xiedeyantu commented on code in PR #4822:
URL: https://github.com/apache/calcite/pull/4822#discussion_r2890209189
##########
core/src/main/java/org/apache/calcite/util/RelToSqlConverterUtil.java:
##########
@@ -390,6 +390,24 @@ public static SqlDataTypeSpec
getCastSpecAngleBracketArrayType(SqlDialect dialec
return new SqlDataTypeSpec(sqlArrayTypeNameSpec, SqlParserPos.ZERO);
}
+ /**
+ * Used to ensure that Map types can be correctly converted.
Review Comment:
You can modify the javadoc to look like the example above.
```
/**
* Transformation ARRAY type from {@code VARCHAR ARRAY} to {@code
Array<VARCHAR>}.
*/
```
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