ClickHouse Client optional type fix

[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 14:12:27 UTC Pre-commit check linux-x86_64-relwithdebinfo for b260b75 has started.
⚪ 2025-01-24 14:12:37 UTC Artifacts will be uploaded here
⚪ 2025-01-24 14:15:28 UTC ya make is running...
🟡 2025-01-24 15:03:16 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
18743	17417	0	18	1184	124

⚪ 2025-01-24 15:05:22 UTC ya make is running... (failed tests rerun, try 2)
🟡 2025-01-24 15:17:29 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
216 (only retried tests)	95	0	2	0	119

⚪ 2025-01-24 15:17:39 UTC ya make is running... (failed tests rerun, try 3)
🟢 2025-01-24 15:29:48 UTC Tests successful.

Test history | Ya make output | Test bloat | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
178 (only retried tests)	61	0	0	0	117

🟢 2025-01-24 15:29:55 UTC Build successful.
🟢 2025-01-24 15:30:18 UTC ydbd size 2.1 GiB changed* by 0 Bytes, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 3d22318	merge: b260b75	diff	diff %
ydbd size	2 221 636 256 Bytes	2 221 636 256 Bytes	0 Bytes	0.000%
ydbd stripped size	469 851 472 Bytes	469 851 472 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 14:12:29 UTC Pre-commit check linux-x86_64-release-asan for b260b75 has started.
⚪ 2025-01-24 14:12:41 UTC Artifacts will be uploaded here
⚪ 2025-01-24 14:15:40 UTC ya make is running...
🟡 2025-01-24 15:18:29 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
11284	11199	0	35	22	28

⚪ 2025-01-24 15:19:54 UTC ya make is running... (failed tests rerun, try 2)
🟡 2025-01-24 15:36:36 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
132 (only retried tests)	84	0	18	3	27

⚪ 2025-01-24 15:36:46 UTC ya make is running... (failed tests rerun, try 3)
🟡 2025-01-24 15:48:59 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Test history | Ya make output | Test bloat | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
87 (only retried tests)	43	0	15	1	28

🟢 2025-01-24 15:49:07 UTC Build successful.
🟢 2025-01-24 15:49:36 UTC ydbd size 3.6 GiB changed* by -96 Bytes, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 3d22318	merge: b260b75	diff	diff %
ydbd size	3 860 438 408 Bytes	3 860 438 312 Bytes	-96 Bytes	-0.000%
ydbd stripped size	1 350 178 768 Bytes	1 350 178 704 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}