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https://issues.apache.org/jira/browse/SPARK-21648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xiao Li resolved SPARK-21648.
-----------------------------
Resolution: Fixed
Fix Version/s: 2.3.0
2.2.1
> Confusing assert failure in JDBC source when users misspell the option
> `partitionColumn`
> ----------------------------------------------------------------------------------------
>
> Key: SPARK-21648
> URL: https://issues.apache.org/jira/browse/SPARK-21648
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Xiao Li
> Assignee: Xiao Li
> Fix For: 2.2.1, 2.3.0
>
>
> {noformat}
> CREATE TABLE mytesttable1
> USING org.apache.spark.sql.jdbc
> OPTIONS (
> url
> 'jdbc:mysql://${jdbcHostname}:${jdbcPort}/${jdbcDatabase}?user=${jdbcUsername}&password=${jdbcPassword}',
>
> dbtable 'mytesttable1',
> paritionColumn 'state_id',
> lowerBound '0',
> upperBound '52',
> numPartitions '53',
> fetchSize '10000'
> )
> {noformat}
> The above option name `paritionColumn` is wrong. That mean, users did not
> provide the value for `partitionColumn`. In such case, users hit a confusing
> error
> {noformat}
> AssertionError: assertion failed
> java.lang.AssertionError: assertion failed
> at scala.Predef$.assert(Predef.scala:156)
> at
> org.apache.spark.sql.execution.datasources.jdbc.JdbcRelationProvider.createRelation(JdbcRelationProvider.scala:39)
> at
> org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:312)
> {noformat}
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