Github user wuchong commented on a diff in the pull request:
https://github.com/apache/flink/pull/4128#discussion_r127868400
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/sql/ScalarSqlFunctions.scala
---
@@ -33,6 +33,14 @@ object ScalarSqlFunctions {
OperandTypes.NILADIC,
SqlFunctionCategory.NUMERIC)
+ val BIN = new SqlFunction(
+ "BIN",
+ SqlKind.OTHER_FUNCTION,
+ ReturnTypes.explicit(SqlTypeName.VARCHAR),
+ null,
+ OperandTypes.NUMERIC,
--- End diff --
I don't think BIN accepts all NUMERIC operands. I think it only accepts
BIGINT, TINYINT, SMALLINT,INTEGER. And not support other decimal numeric.
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