By the way I gave up on the latest MySQL 5.7.9 and went back to 5.6, due to other issues such as liquibase SQL statements that no longer work due to recent MySQL changes. I ran into more than 1 update that threw ‘Error 1093 - Can’t specify target table for update in FROM clause’. I fixed one, ran into another, and had no idea how many there might be. There are apparently server settings that can fix those issues, but I didn’t pursue that. Looks like something else that needs to be researched and documented.