EnableImmediateWritingOnBulkUpsert by default (#12272) (#14090)

Author: zverevgeny

ydb/core/kqp/ut/common/kqp_ut_common.cpp

@@ -122,7 +122,6 @@ TKikimrRunner::TKikimrRunner(const TKikimrSettings& settings) {
     appConfig.MutableColumnShardConfig()->SetDisabledOnSchemeShard(false);
     ServerSettings->SetAppConfig(appConfig);
     ServerSettings->SetFeatureFlags(settings.FeatureFlags);
-    ServerSettings->FeatureFlags.SetEnableImmediateWritingOnBulkUpsert(true);
     ServerSettings->SetNodeCount(settings.NodeCount);
     ServerSettings->SetEnableKqpSpilling(enableSpilling);
     ServerSettings->SetEnableDataColumnForIndexTable(true);

ydb/core/protos/feature_flags.proto

@@ -157,7 +157,7 @@ message TFeatureFlags {
     optional bool EnableExternalDataSourcesOnServerless = 143 [default = true];
     optional bool EnableSparsedColumns = 144 [default = false];
     optional bool EnableParameterizedDecimal = 145 [default = false];
-    optional bool EnableImmediateWritingOnBulkUpsert = 146 [default = false];
+    optional bool EnableImmediateWritingOnBulkUpsert = 146 [default = true];
     optional bool EnableInsertWriteIdSpecialColumnCompatibility = 147 [default = false];
     optional bool EnableDriveSerialsDiscovery = 152 [default = false];
     optional bool EnableScaleRecommender = 157 [default = true];