Ken, Calcite works with PostgreSQL. Not sure what is wrong with your setup, though.
I can suggest two ways: 1) You can try running Calcite's integration tests against PostgresSQL. Here's relevant documentation: http://calcite.incubator.apache.org/docs/howto.html#running-tests , http://calcite.incubator.apache.org/docs/howto.html#running-integration-tests The connection itself is here: https://github.com/apache/incubator-calcite/blob/master/core/src/test/java/org/apache/calcite/test/CalciteAssert.java#L644-L650 There is an automated script that creates virtual machine with PostgreSQL, so you can inspire. 2) We can look into the error if you a sample github project that shows the error you are running into. Vladimir
