SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function intDiv (children 1)
     ExpressionList (children 2)
      Identifier b
      Identifier c
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_filter
   Function notEquals (children 1)
    ExpressionList (children 2)
     Identifier c
     Literal UInt64_0
