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--
-- encoding-sensitive tests for json and jsonb
--
-- We provide expected-results files for UTF8 (json_encoding.out)
-- and for SQL_ASCII (json_encoding_1.out). Skip otherwise.
SELECT getdatabaseencoding() NOT IN ('UTF8', 'SQL_ASCII')
AS skip_test \gset
\if :skip_test
\quit
\endif
SELECT getdatabaseencoding(); -- just to label the results files
getdatabaseencoding
---------------------
SQL_ASCII
(1 row)
-- first json
-- basic unicode input
SELECT '"\u"'::json; -- ERROR, incomplete escape
ERROR: invalid input syntax for type json
LINE 1: SELECT '"\u"'::json;
^
DETAIL: "\u" must be followed by four hexadecimal digits.
CONTEXT: JSON data, line 1: "\u"
SELECT '"\u00"'::json; -- ERROR, incomplete escape
ERROR: invalid input syntax for type json
LINE 1: SELECT '"\u00"'::json;
^
DETAIL: "\u" must be followed by four hexadecimal digits.
CONTEXT: JSON data, line 1: "\u00"
SELECT '"\u000g"'::json; -- ERROR, g is not a hex digit
ERROR: invalid input syntax for type json
LINE 1: SELECT '"\u000g"'::json;
^
DETAIL: "\u" must be followed by four hexadecimal digits.
CONTEXT: JSON data, line 1: "\u000g...
SELECT '"\u0000"'::json; -- OK, legal escape
json
----------
"\u0000"
(1 row)
SELECT '"\uaBcD"'::json; -- OK, uppercase and lower case both OK
json
----------
"\uaBcD"
(1 row)
-- handling of unicode surrogate pairs
select json '{ "a": "\ud83d\ude04\ud83d\udc36" }' -> 'a' as correct_in_utf8;
ERROR: conversion between UTF8 and SQL_ASCII is not supported
select json '{ "a": "\ud83d\ud83d" }' -> 'a'; -- 2 high surrogates in a row
ERROR: invalid input syntax for type json
DETAIL: Unicode high surrogate must not follow a high surrogate.
CONTEXT: JSON data, line 1: { "a":...
select json '{ "a": "\ude04\ud83d" }' -> 'a'; -- surrogates in wrong order
ERROR: invalid input syntax for type json
DETAIL: Unicode low surrogate must follow a high surrogate.
CONTEXT: JSON data, line 1: { "a":...
select json '{ "a": "\ud83dX" }' -> 'a'; -- orphan high surrogate
ERROR: invalid input syntax for type json
DETAIL: Unicode low surrogate must follow a high surrogate.
CONTEXT: JSON data, line 1: { "a":...
select json '{ "a": "\ude04X" }' -> 'a'; -- orphan low surrogate
ERROR: invalid input syntax for type json
DETAIL: Unicode low surrogate must follow a high surrogate.
CONTEXT: JSON data, line 1: { "a":...
--handling of simple unicode escapes
select json '{ "a": "the Copyright \u00a9 sign" }' as correct_in_utf8;
correct_in_utf8
---------------------------------------
{ "a": "the Copyright \u00a9 sign" }
(1 row)
select json '{ "a": "dollar \u0024 character" }' as correct_everywhere;
correct_everywhere
-------------------------------------
{ "a": "dollar \u0024 character" }
(1 row)
select json '{ "a": "dollar \\u0024 character" }' as not_an_escape;
not_an_escape
--------------------------------------
{ "a": "dollar \\u0024 character" }
(1 row)
select json '{ "a": "null \u0000 escape" }' as not_unescaped;
not_unescaped
--------------------------------
{ "a": "null \u0000 escape" }
(1 row)
select json '{ "a": "null \\u0000 escape" }' as not_an_escape;
not_an_escape
---------------------------------
{ "a": "null \\u0000 escape" }
(1 row)
select json '{ "a": "the Copyright \u00a9 sign" }' ->> 'a' as correct_in_utf8;
ERROR: conversion between UTF8 and SQL_ASCII is not supported
select json '{ "a": "dollar \u0024 character" }' ->> 'a' as correct_everywhere;
correct_everywhere
--------------------
dollar $ character
(1 row)
select json '{ "a": "dollar \\u0024 character" }' ->> 'a' as not_an_escape;
not_an_escape
-------------------------
dollar \u0024 character
(1 row)
select json '{ "a": "null \u0000 escape" }' ->> 'a' as fails;
ERROR: unsupported Unicode escape sequence
DETAIL: \u0000 cannot be converted to text.
CONTEXT: JSON data, line 1: { "a":...
select json '{ "a": "null \\u0000 escape" }' ->> 'a' as not_an_escape;
not_an_escape
--------------------
null \u0000 escape
(1 row)
-- then jsonb
-- basic unicode input
SELECT '"\u"'::jsonb; -- ERROR, incomplete escape
ERROR: invalid input syntax for type json
LINE 1: SELECT '"\u"'::jsonb;
^
DETAIL: "\u" must be followed by four hexadecimal digits.
CONTEXT: JSON data, line 1: "\u"
SELECT '"\u00"'::jsonb; -- ERROR, incomplete escape
ERROR: invalid input syntax for type json
LINE 1: SELECT '"\u00"'::jsonb;
^
DETAIL: "\u" must be followed by four hexadecimal digits.
