Xingcan Cui created FLINK-8094:
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Summary: Support other types for ExistingField rowtime extractor
Key: FLINK-8094
URL: https://issues.apache.org/jira/browse/FLINK-8094
Project: Flink
Issue Type: Improvement
Components: Table API & SQL
Affects Versions: 1.4.0, 1.5.0
Reporter: Xingcan Cui
Currently, the {{ExistingField}} rowtime extractor only supports {{Long}} and
{{Timestamp}} fields. To enable other data types (e.g., {{String}}), we can
provide some system extraction functions and allow users to pass some
parameters via the constructor of {{ExistingField}}. There's [a simple
demo|https://github.com/xccui/flink/commit/afcc5f1a0ad92db08294199e61be5df72c1514f8]
which enables the {{String}} type rowtime by adding a UDF {{str2EventTime}}.
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