I'm hoping that I can learn a bit about MongoDB from trying to help you. Is the update happening within the @cols foreach loop? How are you getting $col? $col = $db->$cols;?

Based on your @new foreach print, it looks like you are storing multiple timestamps in each record. Is that what you intended? If so, it seems odd to me to store timestamps in a column named timestamp. :)

In reply to Re^7: MongoDB replacing an array by Mr. Muskrat
in thread MongoDB replacing an array by neilwatson

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