Arvid Heise created FLINK-41436:
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Summary: Planning time grows exponentially with the depth of
nested catalog views because CatalogManager re-parses unresolved views on every
lookup
Key: FLINK-41436
URL: https://issues.apache.org/jira/browse/FLINK-41436
Project: Flink
Issue Type: Improvement
Components: Table SQL / Planner
Affects Versions: 2.3.0
Reporter: Arvid Heise
Assignee: Arvid Heise
since FLINK-37098 (https://issues.apache.org/jira/browse/FLINK-37098) "Can not
select time attribute from a view", resolveCatalogView parses and converts the
view body on every lookup. Calcite looks up each identifier more than once, and
each nested view is resolved the same way, so cost compounds per level.
Catalogs that store ResolvedCatalogView are not affected; every catalog that
rebuilds views from stored text is.
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