Convert epoch to timestamp in HSQLDB on insert statement

Question

In the docs, I found the function TIMESTAMPADD.

I'm trying to to this:

insert into status(identifier, firstoccurrence) values('foo', 
    timestampadd(SQL_TSI_SECOND, 1389995576, TIMESTAMP '1970-01-01 00:00:00'));

But I got this error:

data exception: interval field overflow / Error Code: -3435 / State: 22015

It seems like there is a problem with the epoch value 1389995576.

The problem is I can't use a bigger time unit, such as day or month, to then divide this constant value because theese are pricise data.

Are there any other ways of doing this?

Answer 1

Try the direct conversion function:

insert into status(identifier, firstoccurrence) values('foo', 
    timestamp(1389995576));

The TIMESTAMPADD function will be extended in future versions to accept large values