[feature](shuffle) enable strict consistency dml by default (#32958) (#34641)

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -636,6 +636,12 @@ public class Config extends ConfigBase {
             varType = VariableAnnotation.EXPERIMENTAL)
     public static boolean enable_single_replica_load = false;
 
+    @ConfField(mutable = true, masterOnly = true, description = {
+            "对于 tablet 数量小于该数目的 DUPLICATE KEY 表，将不会启用 shuffle",
+            "Shuffle won't be enabled for DUPLICATE KEY tables if its tablet num is lower than this number"},
+            varType = VariableAnnotation.EXPERIMENTAL)
+    public static int min_tablets_for_dup_table_shuffle = 64;
+
     @ConfField(mutable = true, masterOnly = true, description = {
             "单个数据库最大并发运行的事务数，包括 prepare 和 commit 事务。",
             "Maximum concurrent running txn num including prepare, commit txns under a single db.",