[Backport stable-26-1] PR #35271: statistics: wait for base stats in analyze compatibility test

[ydbot]

Changelog entry

statistics: wait for base stats in analyze compatibility test

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

Original PR(s)

• PR statistics: wait for base stats in analyze compatibility test #35271

Metadata

• Original PR author(s): @ztlpn
• Cherry-picked by: @ztlpn
• Related issues: Test failure in ydb/tests/compatibility/test_statistics.py.TestAnalyzeRollingUpdate.test[rolling_stable-26-1-1_to_prestable-26-2]: planner selectivity estimate is 0 #35056

Git Cherry-Pick Log

=== Cherry-picking 198aab0 ===
[cherry-pick-stable-26-1-260303-103539 9cedb28452d] statistics: wait for base stats in analyze compatibility test (#35271)
 Author: Alexey Zatelepin <ztlpn@ydb.tech>
 Date: Tue Mar 3 13:26:18 2026 +0300
 1 file changed, 24 insertions(+)

---

PR was created by cherry-pick workflow run

[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]

🟢 2026-03-03 10:37:08 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2026-03-03 10:39:45 UTC Pre-commit check linux-x86_64-relwithdebinfo for 6f8ba22 has started.
⚪ 2026-03-03 10:40:04 UTC Artifacts will be uploaded here
⚪ 2026-03-03 10:42:14 UTC ya make is running...
🟢 2026-03-03 10:42:54 UTC Tests successful.

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
30	30	0	0	0	0

🟢 2026-03-03 10:43:01 UTC Build successful.

[github-actions]

⚪ 2026-03-03 10:40:37 UTC Pre-commit check linux-x86_64-release-asan for 6f8ba22 has started.
⚪ 2026-03-03 10:40:53 UTC Artifacts will be uploaded here
⚪ 2026-03-03 10:43:09 UTC ya make is running...
🟢 2026-03-03 10:43:35 UTC Tests successful.

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
28	28	0	0	0	0

🟢 2026-03-03 10:43:42 UTC Build successful.