CreateQuery t_length_1 (children 3)
 Identifier t_length_1
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration arr (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType UInt64
 Storage definition (children 2)
  Function ReplacingMergeTree
  Identifier id
