CreateQuery hierarchy_hashed_array_dictionary_index (children 3)
 Identifier hierarchy_hashed_array_dictionary_index
 ExpressionList (children 2)
  DictionaryAttributeDeclaration id (children 1)
   DataType UInt64
  DictionaryAttributeDeclaration parent_id (children 1)
   DataType UInt64
 Dictionary definition (children 4)
  ExpressionList (children 1)
   Identifier id
  FunctionWithKeyValueArguments  clickhouse (children 1)
   ExpressionList (children 1)
    pair (children 1)
     Literal \'test_hierarchy_source_table\'
  Dictionary lifetime
  Dictionary layout (children 1)
   ExpressionList