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MDEV-32287: JSON_EXTRACT not returning multiple values for same path

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Analysis:
When scanning json and getting the exact path at each step, if a path
is reached, we end up adding the item in the result and immediately get the
next item which results in current path changing.
Fix:
Instead of immediately returning the item, count the occurences of the path
in argument and append in the result as needed.
This commit is contained in:
Rucha Deodhar
2024-03-19 00:04:47 +05:30
parent d7df63e1c9
commit 5ca64e65d0
3 changed files with 31 additions and 8 deletions
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6
mysql-test/main/func_json.result
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@ -1690,6 +1690,12 @@ select json_arrayagg('ä'), json_objectagg(1, 'ä');
json_arrayagg('ä') json_objectagg(1, 'ä')
["ä"] {"1":"ä"}
#
# MDEV-32287: JSON_EXTRACT not returning multiple values for same path
#
select JSON_EXTRACT("[1, 2, [30, 40]]", '$[2][1]', '$[2][1]');
JSON_EXTRACT("[1, 2, [30, 40]]", '$[2][1]', '$[2][1]')
[40, 40]
#
# MDEV-31402: SIGSEGV in json_get_path_next | Item_func_json_extract::read_json
#
CREATE TABLE t (id CHAR AS (JSON_COMPACT (JSON_EXTRACT(doc,"$._id"))) UNIQUE KEY,doc JSON,CONSTRAINT notnu CHECK (id IS NOT NULL));