amaliujia commented on issue #1083: [CALCITE-2889] IndexOutOfBoundsException thrown if targetTypes[] contains varargs URL: https://github.com/apache/calcite/pull/1083#issuecomment-469796188 @zabetak In BeamSQL, we support UDF by [this way](https://github.com/apache/beam/blob/master/sdks/java/extensions/sql/src/main/java/org/apache/beam/sdk/extensions/sql/impl/ScalarFunctionImpl.java#L122). We also use Calcite to generate java code for SQL functions (see [here](https://github.com/apache/beam/blob/master/sdks/java/extensions/sql/src/main/java/org/apache/beam/sdk/extensions/sql/impl/rel/BeamCalcRel.java#L149)). Basically `ReflectiveCallNotNullImplementor` is the one to convert UDF in BeamSQL to Expression.
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
