CreateQuery dict_big (children 3)
 Identifier dict_big
 ExpressionList (children 3)
  DictionaryAttributeDeclaration id (children 1)
   DataType UInt64
  DictionaryAttributeDeclaration grp (children 1)
   DataType String
  DictionaryAttributeDeclaration grp_round (children 1)
   DataType String
 Dictionary definition (children 4)
  ExpressionList (children 1)
   Identifier id
  FunctionWithKeyValueArguments  clickhouse (children 1)
   ExpressionList (children 1)
    pair (children 1)
     Literal \'dict_src_big\'
  Dictionary lifetime
  Dictionary layout (children 1)
   ExpressionList
