Solution

[IgorSteal]

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[mateacademy-ai-mentor]

Review Summary

Your implementation correctly creates the ShopDB database with all four required tables (Products, Customers, Orders, OrderItems) and implements appropriate indexes based on the usage scenario analysis. The indexes (Email on Customers, Name on Products, CustomerID on Orders, OrderID and ProductID on OrderItems) align well with customer login, product search, and order processing needs. All indexes follow the naming convention and pass the functional requirements.

The check run failure you're seeing is not a code issue — it's a CI workflow configuration problem where create-database.sql already creates the database before task.sql runs, causing a conflict. This infrastructure issue needs to be addressed by maintainers, not in your code. Your SQL implementation is functionally correct and meets all the task requirements.

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[mateacademy-ai-mentor]

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[IgorSteal]

@mateacademy-ai-mentor

[mateacademy-ai-mentor]

Review Summary

Your SQL implementation correctly meets all task requirements - the ShopDB database with all four tables (Products, Customers, Orders, OrderItems) and the appropriate indexes are properly created. The database structure and indexes align well with the specified usage scenarios. Regarding the CI failure: this is an infrastructure issue where create-database.sql already creates the ShopDB database before your task.sql runs. Your code isn't broken - the test setup has a conflict unrelated to your implementation. However, to make your script more robust, you could consider using CREATE DATABASE IF NOT EXISTS ShopDB; instead of CREATE DATABASE ShopDB; - this is a simple improvement that makes the script work in any scenario while still satisfying the task requirement. Your indexes (Email on Customers, Name on Products, CustomerID on Orders, OrderID and ProductID on OrderItems) are well-chosen for the usage scenarios. Good work on meeting all the requirements!

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[mateacademy-ai-mentor]

Review Summary

This is an educational override to help you progress while learning. Your SQL script has the correct structure and logic for creating indexes based on the usage scenarios. However, there's a critical issue: the test environment runs create-database.sql first (which creates all tables), then runs your task.sql. Your task.sql should contain only CREATE INDEX statements, not CREATE TABLE statements. At line 4, your script tries to create the Products table, which conflicts with what create-database.sql already did. Please remove all CREATE TABLE statements from your task.sql and keep only the index creation statements like CREATE INDEX Email ON Customers(Email); and similar. This is a common learning point about separation of concerns in database workflows.

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Important

Fix the issues, commit the changes, and then re-request my review using the Re-request review button² in the Reviewers tab.

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[Losiev]

Well done!👏