I have a input file that contains a start time for a booking and a duration (xx minutes where xx is numeric). I want to work out the end time for the booking based on these 2 parameters which is easy by using addDate.
However, the duration sometimes contains -1 which signifies a the booking runs until closing time for a restaurant.
I have a list of closing times for the venue by day of the week which are sometimes different and so instead of the addDate, where duration is -1 I then want to pull in the closing time and join that to the booking start time before converting to a date. Again quite easy...
However, I'd ideally like to be able to read lookup table containing a list of all closing times held in one column either as an array or a JSON string, then depending on the day of the week which I can work out, set the correct closing time for the venue.
I'm currently doing a straight lookup to a table containing the closing times but have set one per venue. Clearly a challenge but hopefully someone has a solution....
One of the way , assuming your lookup array is like
Mon,17:30
Tue,18:30
.
.
Sun 23:00
Input — tjavarow( add another col with day of week of reservation datelike mon,tue ..it can be done by format date function EEE expression) — tmap (with lookup of closing time, inner join) — output ( if duration is -1 , read add lookup closing time otherwise duration to reservation date )
