Issues

• FilterTransform does not update _row_number info, so _row_number is wrong after Iceberg equality deletes

  Altinity/ClickHouse#2605 · Filter by author minguyen9988 opened on Oct 18, 2026

• Parquet V3 reader: PREWHERE with a shared sub-expression fails with NOT_FOUND_COLUMN_IN_BLOCK or returns a wrong count

  Altinity/ClickHouse#2604 · Filter by author minguyen9988 opened on Oct 18, 2026

• Analyzer: empty-string comparison rewrite skips LowCardinality(String), so Distributed plans diverge

  Altinity/ClickHouse#2603 · Filter by author minguyen9988 opened on Oct 18, 2026

• Filter on a view over a cluster table function is not sent to the shards

  Altinity/ClickHouse#2602 · Filter by author minguyen9988 opened on Oct 18, 2026

• IcebergLocal: concurrent INSERTs silently lose commits because local object storage ignores If-None-Match

  Altinity/ClickHouse#2601 · Filter by author minguyen9988 opened on Oct 18, 2026

• Iceberg export: sparse and const columns reach the format writer without materialization

  Altinity/ClickHouse#2600 · Filter by author minguyen9988 opened on Oct 18, 2026

• Parquet Map subcolumns m.keys and m.values silently return empty arrays

  Altinity/ClickHouse#2599 · Filter by author minguyen9988 opened on Oct 18, 2026

• Parquet V3 reader: std::out_of_range from a dropped PREWHERE output slot (backport of #113956)

  Altinity/ClickHouse#2598 · Filter by author minguyen9988 opened on Oct 18, 2026

• extractSubplan drops storage holders and table locks, correlated subqueries can use freed storage

  Altinity/ClickHouse#2597 · Filter by author minguyen9988 opened on Oct 18, 2026

• ReadFromPart in MergeTreeSequentialSource ignores the mark ranges of RangesInDataPart

  Altinity/ClickHouse#2596 · Filter by author minguyen9988 opened on Oct 18, 2026

• CI: arm builds on 25.8 clone abseil-cpp from GitHub during cmake and fail on 401

  antalya-25.8bugstable
  Altinity/ClickHouse#2583 · Filter by author CarlosFelipeOR opened on Oct 16, 2026

• EXPORT PARTITION: force-replace and the new Keeper key can duplicate or strand exports

  antalyabugexport partition
  Altinity/ClickHouse#2576 · Filter by author DimensionWieldr opened on Oct 15, 2026

• SHOW CREATE TABLE omits PARTITION BY and ORDER BY for Iceberg tables in DataLakeCatalog databases with catalog_type unity or hive

  Altinity/ClickHouse#2562 · Filter by author minguyen9988 opened on Oct 14, 2026

• Umbrella issue: Update all packages on Alpine

  Altinity/ClickHouse#2536 · Filter by author mkmkme opened on Oct 10, 2026

• Iceberg read optimization returns NULL for columns without manifest stats (partial column metrics, e.g. Databricks UniForm >32 columns)

  antalyaantalya-26.6bug
  Altinity/ClickHouse#2525 · Filter by author BorisTyshkevich opened on Oct 9, 2026
  

• CAS: a coalesced CachedForLoad follower returns the leader's manifest without an id check

  antalya-26.6bugCAS
  Altinity/ClickHouse#2514 · Filter by author alsugiliazova opened on Oct 8, 2026
  

• Defects found for PR #2305

  antalya
  Bug

  Altinity/ClickHouse#2500 · Filter by author Selfeer opened on Oct 7, 2026
  

• Iceberg v3 _row_id is shifted after equality deletes

  antalyaantalya-26.6bug
  Altinity/ClickHouse#2493 · Filter by author DimensionWieldr opened on Oct 6, 2026

• Alter table add column first/after issues

  antalya
  Altinity/ClickHouse#2492 · Filter by author subkanthi opened on Oct 6, 2026
  

• CAS: batches for pending_deletes

  antalyaCASenhancement
  Feature

  Altinity/ClickHouse#2480 · Filter by author k-morozov opened on Oct 5, 2026
  

• CAS: AsyncLoader fails to load cas table

  antalyaCAS
  Altinity/ClickHouse#2460 · Filter by author eyyu opened on Oct 1, 2026
  4

  

• system.iceberg_history and system.iceberg_files list nothing for Glue catalog tables

  antalyabugcatalogs
  Altinity/ClickHouse#2457 · Filter by author DimensionWieldr opened on Sep 30, 2026

• Glue DataLakeCatalog ALTER schema commit fails after 100 retries

  antalyabugcatalogs
  Altinity/ClickHouse#2454 · Filter by author DimensionWieldr opened on Sep 30, 2026

• Swarm: tracking

  antalyaswarms
  Altinity/ClickHouse#2447 · Filter by author ianton-ru opened on Sep 30, 2026
  

• CAS Backlog

  antalyaCAS
  Altinity/ClickHouse#2441 · Filter by author filimonov opened on Sep 27, 2026