Github user wuchong commented on a diff in the pull request:
https://github.com/apache/flink/pull/4532#discussion_r132863952
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/ProctimeSqlFunction.scala
---
@@ -22,12 +22,12 @@ import org.apache.calcite.sql.`type`._
import org.apache.calcite.sql.validate.SqlMonotonicity
/**
- * Function that materializes a time attribute to the metadata timestamp.
After materialization
- * the result can be used in regular arithmetical calculations.
+ * Function that materializes a processing time attribute.
+ * After materialization the result can be used in regular arithmetical
calculations.
*/
-object TimeMaterializationSqlFunction
+object ProctimeSqlFunction
--- End diff --
Should we move this object to `org.apache.flink.table.functions.sql`
package?
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