standalone 1.6 knn join

[petrospgithub]

I am trying to execute the SQL examples from Branch: simba-spark1.6 in Branch: standalone-1.6 (e.g.
SELECT * FROM point1 KNN JOIN point2 ON POINT(point2.x, point2.y) IN KNN(POINT(point1.x, point1.y), 3)
),
but I get errors like "Exception in thread "main" java.lang.RuntimeException: [1.55] failure: ('' expected but identifier KNN found" or "Exception in thread "main" java.lang.RuntimeException: [1.54] failure: ('' expected but identifier RANGE found"
It seems to be a problem in parser or in expression. Am I doing something wrong?

[dongx-psu]

In the standalone version, SQL parser is not extended as the original Spark SQL parser is not quite extensible. As a result, examples in simba-spark-1.6 with extended SQL expressions will not work in the standalone versions.