Meaning of numbers in log

[Ognjen Blagojevic]

Hi all,

I tried to find this in docs, but no success. What is the meaning of the 
numbers in the log file?

5156  myPu  TRACE  [http-8888-2] openjpa.jdbc.SQL -
~~~~     <t 26991461, conn 23127958> executing prepstmnt 12911969
            ~~~~~~~~       ~~~~~~~~                      ~~~~~~~~

I beleive all four are some kind of timings, but what?


Regards,
Ognjen