How to create a JSON object in MySql with a boolean value?

Question

I would like my MySql query to return a JSON object that looks as follows:

{\"name\": \"Piotr\", \"likesMysql\": true}

This seems to be wor

Answer 1

This seems to be a bug in MySql.

You can workaround it though with cast(true as json) e.g.:

SELECT json_object(
    'name', 'Piotr',
    'likesMysql', if(4 MOD 2 = 0, cast(TRUE as json), cast(FALSE as json))
)

Answer 2

Aniket Bhansali's approach could be simplified as:

select json_object(
    'bool_true', (4 mod 2 = 0) is true,
    'bool_false', 0 is true) b;

which returns

{"bool_true": true, "bool_false": false}

Tested on mysql 8.

Answer 3

SELECT json_object(
   'name', 'Piotr',
   'likesMysql', 4 MOD 2 != 0
)

Answer 4

Simply go with following,

SELECT json_object( 'name', 'Piotr', 'likesMysql', if(5 MOD 2 = 0, TRUE, FALSE) is true )

Hope you get desired result with this :)