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[DOCS] IMPALA-6105 unix_timestamp returns a number of seconds

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Added a note that the unix_timestamp function returns a number of
seconds.

Change-Id: Ie502322368c0052d4767191cf8f7ecb7ac5e7a16
Reviewed-on: http://gerrit.cloudera.org:8080/9084
Reviewed-by: John Russell <jrussell@cloudera.com>
Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com>
Tested-by: Impala Public Jenkins
This commit is contained in:
Alex Rodoni
2018-01-19 15:20:57 -08:00
committed by Impala Public Jenkins
parent 1890230246
commit f68aa87efd
1 changed files with 6 additions and 3 deletions
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9
docs/topics/impala_datetime_functions.xml
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@@ -2526,9 +2526,12 @@ select now() + interval 2 weeks as 2_weeks_from_now,
<dd>
<indexterm audience="hidden">unix_timestamp() function</indexterm>
<b>Purpose:</b> Returns an integer value representing the current date and time as a delta from the Unix
epoch, or converts from a specified date and time value represented as a <codeph>TIMESTAMP</codeph> or
<codeph>STRING</codeph>.
<b>Purpose:</b> Returns a Unix time, which is a number of seconds
elapsed since '1970-01-01 00:00:00' UTC. If called with no
argument, the current date and time is converted to its Unix time. If
called with arguments, the first argument represented as the
<codeph>TIMESTAMP</codeph> or <codeph>STRING</codeph> is converted to
its Unix time.
<p>
<b>Return type:</b> <codeph rev="2.2.0">bigint</codeph>
</p>