External Libraries

Learn about using external libraries to supply prefiltering and term breaking for documents.

• Pre-Filter and Term-Breaker External Libraries
  SAP Sybase IQ can use external pre-filter and term-breaker libraries written in C or C++ to prefilter and tokenize the documents during index creation or query processing. These libraries can be dynamically loaded into the process space of the database server.
• External Libraries on Multiplex Servers
  All multiplex servers must have access to the pre-filter and term-breaker external libraries.
• Enable and Disable External Libraries on Startup
  SAP Sybase IQ provides the -sf startup switch to enable or disable loading of external third-party libraries.
• Unload External Libraries
  Use the system procedure dbo.sa_external_library_unload to unload an external library when the library is not in use.