MySQL query using JSON functions returning NULL when trying to filter nested array elements
Could someone explain I'm working with an scenario with a MySQL query that uses JSON functions to filter records based on conditions within nested JSON arrays. I'm using MySQL version 8.0.26, and I have a table structure that looks like this: ```sql CREATE TABLE orders ( id INT PRIMARY KEY, details JSON ); ``` The `details` column contains JSON data similar to the following: ```json { "items": [ { "product_id": 1, "quantity": 2 }, { "product_id": 2, "quantity": 1 } ], "customer": { "name": "John Doe", "email": "john@example.com" } } ``` In my query, I'm trying to select all orders where a specific product is present in the `items` array. Here’s the query I wrote: ```sql SELECT * FROM orders WHERE JSON_CONTAINS(details->'$.items', JSON_OBJECT('product_id', 1)); ``` However, this query is returning NULL, and I need to figure out why. I’ve also tried using `JSON_SEARCH`: ```sql SELECT * FROM orders WHERE JSON_SEARCH(details->'$.items[*].product_id', 'one', '1') IS NOT NULL; ``` But this still doesn't produce any results. I've verified that there are indeed entries in the `details` JSON that meet the criteria, as I can check them manually. I also considered if there are issues with the JSON structure or the way I'm referencing the nested array, but according to the MySQL documentation, my syntax looks correct. I'm not getting any behavior messages, just empty results. What am I missing here? Is there a better way to handle filtering within nested JSON structures in MySQL? Any insights would be greatly appreciated! My development environment is Ubuntu. Any help would be greatly appreciated! I'm using Sql stable in this project. Thanks in advance!