PostgreSQL query with JSONB array not returning expected values when filtering
I've tried everything I can think of but I'm converting an old project and Can someone help me understand I've hit a wall trying to I'm working on a project and hit a roadblock....... I'm working with a PostgreSQL 13 database where I have a table `orders` that includes a JSONB column called `items`. Each record in this column contains an array of items, and I need to filter orders that include a specific item with a certain characteristic. However, my query is not returning the expected results. Here’s the structure of the `orders` table: ```sql CREATE TABLE orders ( id SERIAL PRIMARY KEY, customer_id INT, items JSONB ); ``` And here’s a sample of the JSONB data for the `items` column: ```json [ {"product_id": 1, "quantity": 2}, {"product_id": 2, "quantity": 1}, {"product_id": 3, "quantity": 5} ] ``` I’m trying to write a query that selects all orders that include an item with `product_id` equals `2`. I thought this query would work: ```sql SELECT * FROM orders WHERE items @> '[{"product_id": 2}]'; ``` However, this query returns no rows even though I have matching records in my database. I checked the JSON structure and confirmed that there are indeed items with `product_id` 2 in the orders. I also tried using the `jsonb_array_elements()` function to unpack the items: ```sql SELECT * FROM orders, jsonb_array_elements(items) AS item WHERE item->>'product_id' = '2'; ``` This query returns rows, but I just want to filter the original `orders` table without the additional rows from `jsonb_array_elements()`. What am I missing here? Is there a better way to structure my query to achieve the desired results? Additionally, are there any performance considerations I should be aware of when working with JSONB in PostgreSQL? Am I missing something obvious? My development environment is macOS. This is my first time working with Sql 3.11. I'm open to any suggestions. This is my first time working with Sql stable. What would be the recommended way to handle this? I'm on Linux using the latest version of Sql. Thanks for your help in advance!