[jira] [Commented] (FLINK-3486) Use Project to rename all record fields would fail following Project.

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-3486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15176766#comment-15176766 ] 

ASF GitHub Bot commented on FLINK-3486:
---------------------------------------

Github user fhueske commented on the pull request:

    https://github.com/apache/flink/pull/1738#issuecomment-191502994
  
    Will merge this to `tableOnCalcite` branch.


> Use Project to rename all record fields would fail following Project.
> ---------------------------------------------------------------------
>
>                 Key: FLINK-3486
>                 URL: https://issues.apache.org/jira/browse/FLINK-3486
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API
>            Reporter: Chengxiang Li
>            Assignee: Fabian Hueske
>
> {noformat} val t = CollectionDataSets.get3TupleDataSet(env).toTable
>       .select('_1 as 'a, '_2 as 'b, '_3 as 'c)
>       .select('a, 'b)
> {noformat}
> would throw exception like:
> {noformat}
> java.lang.IllegalArgumentException: field [a] not found; input fields are: [_1, _2, _3]
> 	at org.apache.calcite.tools.RelBuilder.field(RelBuilder.java:290)
> 	at org.apache.calcite.tools.RelBuilder.field(RelBuilder.java:275)
> 	at org.apache.flink.api.table.plan.RexNodeTranslator$.toRexNode(RexNodeTranslator.scala:80)
> 	at org.apache.flink.api.table.Table$$anonfun$5.apply(table.scala:98)
> 	at org.apache.flink.api.table.Table$$anonfun$5.apply(table.scala:98) {noformat}
> new alias names are lost.



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