use nullable columns for tpcds

[iddqdex]

#5494
Оставил not null только для ключей

[github-actions]

⚪ 2024-07-09 07:42:31 UTC Pre-commit check for b3b421b has started.
⚪ 2024-07-09 07:44:31 UTC Build linux-x86_64-release-clang14 is running...
🟢 2024-07-09 07:46:11 UTC Build successful.

[github-actions]

⚪ 2024-07-09 07:58:09 UTC Pre-commit check for b3b421b has started.
⚪ 2024-07-09 08:00:51 UTC Build linux-x86_64-release-asan is running...
🟢 2024-07-09 08:02:31 UTC Build successful.
⚪ 2024-07-09 08:02:46 UTC Tests are running...
🔴 2024-07-09 08:11:04 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
608	597	0	1	1	9

🟢 2024-07-09 08:11:21 UTC ydbd size 5.2 GiB changed* by -594.4 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: b0efa0f	merge: b3b421b	diff	diff %
ydbd size	5 611 509 936 Bytes	5 610 901 312 Bytes	-594.4 KiB	-0.011%
ydbd stripped size	1 206 639 576 Bytes	1 206 601 592 Bytes	-37.1 KiB	-0.003%

^{*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]

⚪ 2024-07-09 08:51:42 UTC Pre-commit check for b3b421b has started.
⚪ 2024-07-09 08:54:21 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-07-09 08:56:38 UTC Build successful.
⚪ 2024-07-09 08:57:00 UTC Tests are running...
🟢 2024-07-09 09:02:55 UTC Tests successful.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
622	620	0	0	2	0

🟢 2024-07-09 09:03:10 UTC ydbd size 8.1 GiB changed* by -1.2 MiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: b0efa0f	merge: b3b421b	diff	diff %
ydbd size	8 721 695 352 Bytes	8 720 463 160 Bytes	-1.2 MiB	-0.014%
ydbd stripped size	475 008 864 Bytes	474 985 760 Bytes	-22.6 KiB	-0.005%

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