How to convert unix_timestamp interger in psql?

Question

How to convert a unix_timestamp integer to time in readable text.
Such as:

timestamp|integer|not null default 0

select timestamp from table limit 1; 
1541001600  

1541001600 should be converted to Thu Nov 1 00:00:00 CST 2018

PostgreSQL 8.0.2

Answer 1

You can use to_timestamp() in postgresql.

select to_timestamp(1541001600) AT TIME ZONE 'CST';

Refer Link for more details

For 8.0:

SELECT TIMESTAMP WITH TIME ZONE 'epoch' + 1541001600 * INTERVAL '1 second';

Answer 2

You should really upgrade your Postgres! But I think this will work:

select '1970-01-01'::timestamp + 1541001600 * interval '1 second'