Eugene Koifman created HIVE-20580:
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Summary: OrcInputFormat.isOriginal() should not rely on
hive.acid.key.index
Key: HIVE-20580
URL: https://issues.apache.org/jira/browse/HIVE-20580
Project: Hive
Issue Type: Improvement
Components: Transactions
Affects Versions: 3.1.0
Reporter: Eugene Koifman
{{org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.isOriginal()}} is checking
for presence of {{hive.acid.key.index}} in the footer. This is only created
when the file is written by {{OrcRecordUpdater}}. It should instead check for
presence of Acid metadata columns so that a file can be produced by something
other than {{OrcRecordUpater}}.
Also, {{hive.acid.key.index}} counts number of different type of events which
is not really useful for Acid V2 (as of Hive 3) since each file only has 1 type
of event.
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