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https://issues.apache.org/jira/browse/HIVE-17536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16168219#comment-16168219
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Vineet Garg commented on HIVE-17536:
------------------------------------

[~ashutoshc] if stat key is missing following code will throw 
NumberFormatException {code}Long.parseLong(params.get(statType)){code} since 
{code} params.get(statType){code} will return null on missing stat key. So this 
is already accounted for.

> StatsUtil::getBasicStatForTable doesn't distinguish b/w absence of statistics 
> or zero stats
> -------------------------------------------------------------------------------------------
>
>                 Key: HIVE-17536
>                 URL: https://issues.apache.org/jira/browse/HIVE-17536
>             Project: Hive
>          Issue Type: Improvement
>          Components: Statistics
>            Reporter: Vineet Garg
>            Assignee: Vineet Garg
>         Attachments: HIVE-17536.1.patch
>
>
> This method returns zero for both of the following cases:
> * Statistics are missing in metastore
> * Actual stats e.g. number of rows are zero
> It'll be good for this method to return e.g. -1 in absence of statistics 
> instead of assuming it to be zero.



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