Antalya 26.5: Forward port of export part and partition#1963

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zvonand wants to merge 11 commits into

antalya-26.5from

feature/antalya-26.5/pr-1713

Commits on Jun 25, 2026

Cherry-pick of https://github.com/Altinity/ClickHouse/pull/1388 with unresolved conflict markers (resolution in next commit)
zvonand
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Resolve conflicts in cherry-pick of #1388
zvonand
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Cherry-pick of https://github.com/Altinity/ClickHouse/pull/1402 with unresolved conflict markers (resolution in next commit)
zvonand
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Resolve conflicts in cherry-pick of #1402
zvonand
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Merge pull request #1490 from Altinity/export_filename_pattern_setting
zvonand
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Merge pull request #1499 from Altinity/export_partition_increment_scheduled_after_scheduling
zvonand
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Merge pull request #1593 from Altinity/fix_query_cancelled_not_releasing_the_lock
zvonand
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Cherry-pick of https://github.com/Altinity/ClickHouse/pull/1618 with unresolved conflict markers (resolution in next commit)
zvonand
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Resolve conflicts in cherry-pick of #1618
zvonand
committed
Cherry-pick of https://github.com/Altinity/ClickHouse/pull/1713 with unresolved conflict markers (resolution in next commit)
zvonand
committed
Resolve conflicts in cherry-pick of #1713
zvonand
committed