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https://issues.apache.org/jira/browse/CASSANDRA-18102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17702333#comment-17702333
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Stefan Miklosovic commented on CASSANDRA-18102:
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I was discussing with Andres that we might add CQL functions taking longs and
returning whatever size unit one wants. Like sizeof('true_size', 'MiB') would
return it in MiB. So, I think that having just a simple long as a base to start
with is fine. However, it might be quite confusing to parse that number
"visually" to see what the size is, we have human-friendly output in nodetool
already afaik but fo this future flexibility in size representation is might be
worth it (plus doing selects on it as in the above example).
> Add a virtual table to list snapshots
> -------------------------------------
>
> Key: CASSANDRA-18102
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18102
> Project: Cassandra
> Issue Type: Improvement
> Components: Feature/Virtual Tables, Local/Snapshots
> Reporter: Paulo Motta
> Assignee: maxwellguo
> Priority: Normal
> Fix For: 5.0
>
> Time Spent: 8h 40m
> Remaining Estimate: 0h
>
> It should be possible to query a node's snapshots via virtual tables.
> The table should expose the same fields/columns as the
> [TableSnapshot|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/service/snapshot/TableSnapshot.java]
> class.
> Something along these lines:
> {noformat}
> cqlsh> SELECT * FROM system_views.snapshots;
>
> tag | keyspace_name | table_name | table_id | is_ephemeral | created_at |
> expires_at | directories
> ----+---------------+------------+-----------+--------------+-----------+------------+------------
> 1670460346841 | system | compaction_info |
> 123e4567-e89b-12d3-a456-426614174000 | false | 2022-12-08T00:45:47.108Z |
> null |
> {'/var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/snapshots/1670460346841'}
> {noformat}
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