Does the order in which fields are included in a composite index matter?
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Does the order in which fields are included in a composite index matter?
How would you compute a hash to determine a shard?
Explain what the inventory_code field in the books table is, and what it represents.
Write the import statement for the used packages.
Tell how to implement cache sharding — how to determine which map to put/read a value based on the key?
You noticed that the implementation structure name matches the interface name — this won't be liked by the compiler, how to fix it?