SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function caseWithExpression (children 1)
     ExpressionList (children 4)
      Literal UInt64_1
      Identifier c0
      Literal UInt64_1
      Literal NULL
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t0
