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https://issues.apache.org/jira/browse/HIVE-14454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V updated HIVE-14454:
---------------------------
Assignee: Gopal V
Status: Patch Available (was: Open)
> Vectorization: Varchar() -> String should not copy underlying buffers
> ---------------------------------------------------------------------
>
> Key: HIVE-14454
> URL: https://issues.apache.org/jira/browse/HIVE-14454
> Project: Hive
> Issue Type: Improvement
> Components: Vectorization
> Affects Versions: 2.2.0
> Reporter: Gopal V
> Assignee: Gopal V
> Attachments: HIVE-14454.1.patch
>
>
> The base byte[] array for a ByteColumnVector is immutable - all changes are
> made to a scratch column.
> {code}
> @Override
> protected void func(BytesColumnVector outV, byte[][] vector, int[] start,
> int[] length, int i) {
> outV.setVal(i, vector[i], start[i], length[i]);
> }
> {code}
> the setVal copies the byte[] array, losing dictionary encoding in the process.
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