What happens when a partial index is defined as CREATE INDEX idx ON orders(customer_id) WHERE status = ‘OPEN’?

Advanced SQL Developer Hard

Advanced SQL Developer — Hard

What happens when a partial index is defined as CREATE INDEX idx ON orders(customer_id) WHERE status = ‘OPEN’?

Key points

  • Partial index filters rows based on the WHERE condition
  • Improves performance for queries matching the condition
  • Reduces index size by excluding unnecessary rows
  • Enhances efficiency for specific query requirements

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