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https://issues.apache.org/jira/browse/SPARK-48806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kent Yao reassigned SPARK-48806:
--------------------------------
Assignee: Zhen Wang
> Pass actual exception when url_decode fails
> -------------------------------------------
>
> Key: SPARK-48806
> URL: https://issues.apache.org/jira/browse/SPARK-48806
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.0.0, 3.5.1
> Reporter: Zhen Wang
> Assignee: Zhen Wang
> Priority: Minor
> Labels: pull-request-available
>
> Currently url_decode function ignores actual exception, which contains
> information that is useful for quickly locating the problem.
>
> Like executing this sql:
> {code:java}
> select url_decode('https%3A%2F%2spark.apache.org'); {code}
> We only get the error message:
> {code:java}
> org.apache.spark.SparkIllegalArgumentException: [CANNOT_DECODE_URL] The
> provided URL cannot be decoded: https%3A%2F%2spark.apache.org. Please ensure
> that the URL is properly formatted and try again.
> at
> org.apache.spark.sql.errors.QueryExecutionErrors$.illegalUrlError(QueryExecutionErrors.scala:376)
> at
> org.apache.spark.sql.catalyst.expressions.UrlCodec$.decode(urlExpressions.scala:118)
> at
> org.apache.spark.sql.catalyst.expressions.UrlCodec.decode(urlExpressions.scala)
> {code}
> However, the actual useful exception information is ignored:
> {code:java}
> java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters in
> escape (%) pattern - Error at index 1 in: "2s" {code}
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