Yueyang Qiu created BEAM-9536:
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Summary: Return type of window start/end functions is incorrectly
inferred to be INT64
Key: BEAM-9536
URL: https://issues.apache.org/jira/browse/BEAM-9536
Project: Beam
Issue Type: Improvement
Components: dsl-sql-zetasql
Reporter: Yueyang Qiu
Assignee: Yueyang Qiu
Our current implementation does not have the correct return type information of
the window start/end functions (e.g. TUMBLE_START).
LOC that cause the problem:
[https://github.com/apache/beam/blob/646f596988be9d6a739090f48d2fed07c8dfc17c/sdks/java/extensions/sql/zetasql/src/main/java/org/apache/beam/sdk/extensions/sql/zetasql/SqlAnalyzer.java#L62]
We should specify the return type explicitly here in the CREATE statements.
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