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From "Reynold Xin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-12772) Better error message for parsing failure?
Date Sun, 31 Jan 2016 07:07:39 GMT

    [ https://issues.apache.org/jira/browse/SPARK-12772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15125246#comment-15125246
] 

Reynold Xin commented on SPARK-12772:
-------------------------------------

cc [~hvanhovell] / [~viirya] any idea about this one?



> Better error message for parsing failure?
> -----------------------------------------
>
>                 Key: SPARK-12772
>                 URL: https://issues.apache.org/jira/browse/SPARK-12772
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Reynold Xin
>
> {code}
> scala> sql("select case if(true, 'one', 'two')").explain(true)
> org.apache.spark.sql.AnalysisException: org.antlr.runtime.EarlyExitException
> line 1:34 required (...)+ loop did not match anything at input '<EOF>' in case
expression
> ; line 1 pos 34
> 	at org.apache.spark.sql.catalyst.parser.ParseErrorReporter.throwError(ParseDriver.scala:140)
> 	at org.apache.spark.sql.catalyst.parser.ParseErrorReporter.throwError(ParseDriver.scala:129)
> 	at org.apache.spark.sql.catalyst.parser.ParseDriver$.parse(ParseDriver.scala:77)
> 	at org.apache.spark.sql.catalyst.CatalystQl.createPlan(CatalystQl.scala:53)
> 	at org.apache.spark.sql.hive.ExtendedHiveQlParser$$anonfun$hiveQl$1.apply(ExtendedHiveQlParser.scala:41)
> 	at org.apache.spark.sql.hive.ExtendedHiveQlParser$$anonfun$hiveQl$1.apply(ExtendedHiveQlParser.scala:40)
> {code}
> Is there a way to say something better other than "required (...)+ loop did not match
anything at input"?



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