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https://issues.apache.org/jira/browse/IMPALA-5604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16510450#comment-16510450
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Alex Rodoni commented on IMPALA-5604:
-------------------------------------

That will be great! Thank you [~tarmstrong]

 

> Document DISABLE_CODEGEN_ROWS_THRESHOLD
> ---------------------------------------
>
>                 Key: IMPALA-5604
>                 URL: https://issues.apache.org/jira/browse/IMPALA-5604
>             Project: IMPALA
>          Issue Type: Task
>          Components: Docs
>    Affects Versions: Impala 2.10.0
>            Reporter: Tim Armstrong
>            Assignee: Alex Rodoni
>            Priority: Major
>
> We just checking in DISABLE_CODEGEN_ROWS_THRESHOLD to master with default 
> value 50,000.
> The option uses the planner's estimates to determine whether to disable 
> codegen for a query based on the maximum number of rows flowing through any 
> part of the query plan. 
> It is similar to EXEC_SINGLE_NODE_ROWS_THRESHOLD in behaviour except the 
> threshold is per-node rows instead of total rows.



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