Sankar Hariappan created HIVE-18750:
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Summary: Exchange partition should not be supported with per table
write ID.
Key: HIVE-18750
URL: https://issues.apache.org/jira/browse/HIVE-18750
Project: Hive
Issue Type: Sub-task
Components: HiveServer2, Transactions
Affects Versions: 3.0.0
Reporter: Sankar Hariappan
Assignee: Sankar Hariappan
Fix For: 3.0.0
Per table write id implementation (HIVE-18192) have introduced write ID per
table and used write ID to name the delta/base files and also as primary key
for each row.
Now, exchange partition have to move delta/base files across tables without
changing the write ID which causes incorrect results.
Also, this exchange partition feature is there to support the use-case of
atomic updates. But with ACID updates, we shall support atomic-updates and
hence it makes sense to not support exchange partition for ACID and MM tables.
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