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Fix SettingsChangesHistory.cpp #2293

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Fix SettingsChangesHistory.cpp #2293

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eccb666
Fix SettingsChangesHistory.cpp
ianton-ru Aug 31, 2026
7515aa5
Fix allow_experimental_database_s3_tables section
ianton-ru Sep 1, 2026
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21 changes: 12 additions & 9 deletions src/Core/SettingsChangesHistory.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -95,15 +95,6 @@ const VersionToSettingsChangesMap & getSettingsChangesHistory()
{"allow_experimental_query_deduplication", false, false, "The setting is obsolete, the feature has been removed."},
{"query_plan_min_columns_for_join_lazy_indexing", 0, 3, "Control the minimum number of payload columns from the left side required for enabling lazy indexing optimization in JOIN"},
{"query_plan_max_limit_for_join_lazy_indexing", 1000, 1000, "Added new setting to control maximum limit value that allows to use query plan for lazy join indexing optimization. If zero, there is no limit"},
{"allow_experimental_database_s3_tables", false, false, "New setting to enable experimental database S3 tables (AWS Iceberg REST catalog)."},
{"object_storage_cluster_join_mode", "allow", "allow", "New setting"},
{"export_merge_tree_partition_task_timeout_seconds", "3600", "86400", "Increase default value to make it more realistic"},
{"export_merge_tree_part_allow_lossy_cast", false, false, "New setting to gate lossy casts in EXPORT PART/PARTITION behind explicit acknowledgment"},
{"export_merge_tree_part_schema_match_mode", "POSITION", "POSITION", "New setting to control how EXPORT PART/EXPORT PARTITION matches source columns to destination columns"},
{"export_merge_tree_part_ignore_extra_source_columns", false, false, "New setting to allow EXPORT PART/EXPORT PARTITION when the source table has columns absent from the destination"},
{"export_merge_tree_partition_retry_initial_backoff_seconds", 5, 5, "New setting for exponential back-off between failed part export retries in an export partition task"},
{"export_merge_tree_partition_retry_max_backoff_seconds", 300, 300, "New setting capping the exponential back-off between failed part export retries in an export partition task"},
{"export_merge_tree_partition_max_retries", 3, 3, "Obsolete and ignored: export partition tasks now retry retryable failures until the task timeout and fail immediately on non-retryable errors, instead of using a fixed retry budget"},
});

addSettingsChanges(settings_changes_history, "26.5",
Expand Down Expand Up @@ -217,6 +208,18 @@ const VersionToSettingsChangesMap & getSettingsChangesHistory()
{"variant_throw_on_type_mismatch", true, true, "New setting to control type mismatch behavior in default Variant implementation"},
{"dynamic_throw_on_type_mismatch", true, true, "New setting to control type mismatch behavior in default Dynamic implementation"},
});
addSettingsChanges(settings_changes_history, "26.3.1.20001.altinityantalya",
{
{"object_storage_cluster_join_mode", "allow", "allow", "New setting"},
{"export_merge_tree_partition_task_timeout_seconds", "3600", "86400", "Increase default value to make it more realistic"},
{"export_merge_tree_part_allow_lossy_cast", false, false, "New setting to gate lossy casts in EXPORT PART/PARTITION behind explicit acknowledgment"},
{"export_merge_tree_part_schema_match_mode", "POSITION", "POSITION", "New setting to control how EXPORT PART/EXPORT PARTITION matches source columns to destination columns"},
{"export_merge_tree_part_ignore_extra_source_columns", false, false, "New setting to allow EXPORT PART/EXPORT PARTITION when the source table has columns absent from the destination"},
{"export_merge_tree_partition_retry_initial_backoff_seconds", 5, 5, "New setting for exponential back-off between failed part export retries in an export partition task"},
{"export_merge_tree_partition_retry_max_backoff_seconds", 300, 300, "New setting capping the exponential back-off between failed part export retries in an export partition task"},
{"export_merge_tree_partition_max_retries", 3, 3, "Obsolete and ignored: export partition tasks now retry retryable failures until the task timeout and fail immediately on non-retryable errors, instead of using a fixed retry budget"},
{"allow_experimental_database_s3_tables", false, false, "New setting to enable experimental database S3 tables (AWS Iceberg REST catalog)."},
});
addSettingsChanges(settings_changes_history, "26.3",
{
{"defer_partition_pruning_after_final", false, true, "Gates the FINAL planner's unconditional skipping of partition pruning when the partition-key column is not in the sorting key. The behavior change itself shipped silently in 26.3 via https://github.com/ClickHouse/ClickHouse/pull/98242; this entry retroactively documents it so `compatibility = '26.2'` restores the pre-regression behavior (0 = prune before FINAL, fast; 1 = defer pruning, correctness-safe)."},
Expand Down
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