javascript - What's the most efficient way to combine dates? -


records in database this:

from: 2012-01-16 06:20:00   to: 2012-01-16 06:30:00 from: 2012-01-16 06:30:00   to: 2012-01-16 06:40:00 from: 2012-01-16 06:40:00   to: 2012-01-16 06:50:00

and inside application have combine them 1 record looking this:

from: 2012-01-16 06:20:00   to: 2012-01-16 06:50:00

sometimes records not in order. might that:

from: 2012-01-16 06:20:00   to: 2012-01-16 06:30:00 from: 2012-01-16 06:40:00   to: 2012-01-16 06:50:00 from: 2012-01-16 06:30:00   to: 2012-01-16 06:40:00

if timestamp may use min(from) , max(to).


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