public override IEnumerable <T> ExecuteQuery <T>(List <SqlStatement> statements, List <KeyValuePair <string, object> > constants)
{
using (var selectCommand = Connection.CreateCommand())
{
var sql = GetSql(statements);
selectCommand.CommandText = sql;
foreach (var parameter in constants)
{
selectCommand.Parameters.AddWithValue(parameter.Key, parameter.Value);
}
IDataReader reader;
try
{
reader = selectCommand.ExecuteReader();
}
catch (Exception e)
{
throw new InvalidOperationException(sql, e);
}
try
{
foreach (var record in Materializer.ReadTypedReader <T>(reader, LastSelectMembers))
{
yield return(record);
}
}
finally
{
reader.Dispose();
}
}
}