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MDEV-29212: json_overlaps() does not check nested key-value pair correctly

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Analysis: JSON_OVERLAPS() does not check nested key-value pair completely.
If there is nested object, then it only scans and validates if two json values
overlap until one of the value (which is of type object) is exhausted.
This does not really check if the two values of keys are exacly the same, instead
it only checks if key-value pair of one is present in key-value pair of the
other
Fix: Normalize the values (which are of type object) and compare
using string compare. This will validate if two values
are exactly the same.
This commit is contained in:
Rucha Deodhar
2022-07-30 16:56:18 +05:30
parent bfdc4ff22e
commit 11d6de7032
3 changed files with 126 additions and 51 deletions
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9
mysql-test/main/func_json.test
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@ -1533,6 +1533,15 @@ SELECT JSON_EXISTS(@json, '$[2][2][1 to 4]');
SELECT * FROM JSON_TABLE('{"foo":["bar","qux"]}','$**.*[0]' COLUMNS(col1 CHAR(8) PATH '$[0]')) AS jt;
--echo #
--echo # MDEV-29212: json_overlaps() does not check nested key-value pair correctly
--echo #
SET @json1 = '{"kk":{"k1":"v1","k2":"v2"}}';
SET @json2 = '{"kk":{"k1":"v1","k2":"v2","k3":"v3"}}';
SELECT JSON_OVERLAPS(@json2, @json1);
SELECT JSON_OVERLAPS(@json1, @json2);
--echo #
--echo # End of 10.9 Test
--echo #