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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2020/02/11 12:08:14 UTC
[GitHub] [flink] wuchong commented on a change in pull request #11058:
[FLINK-15995][Table-planner-blink] Change TO_BASE64 sql operator defination
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_r377595239
##########
File path: flink-table/flink-table-planner-blink/src/main/java/org/apache/flink/table/planner/functions/sql/FlinkSqlOperatorTable.java
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@@ -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 can add tests to `org.apache.flink.table.expressions.ScalarFunctionsTest#testToBase64`。
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