Antalya 26.5: auto-grp-pr-1718: combined port of 4 PRs - #1951

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zvonand wants to merge 3 commits into

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feature/antalya-26.5/auto-grp-pr-1718

Commits on Jun 24, 2026

Cherry-pick of https://github.com/Altinity/ClickHouse/pull/1718 with unresolved conflict markers (resolution in next commit)
zvonand
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Resolve conflicts in cherry-pick of #1718

zvonand
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claude
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Merge pull request #1752 from Altinity/feature/antalya-26.3/pr-1673
zvonand
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