I've compared Debug log between correct and wrong activity: Good activity: 2006-03-24 16:30:36 2632 Debug String written: select * from getvideodata(2::int4, 1::int4, '2006-03-24 16:30:31.400000'::timestamp, 1::int4) AS (idvideodate timestamp, mediabinary bytea). 2006-03-24 16:30:36 2632 Debug Entering NpgsqlState.ProcessBackendResponses() 2006-03-24 16:30:36 2632 Debug RowDescription message received from server. 2006-03-24 16:30:36 2632 Debug Entering NpgsqlRowDescription.ReadFromStream_Ver_3() 2006-03-24 16:30:36 2632 Debug Entering PGUtil.ReadString() 2006-03-24 16:30:36 2632 Debug String read: idvideodate. 2006-03-24 16:30:36 2632 Debug Entering PGUtil.ReadString() 2006-03-24 16:30:36 2632 Debug String read: mediabinary. 2006-03-24 16:30:36 2632 Debug DataRow message received from server. 2006-03-24 16:30:36 2632 Debug Entering NpgsqlAsciiRow.NpgsqlAsciiRow() 2006-03-24 16:30:36 2632 Debug Entering NpgsqlAsciiRow.ReadFromStream_Ver_3() 2006-03-24 16:30:36 2632 Debug Entering NpgsqlTypesHelper.ConvertBackendStringToSystemType() 2006-03-24 16:30:37 2632 Debug Entering NpgsqlTypesHelper.ConvertBackendStringToSystemType() 2006-03-24 16:30:38 2632 Debug Entering PGUtil.ReadString() 2006-03-24 16:30:38 2632 Debug String read: SELECT. 2006-03-24 16:30:38 2632 Debug CompletedResponse message from Server: SELECT. 2006-03-24 16:30:38 2632 Debug ReadyForQuery message received from server. 2006-03-24 16:30:38 2632 Debug Entering PGUtil.ReadString() 2006-03-24 16:30:38 2632 Debug String read: I. ... Wrong activity: 2006-03-24 16:30:38 2632 Debug String written: select * from getvideodata(2::int4, 1::int4, '2006-03-24 16:30:35.400000'::timestamp, 1::int4) AS (idvideodate timestamp, mediabinary bytea). 2006-03-24 16:30:38 2632 Debug Entering NpgsqlState.ProcessBackendResponses() 2006-03-24 16:30:38 2632 Debug RowDescription message received from server. 2006-03-24 16:30:38 2632 Debug Entering NpgsqlRowDescription.ReadFromStream_Ver_3() 2006-03-24 16:30:38 2632 Debug Entering PGUtil.ReadString() 2006-03-24 16:30:38 2632 Debug String read: idvideodate. 2006-03-24 16:30:38 2632 Debug Entering PGUtil.ReadString() 2006-03-24 16:30:38 2632 Debug String read: mediabinary. 2006-03-24 16:30:38 2632 Debug Entering PGUtil.ReadString() 2006-03-24 16:30:38 2632 Debug String read: SELECT. 2006-03-24 16:30:38 2632 Debug CompletedResponse message from Server: SELECT. 2006-03-24 16:30:38 2632 Debug ReadyForQuery message received from server. 2006-03-24 16:30:38 2632 Debug Entering PGUtil.ReadString() 2006-03-24 16:30:38 2632 Debug String read: I. 2006-03-24 16:30:38 2632 Debug Entering NpgsqlState.ChangeState() 2006-03-24 16:30:38 2632 Debug Entering NpgsqlCommand.UpdateOutputParameters() 2006-03-24 16:30:38 2632 Debug Get NpgsqlCommand.Connection 2006-03-24 16:30:48 2632 Debug Entering NpgsqlDataReader.Read() 2006-03-24 16:30:48 2632 Debug Entering NpgsqlDataReader.Dispose() 2006-03-24 16:30:48 2632 Debug Entering NpgsqlConnection.Close()
