Can I use current Timestamp as UUID in PostgreSQL 8.2

Question

I know that PostgreSQL 9+ has module to generate UUID. But after a lot of search I couldn't find any solution to generate UUID in PostgreSQL 8.2. I also need to keep this version because lot of my customers are still using 8.2. I am thinking to use current Timestamp as UUID.

Running select extract(epoch from now()); query and getting a Timestamp like 1384396600.53923. I want to store it as character and use as UUID. Is there any possibility of generating duplicate Timestamp? Also will it be feasible to use Timestamp as UUID?

Answer 1

i am not sure it is feasible. but i suggest you not to use the Timestamp as UUID.

i don't konw how large concurrent your condition is. if you are in a very much large concurrent condition,or in a very extreme condition by chance,i think it must will be give you two same Timestamp,so there will be something wrong,right?

so,use some other way to make a "UUID".