Re: ERROR: invalid memory alloc request size 0

"John Hagstrand" <john(dot)hagstrand(at)interageresearch(dot)com> writes:
> I'm getting the following error when I try to update or insert into a table.
> This just started happening today. The table has been working fine up to
> now. The table has 27,000 rows and 24 columns.

> ERROR: invalid memory alloc request size 0

What PG version is this, and what exactly is the table schema (and how
did you change it recently)? And let's see an exact example of a
failing query. It'd be even nicer if you could get a stack trace from
the errfinish call.

The only recent bugs of this ilk that I can recall had to do with
operations on zero-column tables. Probably you've found some new
corner case, but there's not enough info here to guess what.

regards, tom lane