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https://issues.apache.org/jira/browse/FLINK-13389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-13389:
-----------------------------------
Labels: auto-deprioritized-major stale-minor (was:
auto-deprioritized-major)
I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help
the community manage its development. I see this issues has been marked as
Minor but is unassigned and neither itself nor its Sub-Tasks have been updated
for 180 days. I have gone ahead and marked it "stale-minor". If this ticket is
still Minor, please either assign yourself or give an update. Afterwards,
please remove the label or in 7 days the issue will be deprioritized.
> Setting DataStream return type breaks some type conversion between Table and
> DataStream
> ---------------------------------------------------------------------------------------
>
> Key: FLINK-13389
> URL: https://issues.apache.org/jira/browse/FLINK-13389
> Project: Flink
> Issue Type: Bug
> Components: API / DataStream, Table SQL / API
> Reporter: Rong Rong
> Priority: Minor
> Labels: auto-deprioritized-major, stale-minor
>
> When converting between data stream and table, there are situations where
> only GenericTypeInfo can be successfully applied, but not directly setting
> the specific RowTypeInfo.
> For example the following code doesn't work
> {code:java}
> TypeInformation<?>[] types = {
> BasicTypeInfo.INT_TYPE_INFO,
> TimeIndicatorTypeInfo.ROWTIME_INDICATOR(),
> BasicTypeInfo.STRING_TYPE_INFO};
> String[] names = {"a", "b", "c"};
> RowTypeInfo typeInfo = new RowTypeInfo(types, names);
> DataStream<Row> ds = env.fromCollection(data).returns(typeInfo);
> Table sourceTable = tableEnv.fromDataStream(ds, "a,b,c");
> tableEnv.registerTable("MyTableRow", sourceTable);
> DataStream<Row> stream = tableEnv.toAppendStream(sourceTable,
> Row.class)
> .map(a -> a)
> // this line breaks the conversion, it sets the
> typeinfo to RowTypeInfo.
> // without this line the output type is
> GenericTypeInfo(Row)
> .returns(sourceTable.getSchema().toRowType());
> stream.addSink(new StreamITCase.StringSink<Row>());
> env.execute();
> {code}
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