binlijin created HIVE-4057:
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Summary: LazyHBaseRow may return cache data if the field is null
and make the result wrong
Key: HIVE-4057
URL: https://issues.apache.org/jira/browse/HIVE-4057
Project: Hive
Issue Type: Bug
Components: HBase Handler
Affects Versions: 0.11.0
Reporter: binlijin
LazyHBaseRow
{code}
private Object uncheckedGetField(int fieldID) {
if(!fieldsInited[fieldID]) {
fieldsInited[fieldID] = true;
byte [] res = result.getValue(colMap.familyNameBytes,
colMap.qualifierNameBytes);
if (res == null) {
return null;
}
}
return fields[fieldID].getObject();
}
{code}
if there is a LazyHBaseRow instance row, the fieldID is 0, we assume this
field is null, so the first time row.uncheckedGetField(0) will return null, but
the second time when row.uncheckedGetField(0) will return
fields[fieldID].getObject(), this is the last cache data.
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