I'm looking at Mongo and Cassandra calcite adapters taking them as a reference for my own adapter.
It seems like they do not support several things I found so far: 1) nested AND(OR(AND)) statements 2) prepared statements These two look for me very important, so the question - what is a status of these sub-projects? Are they just for reference/example? How can improve these adapters to support prepared statements? Where should I get bound parameters from? Should I access them in MongoTable.find() method from this.queryProvider.statementMap? Looks like that map holds all concurrent statements for the connection. How can I know the key for that map to get the proper statements? Or should I somehow modify the MongoToEnumerableConverter.implement() so that the arguments of generated method contain bound variables? How to do that? -- Oleksiy
