Did you see this: https://issues.apache.org/jira/browse/CALCITE-1737 <https://issues.apache.org/jira/browse/CALCITE-1737> ?
> On Jan 29, 2019, at 8:55 AM, Ben Teeuwen <[email protected]> > wrote: > > Hi all, > > I'm interested in trying out Calcite with the goal of being able to apply > the same SQL statement in 2 different setups. One is an offline batch > setting with a Spark dataframe. So this could be to do basic additions or > subtractions using multiple columns, or datediff operations on 2 timestamp > columns. As it is Spark, the SQL statement could be applied to millions of > rows in parallel. The other setup is in an online setup with Java services > processing individual requests. Spark has its own powerful SQL engine, but > the goal here would be to try and use Calcite and rule out > incompatibilities between the Spark SQL engine and Calcite's engine used in > java land. > > Does anyone have experience with such an approach? I scanned the mailing > archive for messages about Spark but haven't seen it. > > Ben
