January 2002
Intermediate to advanced
640 pages
16h 39m
English
Content preview from Practical PostgreSQL
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Load
Dynamically loads object files into a database.
Synopsis
LOAD 'filename'Parameters
filenameThe name of the dynamic object file you wish to load.
Results
LOADThe message returned when a dynamic object file was successfully loaded.
ERROR: LOAD: could not open file'filename'The error returned if the specified file was not found. Make sure the PostgreSQL backend is permitted to access the file.
Description
Use the LOAD command to load an object file into the PostgreSQL
backend. Once loaded, an object file provides the backend the required functionality for which
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.
Example
The following example loads the object file
/usr/local/src/lxp/libxpl.so in the lx
database:
lx=# LOAD '/usr/local/src/lxp/libxpl.so';
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