 6 years ago in Informix / Informix Server 1 Future consideration