pf@pfortin.com writes:
> As a test, rather than use INSERT, I recently wrote a python test script
> to import some 8M & 33M record files with COPY instead. These worked with
> last weekend's data dump. Next, I wanted to look into importing a subset
> of columns using the below logic; but I'm getting "ERROR: cache lookup
> failed for function 0". Re-running the same full imports that worked
> Saturday, I now get the same error.
> Could something in the DB cause this "function" error?
"cache lookup failed" certainly smells like a server internal error,
but we'd have heard about it if the trivial case you show could reach
such a problem. I'm thinking there's things you haven't told us.
What extensions do you have installed? Maybe an event trigger?
Also, the reference to ENCODING 'ISO-8859-1' makes me wonder what
encoding conversion is being performed.
regards, tom lane