This chapter describes a set of OpenAccess SDK API methods that your IP can call for the following purposes:
• Working in SQL pass-through mode
Note: An IP that works in SQL pass-through mode must use only the methods in this chapter.
• Performing table pushdown
Please also refer to Chapter 6 in DataDirect OpenAccess SDK SQL Engine Programmer’s Guidefor additional information on implementing table pushdown.
• Retrieving more information through the parse tree than is provided through the standard OpenAccess SDK SQL Engine API methods that are described in OpenAccess SDK SQL Engine core methods for .NET.