We had stored one date field in ISO format (2019-06-25) but now want to convert it into Millisecond format (1561420800000), we don't have hour, min & sec information stored in the date field. We can take default (2019-06-25 00:00:00) to convert it into millisecond format. Can you guys help us here to write a script which can convert all the data we have in our cluster in Millisecond format.
Stored Date field: 2019-06-25
Desired Date Field: 1561420800000
Thanks in advanced.