anishek created HIVE-18192:
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Summary: Introduce WriteId per table rather than using global
transaction id
Key: HIVE-18192
URL: https://issues.apache.org/jira/browse/HIVE-18192
Project: Hive
Issue Type: Bug
Components: HiveServer2, Transactions
Affects Versions: 3.0.0
Reporter: anishek
Assignee: anishek
Fix For: 3.0.0
To support ACID replication, we will be introducing a per table write Id which
will replace the transaction id in the primary key for each row in a ACID
table.
The current primary key is determined via
<original transaction id, bucketid , rowid>
which will move to
<write id, bucketid, rowid>
a persistable map of global txn id -> to table -> write id for that table has
to be maintained to now allow Snapshot isolation.
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