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MDEV-12789 JSON_KEYS returns duplicate keys twice.

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Check for duplicating keys added.
This commit is contained in:
Alexey Botchkov
2017-08-08 15:40:11 +04:00
parent 01a4eb8f76
commit 4bca34d8a4
3 changed files with 57 additions and 4 deletions
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6
mysql-test/r/func_json.result
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@ -356,6 +356,12 @@ json_keys('foo')
NULL
Warnings:
Warning 4038 Syntax error in JSON text in argument 1 to function 'json_keys' at position 1
select json_keys('{"a":{"c":1, "d":2}, "b":2, "c":1, "a":3, "b":1, "c":2}');
json_keys('{"a":{"c":1, "d":2}, "b":2, "c":1, "a":3, "b":1, "c":2}')
["a", "b", "c"]
select json_keys('{"c1": "value 1", "c1": "value 2"}');
json_keys('{"c1": "value 1", "c1": "value 2"}')
["c1"]
SET @j = '["abc", [{"k": "10"}, "def"], {"x":"abc"}, {"y":"bcd"}]';
select json_search(@j, 'one', 'abc');
json_search(@j, 'one', 'abc')