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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.
DataBlade® Developers KitThe DataBlade® Developers Kit (DBDK) guides contain information about the tools you can use to develop and package DataBlade® modules, which extend the functionality of HCL Informix® databases.
DataBlade® Developers Kit User's GuideThe HCL Informix® DataBlade® Developers Kit User's Guide describes how to use tools to develop and package DataBlade® modules.
Programming DataBlade® module routines in CThis section contains information to help you edit and compile C language source code generated by DataBlade®.
Edit opaque type support routines in opaque.cThe following subsections describe the code BladeSmith generates for each routine and modifications you might need to make to the generated code.
Comparison functionsThe HCL Informix® database server calls DataBlade® module comparison functions to compare two opaque type values.
R-tree comparison functionsVersion 4.0 of BladeSmith does not generate code for R-tree comparison functions.

R-tree comparison functions

Version 4.0 of BladeSmith does not generate code for R-tree comparison functions.

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