Converts the time values in the timestamp column into string using the selected or entered conversion pattern as defined by SimpleDateFormat . Examples:
- "yyyy.MM.dd HH:mm:ss.SSS" parses dates like "2001.07.04 12:08:56.000"
- "yyyy-MM-dd'T'HH:mm:ss.SSSZ" parses dates like "2001-07-04T12:08:56.235-0700"
- G: era designator
- y: year
- M: month in year
- w: Week in year
- W: week in month
- D: Day in year
- d: day in month
- F: Day of week in month
- E: day in week
- a: Am/pm marker
- H: hour in day (0-23)
- k: hour in day (1-24)
- K: hour in am/pm (0-11)
- h: hour in am/pm (1-12)
- m: minute in hour
- s: Second in minute
- S: millisecond
- z: Timezone (General time zone)
- Z: RFC 822 time zone