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Date: Wed, 15 Jun 2016 15:06:09 +0000 (UTC)
From: "Fabian Hueske (JIRA)" <jira@apache.org>
To: dev@flink.apache.org
Message-ID: <JIRA.12979388.1466003134000.5631.1466003169433@Atlassian.JIRA>
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Subject: [jira] [Created] (FLINK-4077) Register Pojo DataSet/DataStream as
 Table requires alias expression.
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archived-at: Wed, 15 Jun 2016 15:06:11 -0000

Fabian Hueske created FLINK-4077:
------------------------------------

             Summary: Register Pojo DataSet/DataStream as Table requires alias expression.
                 Key: FLINK-4077
                 URL: https://issues.apache.org/jira/browse/FLINK-4077
             Project: Flink
          Issue Type: Bug
          Components: Table API
    Affects Versions: 1.1.0
            Reporter: Fabian Hueske
            Assignee: Fabian Hueske
             Fix For: 1.1.0


Registering a Pojo DataSet / DataStream as Table requires alias expressions and does not work with simple field references. However, alias expressions would only be necessary if the fields of the Pojo should be renamed. 

{code}
DataStream<Person> persons = ...

// DOES NOT WORK
tEnv.registerDataStream(
  "Persons", 
  persons, 
  "name, age, address");

// DOES WORK
tEnv.registerDataStream(
  "Persons", 
  persons, 
  "name AS name, age AS age, address AS address");
{code}

We should also allow simple field name references in addition to alias expressions to rename fields.



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