[
https://issues.apache.org/jira/browse/HIVE-14452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-14452:
---------------------------
Description:
Since the VectorDeserializeRow already calls a setVal(), the copy inside the
lower layer is entirely wasteful.
{code}
BinarySortableSerDe.deserializeText(
inputByteBuffer, columnSortOrderIsDesc[fieldIndex], tempText);
{code}
With HIVE-14451, the copies can be avoided for some scenarios and retained for
others.
was:
Since the VectorDeserializeRow already calls a setVal(), the copy inside the
lower layer is entirely wasteful.
With HIVE-14451, the copies can be avoided for some scenarios and retained for
others.
> Vectorization: BinarySortableDeserializeRead should delegate buffer copies to
> VectorDeserializeRow
> --------------------------------------------------------------------------------------------------
>
> Key: HIVE-14452
> URL: https://issues.apache.org/jira/browse/HIVE-14452
> Project: Hive
> Issue Type: Improvement
> Components: Vectorization
> Reporter: Gopal V
>
> Since the VectorDeserializeRow already calls a setVal(), the copy inside the
> lower layer is entirely wasteful.
> {code}
> BinarySortableSerDe.deserializeText(
> inputByteBuffer, columnSortOrderIsDesc[fieldIndex], tempText);
> {code}
> With HIVE-14451, the copies can be avoided for some scenarios and retained
> for others.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
