xccui commented on issue #6736: [FLINK-10398][table] Add Tanh math function supported in Table API and SQL URL: https://github.com/apache/flink/pull/6736#issuecomment-431031320 Hi @pnowojski, I suppose that is because SQL is not case-sensitive. Usually, we use uppercase for SQL function names and thus lowercase for parameter names which are distinctive. While Java and Scala are case-sensitive and the function names use camel casing. Thus we use uppercase for their parameters. The descriptions should be consistent with the function definitions.
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