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MDEV-35614: JSON_UNQUOTE doesn't work with emojis

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emojis are a 4 byte utf sequence. Fix the conversion in JSON_UNQUOTE
to utf8mb4_bin by default.
This commit is contained in:
Daniel Black
2024-12-12 15:02:46 +11:00
parent 5a536adb03
commit ccbcafc22e
4 changed files with 63 additions and 4 deletions
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22
mysql-test/main/func_json.test
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@@ -1194,6 +1194,7 @@ SELECT JSON_EXTRACT('{"a": 1,"b": 2}','$.a');
SET @@collation_connection= @save_collation_connection;
--echo #
--echo # End of 10.5 tests
--echo #
@@ -1231,6 +1232,27 @@ SELECT
data
FROM JSON_TABLE (@data, '$[*]' COLUMNS (data text PATH '$.Data')) AS t;
--echo #
--echo # MDEV-35614 JSON_UNQUOTE doesn't work with emojis
--echo #
SELECT HEX(JSON_UNQUOTE('"\\ud83d\\ude0a"')) as hex_smiley;
set names utf8mb4;
SELECT JSON_UNQUOTE('"\\ud83d\\ude0a"') as smiley;
SELECT JSON_UNQUOTE('"\\ud83d\\ude0a"') = JSON_UNQUOTE('"\\ud83d\\ude0a"') as equal_smileys;
SELECT JSON_UNQUOTE('"\\ud83d\\ude0a"') <= JSON_UNQUOTE('"\\ud83d\\ude0a"') as less_or_equal_smileys;
set @v='{ "color":"😊" }';
select @v as v, collation(@v) as collation_v;
select json_valid(@v) as valid;
select json_extract(@v,'$.color') as color_extraction, collation(json_extract(@v,'$.color')) as color_extraction_collation;
select json_unquote(json_extract(@v,'$.color')) as unquoted, collation(json_unquote(json_extract(@v,'$.color'))) as unquoted_collation;
SELECT JSON_UNQUOTE('"\\uc080\\ude0a"') as invalid_utf8mb4;
show warnings;
--echo #
--echo # End of 10.6 tests
--echo #