desc: Regression tests for issue #309, using 'union' on an array and a stream doesn't seem to work
table_variable_name: t
tests:

    # Set up a stream

    - cd: t.insert([{'id':0}, {'id':1}])

    # Try to union to an array
    - cd: t.union([2,3,4])
      ot: bag([{'id':0}, {'id':1}, 2, 3, 4])

    - cd: r.expr([2,3,4]).union(t)
      ot: bag([{'id':0}, {'id':1}, 2, 3, 4])