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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.
Manage databases that use the R-tree secondary access method
Cannot rename databases that use the secondary access method

Cannot rename databases that use the secondary access method

You cannot rename a database if the database has any tables that were created using the primary access method (also known as virtual table interface) or indexes using the secondary access method (also known as virtual index interface). R-tree indexes are implemented using the secondary access method. Therefore, you cannot rename databases with R-tree indexes.

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