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Extending Informix®Beyond standard relational database objects, HCL Informix® can be extended to handle specialized data types, access methods, routines, and other objects. Informix® includes many built-in extensions that are fully integrated in the database server. Informix® also provides DataBlade® modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for Informix®.
Creating extensionsYou can create user-defined data types, routines, access methods, and other database objects to suit your needs. You can use application programming interfaces to write user-defined routines and applications that access data in Informix® databases.
R-Tree Index User's GuideThe Informix® R-Tree Index User's Guide describes the HCL Informix® R-tree secondary access method and how to access and use its components.
Develop DataBlade® modules that use the R-tree secondary access method
Overview of DataBlade® module development

Overview of DataBlade module development

A DataBlade® module is a software package that extends the functionality of HCL Informix®. It adds new database objects, such as data types and routines, that extend the SQL syntax and commands you can use with Informix.

You define the new database objects that will be included in your DataBlade module, import objects from other modules, and generate the source code, SQL scripts, and installation scripts that make up your DataBlade module.

For example, you can create a DataBlade module that contains spatial data types, such as polygons and circles. The module will probably also include a set of routines that operate on the data types, such as Area and Circumference.

Your DataBlade module might also include the required routines and operator class to enable users to create R-tree indexes on columns of the user-defined data type. This chapter describes how to add this functionality to your DataBlade module.

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