Make sure parse_url has the same semantics as Spark

[jackylee-ch]

Here are the changes in this pr.

1. support parse fragment;
2. change authority semantics;
3. return null pointer while query or fragment is empty;

[github-actions]

Thanks for opening a pull request!

If this is not a minor PR. Could you open an issue for this pull request on JIRA? https://issues.apache.org/jira/browse/ARROW

Opening JIRAs ahead of time contributes to the Openness of the Apache Arrow project.

Then could you also rename pull request title in the following format?

ARROW-${JIRA_ID}: [${COMPONENT}] ${SUMMARY}

or

MINOR: [${COMPONENT}] ${SUMMARY}

See also:

• Other pull requests
• Contribution Guidelines - How to contribute patches

[PHILO-HE]

Some spark tests cases can pass with this patch. But it looks like there are still some spark UT failure.
It is recommended to port the test cases in StringFunctionsSuite.scala of gazelle/spark to gandiva UT to facilitate debugging. Thanks!

[jackylee-ch]

Some spark tests cases can pass with this patch. But it looks like there are still some spark UT failure. It is recommended to port the test cases in StringFunctionsSuite.scala of gazelle/spark to gandiva UT to facilitate debugging. Thanks!

Thanks for your advise, I have changed this PR and passed the StringFunctionsSuite.scala in gazelle/spark.

[PHILO-HE]

Great! The patch looks good! The related scala UT passed. @zhouyuan, please have a further check.