PostgreSQL query using jsonb column not returning expected results with array containment
I just started working with I tried several approaches but none seem to work. I'm converting an old project and I've searched everywhere and can't find a clear answer... I'm working on a PostgreSQL 13 database where I have a table `users` with a `settings` column of type `jsonb`. I'm trying to filter users based on a specific key within the JSON that contains an array. The JSON structure looks like this: ```json { "notifications": ["email", "sms"], "theme": "dark" } ``` My goal is to find all users who have 'email' in their `notifications` array. I wrote the following query: ```sql SELECT * FROM users WHERE settings -> 'notifications' @> '"email"'; ``` However, this query returns no results, even though I know there are entries in the `settings` column that contain 'email' in the notifications array. I've also tried the following variants: ```sql SELECT * FROM users WHERE settings -> 'notifications' @> '[]' OR settings -> 'notifications' ? 'email'; ``` Both attempts have not yielded the expected results. I also checked the column data type and confirmed it is indeed `jsonb`. I've looked through the PostgreSQL documentation but I'm still missing something crucial. Any insights on why my query isn't returning the expected results would be greatly appreciated! For context: I'm using Sql on Ubuntu. What's the best practice here? What's the best practice here? My development environment is macOS. What would be the recommended way to handle this? I'm working in a CentOS environment. Thanks, I really appreciate it! Any ideas what could be causing this?