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doc: fixes https://github.com/scylladb/scylla-docs/issues/3706, v2 of https://github.com/scylladb/scylladb/pull/11638, add a note about performance penalty in non-frozen connections vs frozen connections and UDT, add a link to the blog post about performance

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Closes #12583
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Anna Stuchlik
2023-01-20 12:54:55 +01:00
committed by Botond Dénes
parent 232c73a077
commit 3cbe657b24
1 changed files with 2 additions and 0 deletions
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docs/cql/types.rst
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@@ -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 <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 <https://www.scylladb.com/2017/12/07/performance-udt/>`_ 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.