Timo Walther created FLINK-32466:
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Summary: Invalid input strategy for CONCAT allows BINARY strings
Key: FLINK-32466
URL: https://issues.apache.org/jira/browse/FLINK-32466
Project: Flink
Issue Type: Bug
Components: Table SQL / Planner
Reporter: Timo Walther
Assignee: Timo Walther
"string" in SQL terms covers both character strings and binary strings. The
author of CONCAT might not have known this. In any case, the code gen instead
of the validator fails when executing:
{code}
TableEnvironment t =
TableEnvironment.create(EnvironmentSettings.inStreamingMode());
t.createTemporaryView("t", t.fromValues(lit(new byte[] {97})));
t.executeSql("SELECT CONCAT(f0, '-magic') FROM t").print();
{code}
As future work, we should also allow binary strings.
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