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27.4.5.6 The format_time() Function

Given a Performance Schema latency or wait time in picoseconds, converts it to human-readable format and returns a string consisting of a value and a units indicator. Depending on the size of the value, the units part is ns (nanoseconds), us (microseconds), ms (milliseconds), s (seconds), m (minutes), h (hours), d (days), or w (weeks).

Parameters
  • picoseconds TEXT: The picoseconds value to format.

Return Value

A TEXT value.

Example
mysql> SELECT sys.format_time(3501), sys.format_time(188732396662000);
+-----------------------+----------------------------------+
| sys.format_time(3501) | sys.format_time(188732396662000) |
+-----------------------+----------------------------------+
| 3.50 ns               | 3.15 m                           |
+-----------------------+----------------------------------+

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