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Posted to dev@flink.apache.org by "Gyula Fora (Jira)" <ji...@apache.org> on 2020/04/27 15:34:00 UTC

[jira] [Created] (FLINK-17420) Cannot alias Tuple and Row fields when converting DataStream to Table

Gyula Fora created FLINK-17420:
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             Summary: Cannot alias Tuple and Row fields when converting DataStream to Table
                 Key: FLINK-17420
                 URL: https://issues.apache.org/jira/browse/FLINK-17420
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / API
    Affects Versions: 1.10.0
            Reporter: Gyula Fora


It is impossible to alias Tuple and Row fields when converting DataStream to Table.


{code:java}
tableEnv.fromDataStream(env.fromElements(Tuple2.of("a", 1)), "f0 as name, f1 as age");
{code}
This leads to the following error:

Alias 'name' is not allowed if other fields are referenced by position

org.apache.flink.table.typeutils.FieldInfoUtils#isReferenceByPosition method

More info: [https://lists.apache.org/thread.html/re35f37797692af4e9e0e2512dedf0f598e0cdbe1ac4820103d4273c1%40%3Cuser.flink.apache.org%3E]



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