resolve conflict

Author: LiamHamsters

src/Ydb.Sdk/src/Ado/YdbCommand.cs

@@ -217,9 +217,31 @@ protected override async Task<DbDataReader> ExecuteDbDataReaderAsync(CommandBeha
             throw new InvalidOperationException("Transaction mismatched! (Maybe using another connection)");
         }
 
-        var ydbDataReader = await YdbDataReader.CreateYdbDataReader(await YdbConnection.Session.ExecuteQuery(
-            preparedSql.ToString(), ydbParameters, execSettings, transaction?.TransactionControl
-        ), YdbConnection.OnNotSuccessStatusCode, transaction, cancellationToken);
+        var useImplicit = YdbConnection.EnableImplicitSession && transaction is null;
+        var session = YdbConnection.GetExecutionSession(useImplicit);
+
+        YdbDataReader ydbDataReader;
+        try
+        {
+            var execResult = await session.ExecuteQuery(
+                preparedSql.ToString(),
+                ydbParameters,
+                execSettings,
+                transaction?.TransactionControl
+            );
+
+            ydbDataReader = await YdbDataReader.CreateYdbDataReader(
+                execResult,
+                YdbConnection.OnNotSuccessStatusCode,
+                transaction,
+                cancellationToken
+            );
+        }
+        finally
+        {
+            if (useImplicit)
+                session.Close();
+        }
 
         YdbConnection.LastReader = ydbDataReader;
         YdbConnection.LastCommand = CommandText;