ZhaoYang created CASSANDRA-16044:
------------------------------------
Summary: Query SSTable Indexes in token sorted runs for LCS and
TWCS
Key: CASSANDRA-16044
URL: https://issues.apache.org/jira/browse/CASSANDRA-16044
Project: Cassandra
Issue Type: Improvement
Components: Feature/SASI
Reporter: ZhaoYang
Currently SASI searches all SSTable indexes that may include the query
partition key and indexed term, but this will cause large IO overhead with
range index query (ie. age > 18) when sstable count is huge.
Proposed improvement: query sstable indexes in token-sorted-runs lazily. When
the data in the first few token ranges is sufficient for limit, SASI can reduce
the overhead of searching sstable indexes for the remaining ranges.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
