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https://issues.apache.org/jira/browse/IMPALA-12589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Riza Suminto resolved IMPALA-12589.
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Target Version: Impala 4.4.0
Resolution: Fixed
> NPE on querying external tables pointing to a single file
> ---------------------------------------------------------
>
> Key: IMPALA-12589
> URL: https://issues.apache.org/jira/browse/IMPALA-12589
> Project: IMPALA
> Issue Type: Bug
> Components: fe
> Affects Versions: Impala 4.2.0, Impala 4.3.0
> Reporter: Peter Rozsa
> Assignee: Riza Suminto
> Priority: Major
>
> IMPALA-11507 brought in changes for relative/absolute paths, and made it
> impossible to query external tables pointing to a single file.
> HdfsPartition.getPath() returns null instead of empty path during
> computeEstimatedTableSize().
> Example:
> {code:java}
> create external table t1(c1 int) stored as textfile;
> insert into t1 values (1);
> show files in t1;
> <copy the file to a tmp location>
> <rm the LOCATION directory of t1>
> <cp/mv the copied file to the LOCATION path>
> invalidate metadata t1;
> select count(*) from t1; {code}
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