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https://issues.apache.org/jira/browse/CASSANDRA-19945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17885325#comment-17885325
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Branimir Lambov commented on CASSANDRA-19945:
---------------------------------------------
{{ByteSourceComparisonTest}} checks this for selected examples (see
[{{maybeAssertNotPrefix}}|https://github.com/apache/cassandra/blob/trunk/test/unit/org/apache/cassandra/utils/bytecomparable/ByteSourceComparisonTest.java#L865]
as well as {{maybeCheck41Properties}} (renamed to 50 now)). This is actually
one of those things that you can't really check by tests;
[{{ByteComparable.md}}|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/utils/bytecomparable/ByteComparable.md]
has sections that explain and prove the properties for every one of the types
in use.
> Reverse cursor and iteration support for Trie based memtables
> -------------------------------------------------------------
>
> Key: CASSANDRA-19945
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19945
> Project: Cassandra
> Issue Type: Improvement
> Components: Local/Memtable, Local/SSTable
> Reporter: Ariel Weisberg
> Assignee: Branimir Lambov
> Priority: Normal
> Fix For: 5.x
>
>
> Cherry- pick
> [https://github.com/datastax/cassandra/commit/196b931c677829d681406f14cf1da814ff5a6624]
> For Accord in particular this is useful to avoid flushing memtables that
> don't intersect with the range that is going to start having metadata GCed so
> we can flush less frequently/later.
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