The findLastUpdated function is sending a query to sql-api even if the list of tables is empty. It's a low hanging fruit..
Probably uncommon, but I use those kind of queries a lot for testing.
See #145 for the longer-time fix.
Oops, previous commit closed #168, not #16
The change didn't really work, due to affectedTables returning a single-element rather than zero-element array for queries being affected by no tables.
This, in turn, is due to ''.split(',').length being 1,
well, matter for another ticket :)