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Comments - Converting unix timestamp stored as bigint to readable date time

8 years, 6 months ago Thanmaya Bekkalale
Re: Converting unix timestamp stored as bigint to readable date time

Thank you for the revert.

Here is my query:

select company_type,modified_time from companies;

and it returns

+--------------+---------------+
| company_type | modified_time |
+--------------+---------------+
| MANUFACTURER | 1444274942372 |
+--------------+---------------+

modified_time is a bigint(20) datatype.

The same query when I use:

select company_type,from_unixtime(modified_time) from companies;

for the same column it returns a NULL

+--------------+------------------------------+
| company_type | from_unixtime(modified_time) |
+--------------+------------------------------+
| MANUFACTURER | NULL                         |
+--------------+------------------------------+

other info: Server version: 5.5.44-MariaDB MariaDB Server

thank you in advance for the help!

 
8 years, 6 months ago Ian Gilfillan
Re: Converting unix timestamp stored as bigint to readable date time [Answer]

Assuming you meant to store a timestamp equivalent to 04/02/47737, this is due to the Unix timestamp limit. See https://en.wikipedia.org/wiki/Year_2038_problem

Currently this is not scheduled to be fixed in MariaDB - see https://mariadb.atlassian.net/browse/MDEV-341

 
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