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https://issues.apache.org/jira/browse/CASSANDRA-14845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas updated CASSANDRA-14845:
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Component/s: Local Write-Read Paths
> SSTable Columns accumulate forever
> ----------------------------------
>
> Key: CASSANDRA-14845
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14845
> Project: Cassandra
> Issue Type: Bug
> Components: Local Write-Read Paths
> Reporter: Benedict
> Priority: Minor
>
> When merging multiple sstables together, we assume the union of all columns
> will be present in the output. This will slowly pollute storage efficiency
> after each dropped column from the schema, as it becomes impossible for rows
> to store the whole set of columns (and may necessitate larger bit sets over
> time)
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