[SPARK-28834][SQL] Support sessionInitStatement in dataframe jdbc write path

[yaooqinn]

What changes were proposed in this pull request?

After each database session is opened to the remote DB and before starting to read data, this option sessionInitStatement executes a custom SQL statement to do session initialization, this change enables this behavior for writing data.

Why are the changes needed?

Session initialization also need for writing data out of spark

Does this PR introduce any user-facing change?

no

How was this patch tested?

it

[SparkQA]

Test build #111954 has finished for PR 26100 at commit 828d1ee.

• This patch fails due to an unknown error code, -9.
• This patch merges cleanly.
• This patch adds no public classes.

[SparkQA]

Test build #111953 has finished for PR 26100 at commit 46e9081.

• This patch fails due to an unknown error code, -9.
• This patch merges cleanly.
• This patch adds no public classes.

[yaooqinn]

retest this please

[SparkQA]

Test build #111965 has finished for PR 26100 at commit 828d1ee.

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

[github-actions]

We're closing this PR because it hasn't been updated in a while. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
If you'd like to revive this PR, please reopen it and ask a committer to remove the Stale tag!

[msusicky]

Hi @yaooqinn , this is still a missing feature. Is there any reason not to continue with this pull request? (maybe more tests for more platform will be appreciated, I can help with that if it is needed)