[jira] [Commented] (HIVE-4965) Add support so that PTFs can stream their output; Windowing PTF should do this

["Edward Capriolo (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-4965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13802544#comment-13802544 ] 

Edward Capriolo commented on HIVE-4965:
---------------------------------------


HIVE-4965.D12615.1.patch . There are several lint errors in this patch
+    while(pItr.hasNext())
+    {

int i=0;

i=0;
+    for(i=0; i < iPart.getOutputOI().getAllStructFieldRefs().size(); i++) {

int i =0;

> Add support so that PTFs can stream their output; Windowing PTF should do this
> ------------------------------------------------------------------------------
>
>                 Key: HIVE-4965
>                 URL: https://issues.apache.org/jira/browse/HIVE-4965
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Harish Butani
>            Assignee: Harish Butani
>         Attachments: HIVE-4965.D12033.1.patch, HIVE-4965.D12615.1.patch
>
>
> There is no need to create an output PTF Partition for the last PTF in a chain. For the Windowing PTF this should give a perf. boost; we avoid creating temporary results for each UDAF; avoid populating an output Partition.



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