SqlClient error when getting IsSqlDw property from a Fabric DW

Repro:

using Microsoft.Data.SqlClient;
using Microsoft.SqlServer.Management.Common;
using Microsoft.SqlServer.Management.Smo;

var sqlConnection = new SqlConnection("<Fabric_DW_connection_string>");
sqlConnection.Open();

ServerConnection serverConnection = new ServerConnection(sqlConnection);
Server server = new Server(serverConnection);
Database db = new Database(server, "testDwName");
db.Refresh();

Console.WriteLine(db.IsSqlDw);

The last line fails with this error:

Unhandled exception. Microsoft.SqlServer.Management.Common.ExecutionFailureException: An exception occurred while executing a Transact-SQL statement or batch.
 ---> Microsoft.Data.SqlClient.SqlException (0x80131904): Warning: Fatal error 615 occurred at May 31 2024  7:23PM. Note the error and time, and contact your system administrator.
   at Microsoft.SqlServer.Management.Common.ConnectionManager.ExecuteTSql(ExecuteTSqlAction action, Object execObject, DataSet fillDataSet, Boolean catchException)
   at Microsoft.SqlServer.Management.Common.ServerConnection.GetExecuteReader(SqlCommand command)
ClientConnectionId: ********
Error Number:21,State:1,Class:21
ClientConnectionId before routing: ********
Routing Destination: ********
   --- End of inner exception stack trace ---
   at Microsoft.SqlServer.Management.Common.ServerConnection.GetExecuteReader(SqlCommand command)
   at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteReader(String sqlCommand, SqlCommand& command)
   at Microsoft.SqlServer.Management.Smo.ExecuteSql.GetDataReader(String query, SqlCommand& command)
   at Microsoft.SqlServer.Management.Smo.DataProvider.SetConnectionAndQuery(ExecuteSql execSql, String query)
   at Microsoft.SqlServer.Management.Smo.ExecuteSql.GetDataProvider(StringCollection query, Object con, StatementBuilder sb, RetriveMode rm)
   at Microsoft.SqlServer.Management.Smo.ExecuteSql.GetDataProvider(StringCollection query, Object con, StatementBuilder sb, RetriveMode rm)
   at Microsoft.SqlServer.Management.Smo.ExecuteSql.ExecuteWithResults(StringCollection query, Object con, StatementBuilder sb)
   at Microsoft.SqlServer.Management.Smo.SqlObjectBase.FillData(ResultType resultType, StringCollection sql, Object connectionInfo, StatementBuilder sb)
   at Microsoft.SqlServer.Management.Smo.SqlObjectBase.FillDataWithUseFailure(SqlEnumResult sqlresult, ResultType resultType)
   at Microsoft.SqlServer.Management.Smo.SqlObjectBase.FillDataWithUseFailure(SqlEnumResult sqlresult, ResultType resultType)
   at Microsoft.SqlServer.Management.Smo.SqlObjectBase.BuildResult(EnumResult result)
   at Microsoft.SqlServer.Management.Smo.DatabaseLevel.GetData(EnumResult res)
   at Microsoft.SqlServer.Management.Sdk.Sfc.Environment.GetData()
   at Microsoft.SqlServer.Management.Sdk.Sfc.Environment.GetData(Request req, Object ci)
   at Microsoft.SqlServer.Management.Sdk.Sfc.Enumerator.GetData(Object connectionInfo, Request request)
   at Microsoft.SqlServer.Management.Smo.ExecutionManager.GetEnumeratorDataReader(Request req)
   at Microsoft.SqlServer.Management.Smo.SqlSmoObject.GetInitDataReader(String[] fields, OrderBy[] orderby)
   at Microsoft.SqlServer.Management.Smo.SqlSmoObject.ImplInitialize(String[] fields, OrderBy[] orderby)
   at Microsoft.SqlServer.Management.Smo.SqlSmoObject.Initialize(Boolean allProperties)
   at Microsoft.SqlServer.Management.Smo.SqlSmoObject.OnPropertyMissing(String propname, Boolean useDefaultValue)
   at Microsoft.SqlServer.Management.Smo.PropertyCollection.RetrieveProperty(Int32 index, Boolean useDefaultOnMissingValue)
   at Microsoft.SqlServer.Management.Smo.PropertyCollection.GetValueWithNullReplacement(String propertyName, Boolean throwOnNullValue, Boolean useDefaultOnMissingValue)
   at Microsoft.SqlServer.Management.Smo.PropertyCollection.GetValueWithNullReplacement(String propertyName)
   at Microsoft.SqlServer.Management.Smo.Database.get_IsSqlDw()

从 Database.IsSqlDw 开始，按照堆栈跟踪中显示的初始化和查询路径进行跟踪，尤其关注 DatabaseLevel.GetData 和 SqlSmoObject 初始化。在 Fabric DW 上重现属性访问，并确定生成的查询为何会导致所报告的 SQL 错误；完成的标准是读取 db.IsSqlDw 时不会引发异常。