Zhen Wang created SPARK-48806:
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Summary: 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: 3.5.1, 4.0.0
Reporter: Zhen Wang
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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