The following documents describe advanced topics that are not currently described in the distributed user manuals. Please note that many of these documents are unchanged from previous releases and will reference R11.0 documentaion Extension Point for Server Security (R11.0) Page and Object Encryption (R11.0) External Query Agents (R11.0) Expression Tree Interface (UTF16 & UTF32) Custom Operator Support Parallel Query Engine Customization (R11.0)