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https://issues.apache.org/jira/browse/CASSANDRA-1415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12902921#action_12902921
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Gary Dusbabek edited comment on CASSANDRA-1415 at 8/26/10 12:40 PM:
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01: it looks like the old version built the index by reading straight from the
data file. The new way expects the CFS to be populated with sstables, which
isn't always going to be the case (if you're recovering from a descriptor that
points to a db that the CFS isn't going to load automatically).
EDIT: forgot to mention that SSTableWriterTest illustrates this.
was (Author: gdusbabek):
01: it looks like the old version built the index by reading straight from
the data file. The new way expects the CFS to be populated with sstables,
which isn't always going to be the case (if you're recovering from a descriptor
that points to a db that the CFS isn't going to load automatically).
> Allow creating indexes on existing data
> ---------------------------------------
>
> Key: CASSANDRA-1415
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1415
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Affects Versions: 0.7 beta 1
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Fix For: 0.7 beta 2
>
> Attachments: 0001-Table.rebuildIndex.txt,
> 0002-extract-addIndex-method.txt,
> 0003-allow-addIndex-to-create-indexes-that-did-not-previous.txt
>
>
> (This ticket is only for the index-CF creation part, not for the thrift API
> changes, which may come for free from CASSANDRA-1285)
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