Syntax:
dbo.fn_BetDateTime(id_trade, bet_num, property)

Output:
(datetime) Returns timestamp properties of a bet.

Input parameters:

id_trade (integer)	Id of the trade
bet_num (integer)	bet ordinal position into the trade
property (string)	Can return one of the following timestamps: 'place' = timestamp when the bet was placed 'match' = timestamp when the bet was matched