im trying to combine the result of my multiple rows to one row using function arrag_agg but it gives me the results as i want in 1 row with comma-separated list, however i dont need any other characters like the brackets at first and last character, noting that i tried to use string_agg but the function is not registered

Table name user.info with column phone_numbers
When i used

Select array_agg(phone_numbers) as phonenumbers from user.info

It showed resuts as below for sample

[9747827463,97432726363,974836367282]

What i need is to remove these brackets and leave the row results with only comma separated like

 9747827463,97432726363,974836367282