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MDEV-11444 Server crashes in String::ptr / Item_func_json_depth::val_int.

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CAST AS JSON didn't set the null_value mark properly.
This commit is contained in:
Alexey Botchkov
2016-12-03 11:32:47 +04:00
parent 4ad0813a55
commit eca1579051
4 changed files with 13 additions and 5 deletions
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3
mysql-test/r/func_json.result
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@ -223,3 +223,6 @@ json_object("a", '{"b": "abcd"}')
select json_object("a", cast('{"b": "abcd"}' as json));
json_object("a", cast('{"b": "abcd"}' as json))
{"a": {"b": "abcd"}}
select json_depth(cast(NULL as JSON));
json_depth(cast(NULL as JSON))
NULL