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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2015/06/03 09:48:49 UTC
[jira] [Resolved] (SPARK-7562) Improve error reporting for
expression data type mismatch
[ https://issues.apache.org/jira/browse/SPARK-7562?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Reynold Xin resolved SPARK-7562.
--------------------------------
Resolution: Fixed
Fix Version/s: 1.5.0
Assignee: Wenchen Fan
> Improve error reporting for expression data type mismatch
> ---------------------------------------------------------
>
> Key: SPARK-7562
> URL: https://issues.apache.org/jira/browse/SPARK-7562
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Wenchen Fan
> Fix For: 1.5.0
>
>
> There is currently no error reporting for expression data types in analysis (we rely on "resolved" for that, which doesn't provide great error messages for types). It would be great to have that in checkAnalysis.
> Ideally, it should be the responsibility of each Expression itself to specify the types it requires, and report errors that way. We would need to define a simple interface for that so each Expression can implement. The default implementation can just use the information provided by ExpectsInputTypes.expectedChildTypes.
> cc [~marmbrus] what we discussed offline today.
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