[Backport stable-25-3] PR 29362: quicker result rows release to avoid potential overload

[ydbot]

Changelog entry

quicker result rows release to avoid potential overload

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

Original PR(s)

• PR quicker result rows release to avoid potential overload #29362

Metadata

• Original PR author(s): @gridnevvvit
• Cherry-picked by: @gridnevvvit
• Related issues: None

Git Cherry-Pick Log

=== Cherry-picking b52dcd2 ===
Auto-merging ydb/core/kqp/runtime/kqp_stream_lookup_worker.cpp
[cherry-pick-stable-25-3-251202-161926 e3282436c05] quicker result rows release to avoid potential overload (#29362)
 Author: Vitalii Gridnev <[email protected]>
 Date: Tue Dec 2 17:28:45 2025 +0300
 1 file changed, 81 insertions(+), 58 deletions(-)

---

PR was created by cherry-pick workflow run

[github-actions]

🟢 2025-12-02 16:20:36 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-12-02 16:23:32 UTC Pre-commit check linux-x86_64-release-asan for 769a948 has started.
⚪ 2025-12-02 16:23:47 UTC Artifacts will be uploaded here
⚪ 2025-12-02 16:27:19 UTC ya make is running...
🟡 2025-12-02 18:37:41 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?
15907	15445	0	165	279	18

🟢 2025-12-02 18:39:00 UTC Build successful.
🟡 2025-12-02 18:39:22 UTC ydbd size 3.8 GiB changed* by +116.8 KiB, which is >= 100.0 KiB vs stable-25-3: Warning

ydbd size dash	stable-25-3: 1973e3f	merge: 769a948	diff	diff %
ydbd size	4 066 343 600 Bytes	4 066 463 232 Bytes	+116.8 KiB	+0.003%
ydbd stripped size	1 514 920 544 Bytes	1 514 966 720 Bytes	+45.1 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]

⚪ 2025-12-02 16:24:22 UTC Pre-commit check linux-x86_64-relwithdebinfo for 769a948 has started.
⚪ 2025-12-02 16:24:38 UTC Artifacts will be uploaded here
⚪ 2025-12-02 16:28:24 UTC ya make is running...
🟡 2025-12-02 18:02:42 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
38782	36093	0	12	2661	16

⚪ 2025-12-02 18:06:10 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-12-02 18:23:58 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
887 (only retried tests)	866	0	0	1	20

🟢 2025-12-02 18:24:08 UTC Build successful.
🟢 2025-12-02 18:24:23 UTC ydbd size 2.3 GiB changed* by +78.9 KiB, which is < 100.0 KiB vs stable-25-3: OK

ydbd size dash	stable-25-3: 19a6baa	merge: 769a948	diff	diff %
ydbd size	2 443 137 952 Bytes	2 443 218 776 Bytes	+78.9 KiB	+0.003%
ydbd stripped size	522 886 376 Bytes	522 906 664 Bytes	+19.8 KiB	+0.004%

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