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https://issues.apache.org/jira/browse/SPARK-24077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16879858#comment-16879858
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HondaWei commented on SPARK-24077:
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Hi [~hyukjin.kwon]
Thank you! I am going to trace the code and modify it in the near term if
[~benedict jin] doesn't work on it.
> Issue a better error message for `CREATE TEMPORARY FUNCTION IF NOT EXISTS`
> --------------------------------------------------------------------------
>
> Key: SPARK-24077
> URL: https://issues.apache.org/jira/browse/SPARK-24077
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Benedict Jin
> Priority: Major
> Labels: starter
>
> The error message of {{CREATE TEMPORARY FUNCTION IF NOT EXISTS}} looks
> confusing:
> {code}
> scala>
> org.apache.spark.sql.SparkSession.builder().enableHiveSupport.getOrCreate.sql("CREATE
> TEMPORARY FUNCTION IF NOT EXISTS yuzhouwan as
> 'org.apache.spark.sql.hive.udf.YuZhouWan'")
> {code}
> {code}
> org.apache.spark.sql.catalyst.parser.ParseException:
> mismatched input 'NOT' expecting \{'.', 'AS'}(line 1, pos 29)
> == SQL ==
> CREATE TEMPORARY FUNCTION IF NOT EXISTS yuzhouwan as
> 'org.apache.spark.sql.hive.udf.YuZhouWan'
> -----------------------------^^^
> at
> org.apache.spark.sql.catalyst.parser.ParseException.withCommand(ParseDriver.scala:197)
> at
> org.apache.spark.sql.catalyst.parser.AbstractSqlParser.parse(ParseDriver.scala:99)
> at
> org.apache.spark.sql.execution.SparkSqlParser.parse(SparkSqlParser.scala:45)
> at
> org.apache.spark.sql.catalyst.parser.AbstractSqlParser.parsePlan(ParseDriver.scala:53)
> at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:592)
> ... 48 elided
> {code}
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