"Zeugswetter Andreas SB SD" <ZeugswetterA@spardat.at> writes:
> I think actually the backend parser has no business changing
> constants, he is imho only allowed to parse it, so he knows
> where a constant begins, and where it ends.
How do you propose to handle embedded quote marks in literals,
if there is no parser-level escape convention?
Don't suggest a type-specific escape convention; at the time the
parser runs, it's impossible to know what type the literal will
turn out to be.
regards, tom lane