public void ExecuteQuery()
{
var source = GetExecuteSourceQuery();
Table destination;
switch (Query.ExecutionMode)
{
case ExecutionMode.SingleServer:
// In single-server mode results are directly written into destination table
destination = Query.Destination.GetTable();
break;
case ExecutionMode.Graywulf:
// In graywulf mode results are written into a temporary table first
destination = GetOutputTable();
TemporaryTables.TryAdd(destination.TableName, destination);
// Drop destination table, in case it already exists for some reason
destination.Drop();
break;
default:
throw new NotImplementedException();
}
ExecuteSelectInto(source, destination, Query.QueryTimeout);
}
/// <summary>
/// Copies a table from a remote data source by creating and
/// executing a table copy task.
/// </summary>
/// <param name="table"></param>
/// <param name="source"></param>
public void CopyRemoteTable(TableReference table, SourceTableQuery source)
{
// Create a target table name
var temptable = GetTemporaryTable(GetEscapedUniqueName(table));
TemporaryTables.TryAdd(table.UniqueName, temptable);
var dest = new DestinationTable(temptable)
{
Options = TableInitializationOptions.Drop | TableInitializationOptions.Create
};
var tc = CreateTableCopyTask(source, dest, false);
var guid = Guid.NewGuid();
RegisterCancelable(guid, tc);
tc.Execute();
UnregisterCancelable(guid);
}
