Submitted by: @pcisar

I have a method parameter 'time' of type nullable<TimeSpan>. When I
use it with Firebird 2.1.2, everything is ok, with Firebird embedded I
get InvalidCastException.

This is part of my SQL command:

if (time.HasValue)
sqlText.AppendLine(" AND time_from_t19 <= @time and time_to_t19 >= @time");
(...)
if (time.HasValue)
command.Parameters.AddWithValue("time", time.Value);

Exception:

Type: InvalidCastException
Message: Unable to cast object of type 'System.TimeSpan' to type
'System.Byte[]'.
Source: XXXXXXXX.DBLayer
Target site: FirebirdSql.Data.FirebirdClient.FbDataReader
ExecuteReader(FirebirdSql.Data.FirebirdClient.FbCommand)

When I use this instead, everything is ok:

if (time.HasValue)
sqlText.AppendLine(" AND time_from_t19 <= '" +
time.Value.ToString() + "' and time_to_t19 >= '" +
time.Value.ToString() + "'");

Commits: 09e77a3