Github user hequn8128 commented on a diff in the pull request:
https://github.com/apache/flink/pull/6282#discussion_r204230534
--- Diff: docs/dev/table/tableApi.md ---
@@ -4490,6 +4490,16 @@ dateFormat(TIMESTAMP, STRING)
</td>
</tr>
+ <tr>
+ <td>
+ {% highlight text %}
+timestampDiff(unit, timestamp1, timestamp2)
--- End diff --
timestampDiff(unit, timestamp1, timestamp2) =>
timestampDiff(TimeIntervalUnit, datetime1, datetime2)
TIMESTAMP is different from DATETIME. The supported range of DATETIME is
'1000-01-01 00:00:00' to '9999-12-31 23:59:59', while TIMESTAMP has a range of
'1970-01-01 00:00:01' UTC to '2038-01-19 03:14:07' UTC
---
