[FLINK-6886] Fix Timestamp field can not be selected in event time case when toDataStream[T], `T` not a `Row` Type.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.0
• Fix Version/s: 1.3.1, 1.4.0
• Component/s: Table SQL / API
• Assignee: sunjincheng
• Reporter: sunjincheng
• Created: 11/Jun/17 08:21
• Updated: 19/Jun/17 22:21
• Resolved: 19/Jun/17 22:21

Description

Currently for event-time window(group/over), When contain `Timestamp` type field in `SELECT Clause`, And toDataStream[T], `T` not a `Row` Type, Such `PojoType`, will throw a exception. In this JIRA. will fix this bug. For example:
Group Window on SQL:

SELECT name, max(num) as myMax, TUMBLE_START(rowtime, INTERVAL '5' SECOND) as winStart,TUMBLE_END(rowtime, INTERVAL '5' SECOND) as winEnd FROM T1 GROUP BY name, TUMBLE(rowtime, INTERVAL '5' SECOND)

Throw Exception:

org.apache.flink.table.api.TableException: The field types of physical and logical row types do not match.This is a bug and should not happen. Please file an issue.

	at org.apache.flink.table.api.TableException$.apply(exceptions.scala:53)
	at org.apache.flink.table.api.TableEnvironment.generateRowConverterFunction(TableEnvironment.scala:721)
	at org.apache.flink.table.api.StreamTableEnvironment.getConversionMapper(StreamTableEnvironment.scala:247)
	at org.apache.flink.table.api.StreamTableEnvironment.translate(StreamTableEnvironment.scala:647)

In fact, when we solve this exception,subsequent other exceptions will be thrown. The real reason is TableEnvironment#generateRowConverterFunction method bug. So in this JIRA. will fix it.

Issue Links

• links to: GitHub Pull Request #4102