Use the LOAD command to load an object file into the PostgreSQL backend. Once loaded, an object file provides the backend for whatever functionality the file was created. In this way, you can incorporate your own database components (such as types and functions) dynamically. If you do not explicitly load an object file, the backend will load it automatically when a function from the file is called. Currently, only C language object files are supported.
Note: You can also use this command to force the reloading of recently recompiled object files.
The following example loads the object file