negative values for vacuum threshold check !!!

[Joao Ferreira gmail <joao.miguel.c.ferreira@xxxxxxxxx>]

Hello all

While debugging my autovacuum I increased the level of logging to
"debug3" and got this:


# cat /var/pgsql/data/logfile | grep vac | egrep "mydb|mytable"

LOG:  autovacuum: processing database "mydb"
DEBUG:  mytbl: vac: 10409 (threshold 200000), anl: -183366 (threshold
50000)
LOG:  autovacuum: processing database "mydb"
DEBUG:  mytbl: vac: 10966 (threshold 200000), anl: -182489 (threshold
50000)
LOG:  autovacuum: processing database "mydb"
DEBUG:  mytbl: vac: 11545 (threshold 200000), anl: -181592 (threshold
50000)


Should I be worried with the negative values in 'anl' ?

thx
joao