On 09/25/2016 08:39 AM, Tom Lane wrote:
> Charles Clavadetscher <clavadetsc...@swisspug.org> writes:
>> Honestly I still don't understand why this happened this way.
>
> I wonder if you have standard_conforming_strings turned off, or
> did when that data was inserted. That would change the behavior
> of backslashes in string literals.
That got me to thinking:
standard_conforming_strings = on
test=# create table test (txt text);
CREATE TABLE
test=# insert into test values
('BEGIN:VCARD\r\\rVERSION:3.0\r\\rN:Halbritter;Ursula;;;\r\\rFN:Ursula
Halbritter\r\\rEMAIL;TYPE=INTERNET;TYPE=HOME:ursula.halbrit...@zweiernet.ch\r\\rADR;TYPE=home:;;strasse;schwerzenbach;;;ooooooooooooooooooooooooooo\r\\rEND:VCARD');
INSERT 0 1
test=# insert into test values
(E'BEGIN:VCARD\r\\rVERSION:3.0\r\\rN:Halbritter;Ursula;;;\r\\rFN:Ursula
Halbritter\r\\rEMAIL;TYPE=INTERNET;TYPE=HOME:ursula.halbrit...@zweiernet.ch\r\\rADR;TYPE=home:;;strasse;schwerzenbach;;;ooooooooooooooooooooooooooo\r\\rEND:VCARD');
INSERT 0 1
test=# \copy test to test.txt
COPY 2
cat test.txt
BEGIN:VCARD\\r\\\\rVERSION:3.0\\r\\\\rN:Halbritter;Ursula;;;\\r\\\\rFN:Ursula
Halbritter\\r\\\\rEMAIL;TYPE=INTERNET;TYPE=HOME:ursula.halbrit...@zweiernet.ch\\r\\\\rADR;TYPE=home:;;strasse;schwerzenbach;;;ooooooooooooooooooooooooooo\\r\\\\rEND:VCARD
BEGIN:VCARD\r\\rVERSION:3.0\r\\rN:Halbritter;Ursula;;;\r\\rFN:Ursula
Halbritter\r\\rEMAIL;TYPE=INTERNET;TYPE=HOME:ursula.halbrit...@zweiernet.ch\r\\rADR;TYPE=home:;;strasse;schwerzenbach;;;ooooooooooooooooooooooooooo\r\\rEND:VCARD
standard_conforming_strings = off
test=# truncate test;
TRUNCATE TABLE
test=# insert into test values
('BEGIN:VCARD\r\\rVERSION:3.0\r\\rN:Halbritter;Ursula;;;\r\\rFN:Ursula
Halbritter\r\\rEMAIL;TYPE=INTERNET;TYPE=HOME:ursula.halbrit...@zweiernet.ch\r\\rADR;TYPE=home:;;strasse;schwerzenbach;;;ooooooooooooooooooooooooooo\r\\rEND:VCARD');
WARNING: nonstandard use of escape in a string literal
LINE 1: insert into test values ('BEGIN:VCARD\r\\rVERSION:3.0\r\\rN:...
^
HINT: Use the escape string syntax for escapes, e.g., E'\r\n'.
INSERT 0 1
test=# insert into test values
(E'BEGIN:VCARD\r\\rVERSION:3.0\r\\rN:Halbritter;Ursula;;;\r\\rFN:Ursula
Halbritter\r\\rEMAIL;TYPE=INTERNET;TYPE=HOME:ursula.halbrit...@zweiernet.ch\r\\rADR;TYPE=home:;;strasse;schwerzenbach;;;ooooooooooooooooooooooooooo\r\\rEND:VCARD');
INSERT 0 1
test=# \copy test to test_off.txt
COPY 2
cat test_off.txt
BEGIN:VCARD\r\\rVERSION:3.0\r\\rN:Halbritter;Ursula;;;\r\\rFN:Ursula
Halbritter\r\\rEMAIL;TYPE=INTERNET;TYPE=HOME:ursula.halbrit...@zweiernet.ch\r\\rADR;TYPE=home:;;strasse;schwerzenbach;;;ooooooooooooooooooooooooooo\r\\rEND:VCARD
BEGIN:VCARD\r\\rVERSION:3.0\r\\rN:Halbritter;Ursula;;;\r\\rFN:Ursula
Halbritter\r\\rEMAIL;TYPE=INTERNET;TYPE=HOME:ursula.halbrit...@zweiernet.ch\r\\rADR;TYPE=home:;;strasse;schwerzenbach;;;ooooooooooooooooooooooooooo\r\\rEND:VCARD
>
> regards, tom lane
>
>
--
Adrian Klaver
adrian.kla...@aklaver.com
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