Timo Walther created FLINK-3579:
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Summary: Improve String concatenation
Key: FLINK-3579
URL: https://issues.apache.org/jira/browse/FLINK-3579
Project: Flink
Issue Type: Bug
Components: Table API
Reporter: Timo Walther
Priority: Minor
Concatenation of a String and non-String does not work properly.
e.g. {{f0 + 42}} leads to RelBuilder Exception
ExpressionParser does not like {{f0 + 42.cast(STRING)}} either.
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