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https://issues.apache.org/jira/browse/IMPALA-4297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16840845#comment-16840845
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Tim Armstrong commented on IMPALA-4297:
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IMPALA-4356 helped a lot here. We could still unroll the loop over all the
columns, e.g. in HdfsParquetTableWriter::AppendRows().
> Codegen AppendRows() for HdfsTableSink
> --------------------------------------
>
> Key: IMPALA-4297
> URL: https://issues.apache.org/jira/browse/IMPALA-4297
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Affects Versions: Impala 2.6.0
> Reporter: Greg Rahn
> Priority: Major
> Labels: codegen
>
> Currently codegen is not done for HdfsTableSink, this improvement would
> enable that to make writing faster.
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