[SPARK-32240][SQL] Use URL to parse url string

[ulysses-you]

What changes were proposed in this pull request?

Change URI back to URL.

The issue JIRA SPARK-32240.
Some history #14008 and #14488.

Why are the changes needed?

select parse_url('https://a.b.c/index.php?params1=a|b&params2=x', 'HOST')

-- before this PR
null

-- after this PR
a.b.c

Hive also use URL to parse url string.

Does this PR introduce any user-facing change?

Yes, correct the result.

How was this patch tested?

Add test.

[SparkQA]

Kubernetes integration test starting
URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/35538/

[SparkQA]

Kubernetes integration test status success
URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/35538/

[srowen]

As in the JIRA, that's not quite a valid http URI. I realize the issue is Hive compatibility, but, changing this behavior may break code in other ways. I'd rather do the right-er thing here all else equal and leave it.

[SparkQA]

Test build #130932 has finished for PR 30333 at commit f62e88b.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[ulysses-you]

@srowen Yeah, that's a Hive compatible issue. I always want to eliminate such issue in first thought because of our case. But I agree with your point that it's not a valid url, seems we can close both PR and JIRA.

[ulysses-you]

BTW, do we need throw exception in ANSI mode if we accept a no-vaild url instead of return null ? cc @srowen @cloud-fan

[cloud-fan]

I think so. @ulysses-you can you create a sub-task in https://issues.apache.org/jira/browse/SPARK-33275? thanks!

[ulysses-you]

OK, will do it.