CONTEXT: JSON data, line 1: "\u00"
SELECT '"\u000g"'::jsonb; -- ERROR, g is not a hex digit
ERROR: invalid input syntax for type json
LINE 1: SELECT '"\u000g"'::jsonb;
^
DETAIL: "\u" must be followed by four hexadecimal digits.
CONTEXT: JSON data, line 1: "\u000g...
SELECT '"\u0045"'::jsonb; -- OK, legal escape
jsonb
-------
"E"
(1 row)
SELECT '"\u0000"'::jsonb; -- ERROR, we don't support U+0000
ERROR: unsupported Unicode escape sequence
LINE 1: SELECT '"\u0000"'::jsonb;
^
DETAIL: \u0000 cannot be converted to text.
CONTEXT: JSON data, line 1: ...
-- use octet_length here so we don't get an odd unicode char in the
-- output
SELECT octet_length('"\uaBcD"'::jsonb::text); -- OK, uppercase and lower case both OK
ERROR: conversion between UTF8 and SQL_ASCII is not supported
LINE 1: SELECT octet_length('"\uaBcD"'::jsonb::text);
^
-- handling of unicode surrogate pairs
SELECT octet_length((jsonb '{ "a": "\ud83d\ude04\ud83d\udc36" }' -> 'a')::text) AS correct_in_utf8;
ERROR: conversion between UTF8 and SQL_ASCII is not supported
LINE 1: SELECT octet_length((jsonb '{ "a": "\ud83d\ude04\ud83d\udc3...
^
SELECT jsonb '{ "a": "\ud83d\ud83d" }' -> 'a'; -- 2 high surrogates in a row
ERROR: invalid input syntax for type json
LINE 1: SELECT jsonb '{ "a": "\ud83d\ud83d" }' -> 'a';
^
DETAIL: Unicode high surrogate must not follow a high surrogate.
CONTEXT: JSON data, line 1: { "a":...
SELECT jsonb '{ "a": "\ude04\ud83d" }' -> 'a'; -- surrogates in wrong order
ERROR: invalid input syntax for type json
LINE 1: SELECT jsonb '{ "a": "\ude04\ud83d" }' -> 'a';
^
DETAIL: Unicode low surrogate must follow a high surrogate.
CONTEXT: JSON data, line 1: { "a":...
SELECT jsonb '{ "a": "\ud83dX" }' -> 'a'; -- orphan high surrogate
ERROR: invalid input syntax for type json
LINE 1: SELECT jsonb '{ "a": "\ud83dX" }' -> 'a';
^
DETAIL: Unicode low surrogate must follow a high surrogate.
CONTEXT: JSON data, line 1: { "a":...
SELECT jsonb '{ "a": "\ude04X" }' -> 'a'; -- orphan low surrogate
ERROR: invalid input syntax for type json
LINE 1: SELECT jsonb '{ "a": "\ude04X" }' -> 'a';
^
DETAIL: Unicode low surrogate must follow a high surrogate.
CONTEXT: JSON data, line 1: { "a":...
-- handling of simple unicode escapes
SELECT jsonb '{ "a": "the Copyright \u00a9 sign" }' as correct_in_utf8;
ERROR: conversion between UTF8 and SQL_ASCII is not supported
LINE 1: SELECT jsonb '{ "a": "the Copyright \u00a9 sign" }' as corr...
^
SELECT jsonb '{ "a": "dollar \u0024 character" }' as correct_everywhere;
correct_everywhere
-----------------------------
{"a": "dollar $ character"}
(1 row)
SELECT jsonb '{ "a": "dollar \\u0024 character" }' as not_an_escape;
not_an_escape
-----------------------------------
{"a": "dollar \\u0024 character"}
(1 row)
SELECT jsonb '{ "a": "null \u0000 escape" }' as fails;
ERROR: unsupported Unicode escape sequence
LINE 1: SELECT jsonb '{ "a": "null \u0000 escape" }' as fails;
^
DETAIL: \u0000 cannot be converted to text.
CONTEXT: JSON data, line 1: { "a":...
SELECT jsonb '{ "a": "null \\u0000 escape" }' as not_an_escape;
not_an_escape
------------------------------
{"a": "null \\u0000 escape"}
(1 row)
SELECT jsonb '{ "a": "the Copyright \u00a9 sign" }' ->> 'a' as correct_in_utf8;
ERROR: conversion between UTF8 and SQL_ASCII is not supported
LINE 1: SELECT jsonb '{ "a": "the Copyright \u00a9 sign" }' ->> 'a'...
^
SELECT jsonb '{ "a": "dollar \u0024 character" }' ->> 'a' as correct_everywhere;
correct_everywhere
--------------------
dollar $ character
(1 row)
SELECT jsonb '{ "a": "dollar \\u0024 character" }' ->> 'a' as not_an_escape;
not_an_escape
-------------------------
dollar \u0024 character
(1 row)
SELECT jsonb '{ "a": "null \u0000 escape" }' ->> 'a' as fails;
ERROR: unsupported Unicode escape sequence
LINE 1: SELECT jsonb '{ "a": "null \u0000 escape" }' ->> 'a' as fai...
^
DETAIL: \u0000 cannot be converted to text.
CONTEXT: JSON data, line 1: { "a":...
SELECT jsonb '{ "a": "null \\u0000 escape" }' ->> 'a' as not_an_escape;
not_an_escape
--------------------
null \u0000 escape
(1 row)
|
