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Posted to commits@cassandra.apache.org by "Jordan West (JIRA)" <ji...@apache.org> on 2019/08/05 16:40:00 UTC
[jira] [Created] (CASSANDRA-15259) Selecting Index by Lowest Mean
Column Count Selects Random Index
Jordan West created CASSANDRA-15259:
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Summary: Selecting Index by Lowest Mean Column Count Selects Random Index
Key: CASSANDRA-15259
URL: https://issues.apache.org/jira/browse/CASSANDRA-15259
Project: Cassandra
Issue Type: Bug
Components: Feature/2i Index
Reporter: Jordan West
Assignee: Jordan West
{{CassandraIndex}} uses {{[ColumnFamilyStore#getMeanColumns|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/index/internal/CassandraIndex.java#L273], average columns per partition, which always returns the same answer for index CFs because they contain no regular columns and clustering columns aren't included in the count in Cassandra 3.0+.}}
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