Use l-buckets in statistics ut for forced compaction (#18960)

Author: zverevgeny

ydb/core/statistics/ut_common/ut_common.cpp

@@ -289,6 +289,11 @@ void CreateColumnStoreTable(TTestEnv& env, const TString& databaseName, const TS
     )", fullTableName.c_str()));
     runtime.SimulateSleep(TDuration::Seconds(1));
 
+    ExecuteYqlScript(env, Sprintf(R"(
+        ALTER OBJECT `%s` (TYPE TABLE) SET (ACTION=UPSERT_OPTIONS, `COMPACTION_PLANNER.CLASS_NAME`=`l-buckets`);
+    )", fullTableName.c_str()));
+    runtime.SimulateSleep(TDuration::Seconds(1));
+
     ExecuteYqlScript(env, Sprintf(R"(
         ALTER OBJECT `%s` (TYPE TABLE) SET (ACTION=UPSERT_INDEX, NAME=cms_value, TYPE=COUNT_MIN_SKETCH,
                     FEATURES=`{"column_names" : ['Value']}`);