channels count fix for standalone table (#12410)

Author: alexd65536

ydb/core/statistics/service/ut/ut_http_request.cpp

@@ -38,6 +38,18 @@ void ProbeTest(bool isServerless) {
     TString columnName = "Value";
     const auto sender = runtime.AllocateEdgeActor();
 
+    bool firstStatsToSA = false;
+    auto statsObserver1 = runtime.AddObserver<TEvStatistics::TEvSchemeShardStats>([&](auto& ev){
+        firstStatsToSA = true;
+    });
+    runtime.WaitFor("TEvSchemeShardStats 1", [&]{ return firstStatsToSA; });
+
+    bool secondStatsToSA = false;
+    auto statsObserver2 = runtime.AddObserver<TEvStatistics::TEvSchemeShardStats>([&](auto& ev){
+        secondStatsToSA = true;
+    });
+    runtime.WaitFor("TEvSchemeShardStats 2", [&]{ return secondStatsToSA; });
+
     const auto operationId = TULIDGenerator().Next(TInstant::Now()).ToBinary();
     auto analyzeRequest = MakeAnalyzeRequest({{tableInfo.PathId, {1, 2}}}, operationId);
     runtime.SendToPipe(tableInfo.SaTabletId, sender, analyzeRequest.release());
@@ -96,4 +108,4 @@ Y_UNIT_TEST_SUITE(HttpRequest) {
 }
 
 } // NStat
-} // NKikimr
+} // NKikimr

ydb/core/tx/schemeshard/olap/operations/create_table.cpp

@@ -785,8 +785,8 @@ class TCreateColumnTable: public TSubOperation {
             olapStorePath.Base()->LastTxId = opTxId;
             context.SS->PersistLastTxId(db, olapStorePath.Base());
         } else {
-            NKikimrSchemeOp::TColumnStorageConfig storageConfig; // default
-            storageConfig.SetDataChannelCount(1);
+            tableInfo->StandaloneSharding = NKikimrSchemeOp::TColumnStoreSharding();
+            const NKikimrSchemeOp::TColumnStorageConfig& storageConfig = tableInfo->Description.GetStorageConfig();
 
             TChannelsBindings channelsBindings;
             if (!context.SS->GetOlapChannelsBindings(dstPath.GetPathIdForDomain(), storageConfig, channelsBindings, errStr)) {
@@ -800,7 +800,6 @@ class TCreateColumnTable: public TSubOperation {
             TShardInfo columnShardInfo = TShardInfo::ColumnShardInfo(opTxId, pathId);
             columnShardInfo.BindedChannels = channelsBindings;
 
-            tableInfo->StandaloneSharding = NKikimrSchemeOp::TColumnStoreSharding();
             Y_ABORT_UNLESS(tableInfo->GetOwnedColumnShardsVerified().empty());
 
             for (ui64 i = 0; i < shardsCount; ++i) {