[Feauture](Export) support parallel export job using Job Schedule (#22854)

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

@@ -2102,6 +2102,11 @@ public class Config extends ConfigBase {
             "The maximum parallelism allowed by Export job"})
     public static int maximum_parallelism_of_export_job = 50;
 
+    @ConfField(mutable = true, description = {
+            "ExportExecutorTask任务中一个OutFile语句允许的最大tablets数量",
+            "The maximum number of tablets allowed by an OutfileStatement in an ExportExecutorTask"})
+    public static int maximum_tablets_of_outfile_in_export = 10;
+
     @ConfField(mutable = true, description = {
             "是否用 mysql 的 bigint 类型来返回 Doris 的 largeint 类型",
             "Whether to use mysql's bigint type to return Doris's largeint type"})