[KQP RBO] Add distinct all aggregation

[denis0x0D]

Changelog entry

Issue #27661

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

...

[github-actions]

⚪ 2025-11-07 14:51:13 UTC Pre-commit check linux-x86_64-release-asan for 3f86b48 has started.
⚪ 2025-11-07 14:51:29 UTC Artifacts will be uploaded here
⚪ 2025-11-07 14:53:44 UTC ya make is running...
⚫ 2025-11-07 16:25:11 UTC Check cancelled

[github-actions]

⚪ 2025-11-07 14:51:57 UTC Pre-commit check linux-x86_64-relwithdebinfo for 3f86b48 has started.
⚪ 2025-11-07 14:52:15 UTC Artifacts will be uploaded here
⚪ 2025-11-07 14:54:31 UTC ya make is running...
🟡 2025-11-07 16:16:26 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
38749	35930	0	2	2792	25

⚪ 2025-11-07 16:16:45 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-11-07 16:24:28 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
53 (only retried tests)	38	0	0	0	15

🟢 2025-11-07 16:24:37 UTC Build successful.
🟢 2025-11-07 16:24:56 UTC ydbd size 2.3 GiB changed* by +35.0 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 45828a5	merge: 3f86b48	diff	diff %
ydbd size	2 431 787 888 Bytes	2 431 823 752 Bytes	+35.0 KiB	+0.001%
ydbd stripped size	516 526 256 Bytes	516 531 760 Bytes	+5.4 KiB	+0.001%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}
⚫ 2025-11-07 16:24:58 UTC Check cancelled

[github-actions]

🟢 2025-11-14 17:10:52 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-11-07 16:26:50 UTC Pre-commit check linux-x86_64-release-asan for 8c71928 has started.
⚪ 2025-11-07 16:27:08 UTC Artifacts will be uploaded here
⚪ 2025-11-07 16:29:29 UTC ya make is running...
🟡 2025-11-07 18:28:50 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
16100	15623	0	199	243	35

🟢 2025-11-07 18:29:04 UTC Build successful.
🟡 2025-11-07 18:29:31 UTC ydbd size 3.8 GiB changed* by +111.8 KiB, which is >= 100.0 KiB vs main: Warning

ydbd size dash	main: e452dca	merge: 8c71928	diff	diff %
ydbd size	4 072 977 000 Bytes	4 073 091 472 Bytes	+111.8 KiB	+0.003%
ydbd stripped size	1 511 834 312 Bytes	1 511 871 752 Bytes	+36.6 KiB	+0.002%

^{*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]

⚪ 2025-11-07 16:29:12 UTC Pre-commit check linux-x86_64-relwithdebinfo for 8c71928 has started.
⚪ 2025-11-07 16:29:28 UTC Artifacts will be uploaded here
⚪ 2025-11-07 16:31:50 UTC ya make is running...
🟡 2025-11-07 18:07:30 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
39703	36862	0	2	2805	34

⚪ 2025-11-07 18:07:50 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-11-07 18:20:14 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
86 (only retried tests)	68	0	0	0	18

🟢 2025-11-07 18:20:24 UTC Build successful.
🟢 2025-11-07 18:20:45 UTC ydbd size 2.3 GiB changed* by +59.0 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: e452dca	merge: 8c71928	diff	diff %
ydbd size	2 431 798 992 Bytes	2 431 859 440 Bytes	+59.0 KiB	+0.002%
ydbd stripped size	516 528 816 Bytes	516 540 464 Bytes	+11.4 KiB	+0.002%

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