Get Group by and count on Array field in PostgreSQL Jsonb column - sql

Question

I have my table like this
user_Id
survey
1001
{"What are you interested in?": "[Games]", "How do you plan to use Gamester?": "[Play games, Watch other people play, Connect with other gamers]" }
1001
{"What are you interested in?": "[Coupons]", "How do you plan to use Gamester?": "[Watch other people play]" }
1001
{"What are you interested in?": "[Games]", "How do you plan to use Gamester?": "[Play games]" }
I want to group by second field How do you plan to use Gamester? And have output like below
Option
Count
Play games
2
Watch other people play
2
Connect with other gamers
1
All the examples I found were for String fields and not for array. Tried few thing but not working. Kindly help how can I group on array field values in josonb column and get count.

Answer 1

Your json data array in the How do you plan to use Gamester? property is wrong. Since you are storing a string and not an array of values.
Replace all values ​​as shown below:
Source Format: "[Play games, Watch other people play, Connect with other gamers]"
Required Format: ["Play games", "Watch other people play", "Connect with other gamers"]
After fixing your data, you can use the jsonb_path_query function and return a list of values ​​from the desired property, and then group them.
with cte_plan as (
select
jsonb_path_query(survey, '$."How do you plan to use Gamester?"[*]') as option
from my_table
)
select option, count(option) from cte_plan group by option;
Result
option
count
Watch other people play
2
Play games
2
Connect with other gamers
1
Demo in DBfiddle