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https://issues.apache.org/jira/browse/CASSANDRA-2583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13030634#comment-13030634
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Jonathan Ellis commented on CASSANDRA-2583:
-------------------------------------------
hmm, still seeing failures
{noformat}
form:svn-trunk jonathan$ patch -p1 < CASSANDRA-2583-v2.patch
patching file src/java/org/apache/cassandra/cql/AbstractModification.java
Hunk #2 succeeded at 86 (offset -7 lines).
Hunk #3 succeeded at 100 (offset -7 lines).
patching file src/java/org/apache/cassandra/cql/BatchStatement.java
Hunk #2 succeeded at 78 (offset -9 lines).
Hunk #3 succeeded at 121 (offset -9 lines).
patching file src/java/org/apache/cassandra/cql/DeleteStatement.java
patching file src/java/org/apache/cassandra/cql/UpdateStatement.java
Hunk #2 FAILED at 156.
1 out of 2 hunks FAILED -- saving rejects to file
src/java/org/apache/cassandra/cql/UpdateStatement.java.rej
{noformat}
maybe git mirror doesn't have r1100900 yet?
> optimize batches containing multiple updates to the same rows
> -------------------------------------------------------------
>
> Key: CASSANDRA-2583
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2583
> Project: Cassandra
> Issue Type: Improvement
> Components: API
> Affects Versions: 0.8 beta 1
> Reporter: Jonathan Ellis
> Assignee: Pavel Yaskevich
> Priority: Minor
> Fix For: 0.8.1
>
> Attachments: CASSANDRA-2583-v2.patch, CASSANDRA-2583.patch
>
>
> Currently we turn batches into one RowMutation per statement. This is
> suboptimal if we have multiple statements operating on the same row. This
> could happen either with generated code, or deliberately to allow different
> options to different columns in the row, e.g. for TTLs (CASSANDRA-2476).
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