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Question #298 Topic 1
You need to create a new transaction table in Cloud Spanner that stores product sales data. You are deciding what to use as a primary key. From a performance perspective, which strategy should you choose?
A
The current epoch time
B
A concatenation of the product name and the current epoch time
C
A random universally unique identifier number (version 4 UUID)
D
The original order identification number from the sales system, which is a monotonically increasing integer