CreateQuery direct_dictionary (children 3)
 Identifier direct_dictionary
 ExpressionList (children 2)
  DictionaryAttributeDeclaration id (children 1)
   DataType UInt64
  DictionaryAttributeDeclaration value (children 2)
   DataType Nullable (children 1)
    ExpressionList (children 1)
     DataType Int64
   Literal NULL
 Dictionary definition (children 3)
  ExpressionList (children 1)
   Identifier id
  FunctionWithKeyValueArguments  clickhouse (children 1)
   ExpressionList (children 3)
    pair (children 1)
     Literal \'localhost\'
    pair (children 1)
     Function tcpPort (children 1)
      ExpressionList
    pair (children 1)
     Literal \'dictionary_nullable_source_table\'
  Dictionary layout (children 1)
   ExpressionList
