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Antalya 25.8.12 Backport of #87508: Distributed execution: better split tasks#1237

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zvonand merged 7 commits intoantalya-25.8from
backports/antalya-25.8.12/87508
Dec 22, 2025
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Antalya 25.8.12 Backport of #87508: Distributed execution: better split tasks#1237
zvonand merged 7 commits intoantalya-25.8from
backports/antalya-25.8.12/87508

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@zvonand zvonand commented Dec 17, 2025 •
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Changelog category (leave one):

  • Performance Improvement

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Distributed execution: better split tasks by row groups IDs, not by files (ClickHouse#87508 by @scanhex12)

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Exclude tests:

  • Fast test
  • Integration Tests
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  • Stateful tests
  • Performance tests
  • All with ASAN
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Regression jobs to run:

  • Fast suites (mostly <1h)
  • Aggregate Functions (2h)
  • Alter (1.5h)
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  • SSL Server (1h)
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github-actions bot commented Dec 17, 2025 •
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Workflow [PR], commit [98c5076]

@zvonand zvonand force-pushed the backports/antalya-25.8.12/87508 branch from c8192a3 to 89ad25c Compare December 17, 2025 16:48
@zvonand zvonand force-pushed the backports/antalya-25.8.12/87508 branch 3 times, most recently from cebb7aa to 0debe0c Compare December 19, 2025 23:23
@zvonand
fix
2b72104 
fix build
@zvonand zvonand force-pushed the backports/antalya-25.8.12/87508 branch from 0debe0c to 2b72104 Compare December 20, 2025 15:42
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zvonand commented Dec 22, 2025

test_read_constant_columns_optimization is failing, investigating

@zvonand zvonand merged commit 3de0abb into antalya-25.8 Dec 22, 2025
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alsugiliazova commented Dec 24, 2025

Started clickhouse-regression run for latest commit from this pr https://github.com/Altinity/clickhouse-regression/actions/runs/20475737620 for verification

@alsugiliazova alsugiliazova added the verified Verified by QA label Jan 6, 2026
@CarlosFelipeOR CarlosFelipeOR mentioned this pull request Jan 7, 2026
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@svb-alt svb-alt added the antalya-obsolete PR exists in higher Altinity release (doesn’t need forward porting) label Feb 6, 2026
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antalya antalya-25.8 antalya-obsolete PR exists in higher Altinity release (doesn’t need forward porting) backport Backport verified Verified by QA

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@zvonand @alsugiliazova @svb-alt @scanhex12