-- timestamp to unix timestamp

select now(), EXTRACT(EPOCH FROM TIMESTAMP WITH TIME ZONE ‘now()‘)::int as ext, extract(epoch FROM now())::int, CURRENT_TIMESTAMP,date_part(‘epoch‘,CURRENT_TIMESTAMP)::int

-- unix timestamp to timestamp

SELECT TIMESTAMP WITH TIME ZONE ‘epoch‘ + 982384720.12 * INTERVAL ‘1 second‘;

--SELECT TIMESTAMP WITH TIME ZONE ‘epoch‘ + extract(epoch FROM now())* INTERVAL ‘1 second‘;

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postgresql获取Unix时间戳