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https://issues.apache.org/jira/browse/SPARK-12772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15146710#comment-15146710
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Herman van Hovell commented on SPARK-12772:
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I'll have a look.
> Better error message for syntax error in the SQL parser
> -------------------------------------------------------
>
> Key: SPARK-12772
> URL: https://issues.apache.org/jira/browse/SPARK-12772
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.0
> 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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