Hi All, We have security type information that we want to bring into the optimizer. Consider the query: SELECT a FROM a,b where a.id=b.id AND a.p > 10; We want the optimizer to know that a.id, b.id are "public" attributes, and a.p is a private attribute. Currently we have type information stored inform information_schema in postgres. Right now our prototype considers privacy as a RelTrait. We are stuck on what the best way to read this information is. Is there a similar example, or template on how to read in table metadata into calcite?
Madhav
