CreateQuery morton_numbers_mask_02457 (children 3)
 Identifier morton_numbers_mask_02457
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration n1 (children 1)
    DataType UInt32
   ColumnDeclaration n2 (children 1)
    DataType UInt8
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Identifier n1
  Set
