Krisztian Kasa created HIVE-28050:
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Summary: Disable Incremental non aggregated materialized view
rebuild in presence of delete operations
Key: HIVE-28050
URL: https://issues.apache.org/jira/browse/HIVE-28050
Project: Hive
Issue Type: Bug
Components: Materialized views
Reporter: Krisztian Kasa
Assignee: Krisztian Kasa
Fix For: 4.1.0
To support incremental rebuild of materialized views which definition does not
have aggregate in presence of delete operations in any of its source tables the
records of the source tables need to be uniquely identified and joined with the
records present in the view.
One possibility is to project ROW_IDs of each source table in the view
definition but the writeId component is changing at delete.
Another way is to project columns of primary keys or unique keys but these
constraints are not enforced in Hive.
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