Lifei Chen created FLINK-11819:
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Summary: Additional attribute for order by not support by flink sql, but told supported in doc
Key: FLINK-11819
URL:
https://issues.apache.org/jira/browse/FLINK-11819 Project: Flink
Issue Type: Bug
Components: Documentation
Affects Versions: 1.7.2
Reporter: Lifei Chen
Assignee: Lifei Chen
Fix For: 1.7.3
I am using flink v1.7.1, when I use flink sql to order by an attribute (not time attribute), the error logs is as follow.
```
Exception in thread "main" org.apache.flink.table.api.TableException: Cannot generate a valid execution plan for the given query:
FlinkLogicalSort(sort0=[$2], dir0=[ASC])
FlinkLogicalNativeTableScan(table=[[_DataStreamTable_0]])
This exception indicates that the query uses an unsupported SQL feature.
Please check the documentation for the set of currently supported SQL features.
at org.apache.flink.table.api.TableEnvironment.runVolcanoPlanner(TableEnvironment.scala:377)
at org.apache.flink.table.api.TableEnvironment.optimizePhysicalPlan(TableEnvironment.scala:302)
at org.apache.flink.table.api.StreamTableEnvironment.optimize(StreamTableEnvironment.scala:814)
at org.apache.flink.table.api.StreamTableEnvironment.translate(StreamTableEnvironment.scala:860)
at org.apache.flink.table.api.java.StreamTableEnvironment.toRetractStream(StreamTableEnvironment.scala:305)
at org.apache.flink.table.api.java.StreamTableEnvironment.toRetractStream(StreamTableEnvironment.scala:248)
```
So as for no, only time attribute is supported by flink for command `order by`, additional attribute is not supported yet, Is that right ?
If so, there is a mistake, indicated that other attribute except for `time attribute` is supported .
related links:
https://ci.apache.org/projects/flink/flink-docs-release-1.7/dev/table/sql.html#orderby--limit--
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