[SQL] calculating interval

[praveen vejandla]

Dear All,

Is there any way in postgresql to calculate the interval between two times excluding specific days,specific duration.

Ex:
timestamp1 : 2002-10-01 10:30AM
timestamp2 : 2002-15-01 04:50PM

suppose if i need the difference between timestamp1,timestamp2 but i don't want to count how many sun days are coming, i want to ignore all sundays in between,i want to ignore certain timings(say 10.00 AM to 5:00PM)s also,then how can I get the duration in this way.

Thanks and Regards,
Praveen

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