Peter Eisentraut <> writes:
> An empty token produces "<>", so just debackslashing wouldn't work.

pg_strtok recognizes "<>" and returns length = 0, so debackslash()
would produce the right answer AFAICS (admittedly, I haven't tested).
But I don't really want to do it like that because of the wasted
palloc space and cycles.

> Maybe
> local_node->fldname = length ? token[0] : '\0';
> ?

Doesn't cope with backslash-quoted characters.  If we're going to bother
to do anything here, I think we ought to make it reversible for all
possible characters.

                        regards, tom lane

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