Xiao Li created SPARK-21648:
-------------------------------
Summary: 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
{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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