Timo Walther created FLINK-15149:
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Summary: Merge InputTypeStrategy and InputTypeValidator
Key: FLINK-15149
URL: https://issues.apache.org/jira/browse/FLINK-15149
Project: Flink
Issue Type: Sub-task
Components: Table SQL / API
Reporter: Timo Walther
Assignee: Timo Walther
Due to the design of Calcite, even operand checkers that were originally used
for "checking" can infer and modify call arguments nowadays. This conflicts
with our original design of separating validation and input type inference.
Therefore, we propose to merge those two concepts in Flink into one
`InputTypeStrategy` that is responsible for both inferring/enriching and
validation.
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