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Posted to issues@drill.apache.org by "Pritesh Maker (JIRA)" <ji...@apache.org> on 2018/09/21 20:28:00 UTC

[jira] [Updated] (DRILL-6754) Add a field to SV2 to indicate if the SV2 reorders the Record Batch

     [ https://issues.apache.org/jira/browse/DRILL-6754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pritesh Maker updated DRILL-6754:
---------------------------------
    Description: 
The optimization in DRILL-6687 is not correct if an SV2 is used to re-order rows in the record batch. Currently, this is not a problem because none of the reordering operators (SORT, TOPN) use an SV2. SORT has code for SV2 but it is disabled.

Adding a field to SV2 to indicate if the SV2 reorders the Record Batch would allow the safe application of the DRILL-6687 optimization.

> Add a field to SV2 to indicate if the SV2 reorders the Record Batch
> -------------------------------------------------------------------
>
>                 Key: DRILL-6754
>                 URL: https://issues.apache.org/jira/browse/DRILL-6754
>             Project: Apache Drill
>          Issue Type: Improvement
>            Reporter: Karthikeyan Manivannan
>            Assignee: Karthikeyan Manivannan
>            Priority: Major
>
> The optimization in DRILL-6687 is not correct if an SV2 is used to re-order rows in the record batch. Currently, this is not a problem because none of the reordering operators (SORT, TOPN) use an SV2. SORT has code for SV2 but it is disabled.
> Adding a field to SV2 to indicate if the SV2 reorders the Record Batch would allow the safe application of the DRILL-6687 optimization.



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