24-3: 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 16:08:18 UTC Pre-commit check for b1047c7 has started.
⚪ 2025-01-24 16:10:53 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2025-01-24 16:51:05 UTC Build successful.
⚪ 2025-01-24 16:51:23 UTC Tests are running...
🔴 2025-01-24 18:34:46 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
14716	13360	0	16	1301	39

🟢 2025-01-24 18:35:31 UTC ydbd size 8.3 GiB changed* by -32 Bytes, which is <= 0 Bytes vs stable-24-3: OK

ydbd size dash	stable-24-3: cdeec5d	merge: b1047c7	diff	diff %
ydbd size	8 874 106 640 Bytes	8 874 106 608 Bytes	-32 Bytes	-0.000%
ydbd stripped size	484 288 904 Bytes	484 288 904 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}

[github-actions]

⚪ 2025-01-24 16:08:21 UTC Pre-commit check for b1047c7 has started.
⚪ 2025-01-24 16:10:58 UTC Build linux-x86_64-release-asan is running...
🟢 2025-01-24 16:33:24 UTC Build successful.
⚪ 2025-01-24 16:33:40 UTC Tests are running...
🔴 2025-01-24 18:46:06 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10388	10288	0	30	29	41

🟢 2025-01-24 18:46:51 UTC ydbd size 5.6 GiB changed* by -160 Bytes, which is <= 0 Bytes vs stable-24-3: OK

ydbd size dash	stable-24-3: cdeec5d	merge: b1047c7	diff	diff %
ydbd size	6 002 371 032 Bytes	6 002 370 872 Bytes	-160 Bytes	-0.000%
ydbd stripped size	1 504 183 264 Bytes	1 504 183 136 Bytes	-128 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}