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https://issues.apache.org/jira/browse/SPARK-12982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15123388#comment-15123388
]
Jayadevan M commented on SPARK-12982:
-------------------------------------
yes, was able to replicate.
> SQLContext: temporary table registration does not accept valid identifier
> -------------------------------------------------------------------------
>
> Key: SPARK-12982
> URL: https://issues.apache.org/jira/browse/SPARK-12982
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.6.0
> Reporter: Grzegorz Chilkiewicz
> Priority: Minor
> Labels: sql
>
> We have encountered very strange behavior of SparkSQL temporary table
> registration.
> What identifiers for temporary table should be valid?
> Alphanumerical + '_' with at least one non-digit?
> Valid identifiers:
> df
> 674123a
> 674123_
> a0e97c59_4445_479d_a7ef_d770e3874123
> 1ae97c59_4445_479d_a7ef_d770e3874123
> Invalid identifier:
> 10e97c59_4445_479d_a7ef_d770e3874123
> Stack trace:
> {code:xml}
> java.lang.RuntimeException: [1.1] failure: identifier expected
> 10e97c59_4445_479d_a7ef_d770e3874123
> ^
> at scala.sys.package$.error(package.scala:27)
> at
> org.apache.spark.sql.catalyst.SqlParser$.parseTableIdentifier(SqlParser.scala:58)
> at org.apache.spark.sql.SQLContext.table(SQLContext.scala:827)
> at org.apache.spark.sql.SQLContext.dropTempTable(SQLContext.scala:763)
> at
> SparkSqlContextTempTableIdentifier$.identifierCheck(SparkSqlContextTempTableIdentifier.scala:9)
> at
> SparkSqlContextTempTableIdentifier$.main(SparkSqlContextTempTableIdentifier.scala:42)
> at
> SparkSqlContextTempTableIdentifier.main(SparkSqlContextTempTableIdentifier.scala)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at sbt.Run.invokeMain(Run.scala:67)
> at sbt.Run.run0(Run.scala:61)
> at sbt.Run.sbt$Run$$execute$1(Run.scala:51)
> at sbt.Run$$anonfun$run$1.apply$mcV$sp(Run.scala:55)
> at sbt.Run$$anonfun$run$1.apply(Run.scala:55)
> at sbt.Run$$anonfun$run$1.apply(Run.scala:55)
> at sbt.Logger$$anon$4.apply(Logger.scala:85)
> at sbt.TrapExit$App.run(TrapExit.scala:248)
> at java.lang.Thread.run(Thread.java:745)
> {code}
> Code to reproduce this bug:
> https://github.com/grzegorz-chilkiewicz/SparkSqlContextTempTableIdentifier
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