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MDEV-13306 JSON_CONTAINS returns wrong value.

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The 'value' state should be saved to be compared against the
        next array item.
This commit is contained in:
Alexey Botchkov 2017-10-05 23:23:39 +04:00
parent 08c493c62a
commit 1f6ada8da8
3 changed files with 11 additions and 0 deletions
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3
mysql-test/r/func_json.result
View file

@ -152,6 +152,9 @@ json_contains('[{"abc":"def", "def":"abc"}]', '["foo","bar"]')
select json_contains('[{"abc":"def", "def":"abc"}, "bar"]', '["bar", {}]');
json_contains('[{"abc":"def", "def":"abc"}, "bar"]', '["bar", {}]')
1
select json_contains('[{"a":"b"},{"c":"d"}]','{"c":"d"}');
json_contains('[{"a":"b"},{"c":"d"}]','{"c":"d"}')
1
select json_contains_path('{"key1":1, "key2":[2,3]}', "oNE", "$.key2[1]");
json_contains_path('{"key1":1, "key2":[2,3]}', "oNE", "$.key2[1]")
1

1
mysql-test/t/func_json.test
View file

@ -56,6 +56,7 @@ select json_contains('[1, {"a":1}]', '{}');
select json_contains('[1, {"a":1}]', '{"a":1}');
select json_contains('[{"abc":"def", "def":"abc"}]', '["foo","bar"]');
select json_contains('[{"abc":"def", "def":"abc"}, "bar"]', '["bar", {}]');
select json_contains('[{"a":"b"},{"c":"d"}]','{"c":"d"}');
select json_contains_path('{"key1":1, "key2":[2,3]}', "oNE", "$.key2[1]");
select json_contains_path('{"key1":1, "key2":[2,3]}', "oNE", "$.key2[10]");

7
sql/item_jsonfunc.cc
View file

@ -1011,6 +1011,8 @@ static int check_contains(json_engine_t *js, json_engine_t *value)
case JSON_VALUE_ARRAY:
if (value->value_type != JSON_VALUE_ARRAY)
{
loc_js= *value;
set_js= FALSE;
while (json_scan_next(js) == 0 && js->state != JST_ARRAY_END)
{
int c_level, v_scalar;
@ -1021,6 +1023,11 @@ static int check_contains(json_engine_t *js, json_engine_t *value)
if (!(v_scalar= json_value_scalar(js)))
c_level= json_get_level(js);
if (set_js)
*value= loc_js;
else
set_js= TRUE;
if (check_contains(js, value))
{
if (json_skip_level(js))