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https://issues.apache.org/jira/browse/CASSANDRA-9304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14968404#comment-14968404
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Stefania commented on CASSANDRA-9304:
-------------------------------------
I pushed one more commit to fix a [broken
dtest|http://cassci.datastax.com/view/Dev/view/stef1927/job/stef1927-9304-2.1-dtest/lastCompletedBuild/testReport/cqlsh_tests.cqlsh_tests/TestCqlsh/test_source_glass/].
It seems {{cStringIO}} does not support Unicode strings that cannot be encoded
as ascii. I've reintroduced {{StringIO.StringIO}}; performance does not seem to
be affected.
I've also changed string formatting and removed {{OrderedDict}} in order to
continue supporting python 2.6, see discussion on CASSANDRA-10415.
> COPY TO improvements
> --------------------
>
> Key: CASSANDRA-9304
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9304
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Stefania
> Priority: Minor
> Labels: cqlsh
> Fix For: 3.x, 2.1.x, 2.2.x
>
>
> COPY FROM has gotten a lot of love. COPY TO not so much. One obvious
> improvement could be to parallelize reading and writing (write one page of
> data while fetching the next).
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