Request statistics of different types from statistics service for CBO

[ztlpn]

Changelog entry

Optimizer now fetches histograms for better CBO quality.

Changelog category

• Improvement

Description for reviewers

[ydbot]

Run Extra Tests

Run additional tests for this PR. You can customize:

• Test Size: small, medium, large (default: all)
• Test Targets: any directory path (default: ydb/)
• Sanitizers: ASAN, MSAN, TSAN
• Coredumps: enable for debugging (default: off)
• Additional args: custom ya make arguments

[github-actions]

⚪ 2025-12-23 18:04:14 UTC Pre-commit check linux-x86_64-release-asan for bce4626 has started.
⚪ 2025-12-23 18:04:50 UTC Artifacts will be uploaded here
⚪ 2025-12-23 18:06:44 UTC ya make is running...
🟡 2025-12-23 19:15:00 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?
13909	13783	0	98	12	16

🟢 2025-12-23 19:15:09 UTC Build successful.
🟡 2025-12-23 19:15:38 UTC ydbd size 3.8 GiB changed* by +263.6 KiB, which is >= 100.0 KiB vs main: Warning

ydbd size dash	main: 7a46c62	merge: bce4626	diff	diff %
ydbd size	4 086 795 328 Bytes	4 087 065 280 Bytes	+263.6 KiB	+0.007%
ydbd stripped size	1 530 347 384 Bytes	1 530 439 320 Bytes	+89.8 KiB	+0.006%

^{*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]

🟢 2025-12-23 18:04:17 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-12-23 18:04:38 UTC Pre-commit check linux-x86_64-relwithdebinfo for bce4626 has started.
⚪ 2025-12-23 18:04:57 UTC Artifacts will be uploaded here
⚪ 2025-12-23 18:07:05 UTC ya make is running...
🟡 2025-12-23 20:06:25 UTC Some tests failed, follow the links below. Going to retry failed tests...

Details

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
43969	40403	0	182	3350	34

⚪ 2025-12-23 20:06:42 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-12-23 20:42:34 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
1926 (only retried tests)	1913	0	0	0	13

🟢 2025-12-23 20:42:40 UTC Build successful.
🟡 2025-12-23 20:43:04 UTC ydbd size 2.3 GiB changed* by +140.4 KiB, which is >= 100.0 KiB vs main: Warning

ydbd size dash	main: 7a46c62	merge: bce4626	diff	diff %
ydbd size	2 486 521 800 Bytes	2 486 665 560 Bytes	+140.4 KiB	+0.006%
ydbd stripped size	529 311 712 Bytes	529 341 536 Bytes	+29.1 KiB	+0.006%

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