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MDEV-24784 JSON_ARRAYAGG charset issue

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set the proper charset for a temporary result
This commit is contained in:
Sergei Golubchik
2023-11-02 14:57:37 +01:00
parent 9a545eb67c
commit 8bbf6697cf
4 changed files with 29 additions and 1 deletions
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11
mysql-test/main/func_json.result
View File

@ -1646,5 +1646,16 @@ SELECT JSON_OBJECTAGG('\\', 1);
JSON_OBJECTAGG('\\', 1)
{"\\":1}
#
# MDEV-24784 JSON_ARRAYAGG charset issue
#
set names utf8;
select json_arrayagg('ä'), json_objectagg(1, 'ä');
json_arrayagg('ä') json_objectagg(1, 'ä')
["ä"] {"1":"ä"}
set names latin1;
select json_arrayagg('ä'), json_objectagg(1, 'ä');
json_arrayagg('ä') json_objectagg(1, 'ä')
["ä"] {"1":"ä"}
#
# End of 10.5 tests
#

11
mysql-test/main/func_json.test
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@ -1108,7 +1108,16 @@ SELECT JSON_OBJECTAGG('"', 1);
SELECT JSON_OBJECTAGG('\"', 1);
SELECT JSON_OBJECTAGG('\\', 1);
--echo #
--echo # MDEV-24784 JSON_ARRAYAGG charset issue
--echo #
--disable_service_connection
set names utf8;
select json_arrayagg('ä'), json_objectagg(1, 'ä');
set names latin1;
select json_arrayagg('ä'), json_objectagg(1, 'ä');
--enable_service_connection
--echo #
--echo # End of 10.5 tests
--echo #

7
sql/item_jsonfunc.cc
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@ -3907,6 +3907,13 @@ int Arg_comparator::compare_e_json_str_basic(Item *j, Item *s)
return MY_TEST(sortcmp(res1, res2, compare_collation()) == 0);
}
bool Item_func_json_arrayagg::fix_fields(THD *thd, Item **ref)
{
bool res= Item_func_group_concat::fix_fields(thd, ref);
m_tmp_json.set_charset(collation.collation);
return res;
}
String *Item_func_json_arrayagg::get_str_from_item(Item *i, String *tmp)
{

1
sql/item_jsonfunc.h
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@ -570,6 +570,7 @@ public:
}
const char *func_name() const override { return "json_arrayagg("; }
bool fix_fields(THD *thd, Item **ref) override;
enum Sumfunctype sum_func() const override { return JSON_ARRAYAGG_FUNC; }
String* val_str(String *str) override;