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Officially support and optimize performance from Federation (Db2 Linux/Unix/Windows) server to Apache Cassandra databases. We need to support as many data sources as possible as the move towards non-homogeneous data ingestion continues.
We use a replication solution which utilizes DB2 LUW Federation as a link between DB2 z/OS (source database) and Postgres (target database). So the picture is as follows: SQL Replication 11.4 -Db2 z/OS 12 on mainframe, -Db2 LUW Federation 11.5.8, ...
Enhance Db2 Federation to support LOBs as remote procedure parameters
Currently LOBs are not supported as an input/output parameters for a remote stored procedure in Oracle via federation. This creates a limitation of 32k (VARCHAR2) at the moment. It would be useful to pass larger strings or XML and be able to map t...
Enhance Db2 Federation to support pushdown of CSE to Oracle
There is a need to support the pushdown of CSEs (Common Subquery Expressions) as part of the federation to Oracle databases. This limitation has existed for quite a while and there has been an ongoing request for this functionality for years.
Add support in Db2 Federation for join and aggregation pushdown for MongoDB
Currently, the driver for use with MongoDB does not support the $lookup operator which would allow for the pushdown of the joining of two or more collections to the source DB. Adding support would allow for joining collections at the source and re...
Add support for a CLOB data type for MongoDB federation
Currently a long string or text field greater than 32k is truncated when fetching from MongoDB. This limits the data that can be retrieved and processed via Federation from MongoDB and other NoSQL data sources.
The next major release of Oracle (23c) is due out this year (2023) and customers will start to migrate their federated source databases to the new release. We need to ensure that we certify compatibility as soon as possible to keep up with the tec...
Change stored procedure SYSPROC.NNSTAT to use method 2 for ODBC based nicknames
The SYSPROC.NNSTAT stored procedure uses method 1 for automatic, asynchronous statistics collection for ODBC based nicknames.This results in lack of statistics being collected, leading the optimizer to derive at inefficient access plans.
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