Kadir OZDEMIR created PHOENIX-5025:
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Summary: Tool to clean up orphan views
Key: PHOENIX-5025
URL: https://issues.apache.org/jira/browse/PHOENIX-5025
Project: Phoenix
Issue Type: New Feature
Reporter: Kadir OZDEMIR
Assignee: Kadir OZDEMIR
A view without its base table is an orphan view. Since views are virtual tables
and their data is stored in their base tables, they are useless when they
become orphan. A base table can have child views, grandchild views and so on.
Due to some reasons/bugs, when a base table was dropped, its views were not not
properly cleaned up in the past. For example, the drop table code did not
support cleaning up grandchild views. This has been recently fixed by
PHOENIX-4764. Although PHOENIX-4764 prevents new orphan views due to table drop
operations, it does not clean up existing orphan views. It is also believed
that when the system catalog table was split due to a bug in the past, it also
contributed to creating orphan views as Phoenix did not support splittable
system catalog. Therefore, Phoenix needs a tool to clean up orphan views.
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