wuchong commented on a change in pull request #11058:
[FLINK-15995][Table-planner-blink] Change TO_BASE64 sql operator defination
URL: https://github.com/apache/flink/pull/11058#discussion_r377618225
##########
File path:
flink-table/flink-table-planner-blink/src/main/java/org/apache/flink/table/planner/functions/sql/FlinkSqlOperatorTable.java
##########
@@ -574,9 +574,9 @@ public SqlMonotonicity getMonotonicity(SqlOperatorBinding
call) {
public static final SqlFunction TO_BASE64 = new SqlFunction(
"TO_BASE64",
SqlKind.OTHER_FUNCTION,
- VARCHAR_2000_NULLABLE,
+ ReturnTypes.cascade(ReturnTypes.explicit(SqlTypeName.VARCHAR),
SqlTypeTransforms.TO_NULLABLE),
null,
- OperandTypes.ANY,
+ OperandTypes.family(SqlTypeFamily.STRING),
Review comment:
You are right. I messed it with another fromBase64 PR.
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