Merge pull request #881 from Altinity/backports/25.3/80583_iceberg_enable_part_pruning_by_default

Antalya 25.3: Backport of ClickHouse#80583 - Iceberg enable part pruning by default

Author: Enmk

src/Core/Settings.cpp

@@ -5719,7 +5719,7 @@ Query Iceberg table using the specific snapshot id.
     DECLARE(Bool, allow_deprecated_error_prone_window_functions, false, R"(
 Allow usage of deprecated error prone window functions (neighbor, runningAccumulate, runningDifferenceStartingWithFirstValue, runningDifference)
 )", 0) \
-    DECLARE(Bool, use_iceberg_partition_pruning, false, R"(
+    DECLARE(Bool, use_iceberg_partition_pruning, true, R"(
 Use Iceberg partition pruning for Iceberg tables
 )", 0) \
     DECLARE(Bool, allow_deprecated_snowflake_conversion_functions, false, R"(

src/Core/SettingsChangesHistory.cpp

@@ -70,6 +70,7 @@ const VersionToSettingsChangesMap & getSettingsChangesHistory()
         {
             // Altinity Antalya modifications atop of 25.3
             {"lock_object_storage_task_distribution_ms", 0, 0, "New setting."},
+            {"use_iceberg_partition_pruning", false, true, "Enable Iceberg partition pruning by default."},
         });
         addSettingsChanges(settings_changes_history, "25.2.1.20000",
         {
@@ -134,7 +135,7 @@ const VersionToSettingsChangesMap & getSettingsChangesHistory()
             {"distributed_cache_connect_max_tries", 20, 20, "Cloud only"},
             {"query_plan_use_new_logical_join_step", false, false, "New join step, internal change"},
             {"distributed_cache_min_bytes_for_seek", 0, 0, "New private setting."},
-            {"use_iceberg_partition_pruning", false, false, "New setting"},
+            {"use_iceberg_partition_pruning", false, false, "New setting for Iceberg partition pruning."},
             {"max_bytes_ratio_before_external_group_by", 0.0, 0.5, "Enable automatic spilling to disk by default."},
             {"max_bytes_ratio_before_external_sort", 0.0, 0.5, "Enable automatic spilling to disk by default."},
             {"min_external_sort_block_bytes", 0., 100_MiB, "New setting."},