24-3-15-hotfix: ClickHouse Client optional type fix (#13815)

[azevaykin]

Changelog entry

When loading metadata from the YDB side, optional type was no longer added to the data type.

Changelog category

• Bugfix

Additional information

...

[github-actions]

⚪ 2025-01-24 16:11:45 UTC Pre-commit check for 5a0eb07 has started.
⚪ 2025-01-24 16:14:52 UTC Build linux-x86_64-release-asan is running...
🟢 2025-01-24 16:37:09 UTC Build successful.
⚪ 2025-01-24 16:38:09 UTC Tests are running...
🔴 2025-01-24 18:56:55 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10390	10276	0	40	31	43

🟢 2025-01-24 18:57:51 UTC ydbd size 5.6 GiB changed* by -96 Bytes, which is <= 0 Bytes vs stable-24-3-15-hotfix: OK

ydbd size dash	stable-24-3-15-hotfix: cc0e3f8	merge: 5a0eb07	diff	diff %
ydbd size	6 002 428 592 Bytes	6 002 428 496 Bytes	-96 Bytes	-0.000%
ydbd stripped size	1 504 203 872 Bytes	1 504 203 808 Bytes	-64 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2025-01-24 16:12:19 UTC Pre-commit check for 5a0eb07 has started.
⚪ 2025-01-24 16:14:53 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2025-01-24 16:52:52 UTC Build successful.
⚪ 2025-01-24 16:53:25 UTC Tests are running...
🔴 2025-01-24 18:33:25 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
14715	13360	0	15	1302	38

🟢 2025-01-24 18:34:13 UTC ydbd size 8.3 GiB changed* by -16 Bytes, which is <= 0 Bytes vs stable-24-3-15-hotfix: OK

ydbd size dash	stable-24-3-15-hotfix: cc0e3f8	merge: 5a0eb07	diff	diff %
ydbd size	8 874 182 808 Bytes	8 874 182 792 Bytes	-16 Bytes	-0.000%
ydbd stripped size	484 292 680 Bytes	484 292 680 Bytes	0 Bytes	0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}