> before this manipulmation, pg_log = 1.073.741.824
Ohhhh, your system reached max transaction ID -:(
> and xmin = 4982339
And now all tuples with xmin > ~5000000 are invisible.
One way to restore data could be hack vacuum to update
xmin of all valid tuples to 512, vacuum all tables,
dump data, initdb new fresh database etc -:((
Vadim