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MDEV-22640, MDEV-22449, MDEV-21528 JSON_ARRAYAGG crashes with NULL values.

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We have to include NULL in the result which the GOUP_CONCAT doesn't
always do. Also converting should be done into another String instance
as these can be same.
This commit is contained in:
Alexey Botchkov
2020-06-04 10:00:56 +04:00
parent e7bab059b7
commit bb47050e1f
6 changed files with 42 additions and 29 deletions
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3
mysql-test/main/func_json.test
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@ -752,6 +752,9 @@ select json_arrayagg(a) over () from (select 1 a) t;
--error ER_NOT_SUPPORTED_YET
select json_objectagg(a, b) over () from (select 1 a, 2 b) t;
SELECT JSON_ARRAYAGG(NULL) FROM (SELECT 1 AS t) AS A;
SELECT JSON_ARRAYAGG("null") FROM (SELECT 1 AS t) AS A;
--echo #
--echo # End of 10.5 tests
--echo #