When analysing the code thanks to Pyflame it cames that the 'prefetch_fields()'
function was runing most of the time. In order to improve the global performance,
I change the context of the move_lines : 'prefetch_fields = False'. It permit to reduce the
time of computation of the prefetch_fields and to avoid the MemoryError.
N.B.: The database of the customer (on saas) contains 1.3 millions of entry and to reproduce the issue
I have to set the HardMemlimit to 0.9 Go and the SoftMemLimit to 0.5Go.
OPW-1910422
closesodoo/odoo#29231
Nathan de Pryck
7386292bce