Parallel relicas: use local plan for local replica by default

src/Core/Settings.cpp

@@ -965,7 +965,7 @@ namespace ErrorCodes
     M(Bool, parallel_replicas_prefer_local_join, true, "If true, and JOIN can be executed with parallel replicas algorithm, and all storages of right JOIN part are *MergeTree, local JOIN will be used instead of GLOBAL JOIN.", 0) \
     M(UInt64, parallel_replicas_mark_segment_size, 0, "Parts virtually divided into segments to be distributed between replicas for parallel reading. This setting controls the size of these segments. Not recommended to change until you're absolutely sure in what you're doing. Value should be in range [128; 16384]", 0) \
     M(Bool, allow_archive_path_syntax, true, "File/S3 engines/table function will parse paths with '::' as '<archive> :: <file>' if archive has correct extension", 0) \
-    M(Bool, parallel_replicas_local_plan, false, "Build local plan for local replica", 0) \
+    M(Bool, parallel_replicas_local_plan, true, "If true, use local plan for local replica in a query with parallel replicas, otherwise all replicas in a used cluster considered as remote", 0) \
     \
     M(Bool, allow_experimental_inverted_index, false, "If it is set to true, allow to use experimental inverted index.", 0) \
     M(Bool, allow_experimental_full_text_index, false, "If it is set to true, allow to use experimental full-text index.", 0) \

src/Core/SettingsChangesHistory.cpp

@@ -67,6 +67,7 @@ static std::initializer_list<std::pair<ClickHouseVersion, SettingsChangesHistory
     },
     {"24.10",
         {
+            {"parallel_replicas_local_plan", false, true, "Use local plan for local replica in a query with parallel replicas"},
         }
     },
     {"24.9",