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  1. Interview Questions
  2. When would you decide NOT to add an index, and how do you decide column order in a composite index?
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ScenarioIntermediateBackend

When would you decide NOT to add an index, and how do you decide column order in a composite index?

Follow-up questions

  • How would you find and remove unused indexes in production?
  • Why might the planner ignore an index even when one exists?

Related topics

SQL Indexes
#sql#index#composite-index#query-optimization