Is this a JDBC connector for Ethereum? If so, that's neat. Ethereum APIs are generally awful, so a known, sane language for interacting with the blockchain has to be welcome.
It’s a Presto (prestodb.io) plugin - presto is a tool to do SQL queries over data sources (hadoop, nosql dbs, sql dbs, etc), including joining over them
Presto itself has a JDBC driver, so you could run it + this plugin in a Java app/codebase
Presto itself has a JDBC driver, so you could run it + this plugin in a Java app/codebase