Peter Eisentraut writes:
> Fix write/read of empty string fields in Nodes.
This really should've included a catversion bump, I think.
Maybe there are no cases where this affects a Node type
we can store today, but I'm unconvinced of that.
regards, tom lane
Fix write/read of empty string fields in Nodes.
Historically, outToken has represented both NULL and empty-string
strings as "<>", which readfuncs.c then read as NULL, thus failing
to preserve empty-string fields accurately. Remarkably, this has
not caused any serious problems yet, but let's fix
