Re: Out of Memory

Enrico Bianchi <enrico.bianchi@ymail.com> writes:
> When I launch a query (the principal field is JSONb), the database
> return this:
> ERROR:  out of memory
> DETAIL:  Failed on request of size 110558.

That error should be associated with a memory usage map getting dumped to
postmaster stderr, where hopefully your logging setup will catch it.
Can we see the map?

Even better would be a self-contained test case.  Maybe you can generate
some artificial data that produces the problem?

            regards, tom lane