julianhyde/sqlline — pull request #16 by joeposner (2013-07-31 00:25:34+00:00)
Title: force killing a statement relies on invoking code to check state

Lingual considers a statement as closed when concurrent has flow still running. Since sqlline handles errors with statement.cancel() sqlline should let the method be called and have the underlying code manage throw vs. no-op as long as the statement itself is not null.