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Fix min/max value in Iceberg writes#91589

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scanhex12 merged 1 commit intoClickHouse:25.8from
ianton-ru:fix_icebereg_write_minmax
Jan 29, 2026
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Fix min/max value in Iceberg writes#91589
scanhex12 merged 1 commit intoClickHouse:25.8from
ianton-ru:fix_icebereg_write_minmax

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Changelog category (leave one):

  • Bug Fix (user-visible misbehavior in an official stable release)

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

Fix min/max value in Iceberg writes

Documentation entry for user-facing changes

Only in 25.8 LTS.
During writing in Iceberg table ClickHouse incorrectly counts minimal and maximal values for columns.
As result min/max pruning works incorrectly.

In 25.9 code was refactored, in new variant min/max counted correctly.

  • Documentation is written (mandatory for new features)

@scanhex12 scanhex12 self-assigned this Dec 5, 2025
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clickhouse-gh bot commented Dec 5, 2025

Workflow [BackportPR], commit [f70f7a9]

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Failed test test_ddl_worker_with_loopback_hosts looks unrelated.

@scanhex12 scanhex12 merged commit 11117b5 into ClickHouse:25.8 Jan 29, 2026
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2 participants