Github user wuchong commented on a diff in the pull request:
https://github.com/apache/flink/pull/4532#discussion_r132841043
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/StreamTableEnvironment.scala
---
@@ -667,30 +719,62 @@ abstract class StreamTableEnvironment(
// get CRow plan
val plan: DataStream[CRow] = translateToCRow(logicalPlan, queryConfig)
+ val rowtimeFields = logicalType
+ .getFieldList.asScala
+ .filter(f => FlinkTypeFactory.isRowtimeIndicatorType(f.getType))
+
+ // convert the input type for the conversion mapper
+ // the input will be changed in the OutputRowtimeProcessFunction later
+ val convType = if (rowtimeFields.size > 1) {
+ throw new TableException(
--- End diff --
I'm fine with both current approach and use time indicator of left table as
default. But I think no exception should be thrown when writing a Table to a
TableSink. But currently, they share the same exception code path.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
