Selective SQL pass-through

The IP can be written to select between row-based mode or SQL pass-through query execution modes on a query-by-query basis. To use this flexibility, the IP is registered as a row-based IP but it can examine the query and before execution starts switch the OpenAccess SDK SQL engine to Pass-Through mode. The ability to first look at the query is useful in cases where the data source can handle a limited set of queries but must rely on the OpenAccess SDK SQL engine to handle other queries.

Note: Only SELECT queries are supported for selective pass-through.