Peter Rozsa created IMPALA-12589:
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Summary: 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 4.3.0, Impala 4.2.0
Reporter: Peter Rozsa
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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