Exporting MySql table into JSON Object - mysql

Question

how to convert my mysql table result into json Object in database level
for example ,
SELECT json_array(
group_concat(json_object( name, email))
FROM ....
it will produce the result as
[
{
"name": "something",
"email": "someone#somewhere.net"
},
{
"name": "someone",
"email": "something#someplace.com"
}
]
but what i need is i need to given my own query which may contains functions, subqueries etc.
like in postgres select row_to_json(select name,email,getcode(branch) from .....) then i will get the whole result as json object
in mysql is there any possibilities to do like this?
select jsonArray(select name,email,getcode(branch) from .....)

Answer 1

I only found in official Mysql 8 and 5.7 documentation that it supports casting to JSON type. It includes a JSON_ARRAY function in MySQL 8 and 5.7, and JSON_ARRAYAGG function in MySQL 8. Please see the full JSON functions reference here.
It means that does not exist an easy mysql built-in solution to the problem.
Fortunately, our colleagues started a similar discussion here. Maybe you could find your solution there.
For one searching for well-defined attributes JSON casting, the solution is here.