SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 5)
    Function toInt64 (alias operand) (children 1)
     ExpressionList (children 1)
      Identifier operand
    Function toInt32 (alias low) (children 1)
     ExpressionList (children 1)
      Identifier low
    Function toInt16 (alias high) (children 1)
     ExpressionList (children 1)
      Identifier high
    Identifier count
    Function WIDTH_BUCKET (children 1)
     ExpressionList (children 4)
      Identifier operand
      Identifier low
      Identifier high
      Identifier count
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier mytable
   Function notEquals (children 1)
    ExpressionList (children 2)
     Identifier count
     Literal UInt64_0
