[I] [docs] Fix email generator in page user profile quickstart [fluss]

["wuchong (via GitHub)" <gi...@apache.org>]

wuchong opened a new issue, #4429:
URL: https://github.com/apache/fluss/issues/4429

   ### Problem
   
   The [Real-Time Page User Profile quickstart](https://fluss.apache.org/docs/1.0/quickstart/page_user_profile/) describes its Faker source as generating a bounded user population and expects UV to be lower than PV. However, the current email expression combines a random first name with a random number:
   
   ```sql
   #{Name.firstName}#{number.numberBetween 1,500}@example.com
   ```
   
   Because the first name is also randomly selected from a large population, the effective email cardinality is much larger than intended. During a normal quickstart run, emails rarely repeat, so users can observe `UV = PV` instead of the documented deduplication effect.
   
   ### Proposed fix
   
   Use a fixed prefix with the bounded numeric range:
   
   ```sql
   user#{number.numberBetween 1,500}@example.com
   ```
   
   Also update the sample `user_dict` output so that its email values match the corrected generator.


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Re: [I] [docs] Fix page user profile quickstart examples [fluss]

["wuchong (via GitHub)" <gi...@apache.org>]

wuchong closed issue #4429: [docs] Fix page user profile quickstart examples
URL: https://github.com/apache/fluss/issues/4429


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