On 2013-03-26, Tom Lane <tgl@xxxxxxxxxxxxx> wrote:
> The manual says that 'escape' encoding "merely outputs null bytes as
> \000 and doubles backslashes".
> (Having said that, I wonder though if "escape" doesn't need more
> thought. The output is only valid text in SQL_ASCII or single-byte
> encodings, otherwise there's risk of encoding violations.)
it does that too, since as long as I can remember.
I used decode-hex here so it'll work on older version of pg.
select encode(decode('ee5c2700aa','hex'),'escape');
encode
--------------------
\356\\'\000\252
to see the slashes doubled you need to run it through quote-literal
select quote_literal(encode(decode('ee5c2700aa','hex'),'escape'));
quote_literal
--------------------------
E'\\356\\\\''\\000\\252'
--
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