SQL Engine Parse Tree API

This section describes a special set of OpenAccess SDK API functions 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 section.

• Performing table pushdown.

  Please also refer to About Table Expression Pushdown in the OpenAccess SDK Programmer's Guide for additional information on implementing table pushdown.

• Retrieving more information through the parse tree than is provided through the standard OpenAccess SDK SQL engine core API functions that are described in OpenAccess SDK SQL Engine Core Functions API.