diff --git a/docs/cql/types.rst b/docs/cql/types.rst index 7d00910be2..5ca654d7aa 100644 --- a/docs/cql/types.rst +++ b/docs/cql/types.rst @@ -287,6 +287,8 @@ Non-frozen collections have the following noteworthy characteristics and limitat Further, some list operations are not idempotent by nature (see the section on :ref:`lists ` below for details), making their retry in case of timeout problematic. It is thus advised to prefer sets over lists when possible. +- Non-frozen collections impose a significant performance penalty. To ensure better performance, use frozen collections + or frozen UDTs. See `this blog post `_ for more information about improving performance. Please note that while some of those limitations may or may not be removed/improved upon in the future, it is an anti-pattern to use a (single) collection to store large amounts of data.