CreateQuery t_leading_zeroes (children 3)
 Identifier t_leading_zeroes
 Columns definition (children 1)
  ExpressionList (children 5)
   ColumnDeclaration id (children 1)
    DataType Int64
   ColumnDeclaration input (children 1)
    DataType String
   ColumnDeclaration val (children 1)
    DataType Int64
   ColumnDeclaration expected (children 1)
    DataType Int64
   ColumnDeclaration comment (children 1)
    DataType String
 Storage definition (children 2)
  Function MergeTree
  Identifier id
