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Do you have experience analyzing query plans in PostgreSQL? Can you extract and analyze a query plan?

sobes.tech AI

Answer from AI

Yes, I have experience analyzing query plans in PostgreSQL. To obtain a query plan, the command used is:

EXPLAIN ANALYZE <your_query>;

It returns a detailed execution plan with information about time, number of rows, and used indexes.

When analyzing, I pay attention to:

  • Use of indexes or full table scans (Seq Scan).
  • Estimated number of rows at each stage.
  • Execution time of each step.
  • Presence of bottlenecks, such as sorts or hash joins.

Based on this, the query can be optimized by adding indexes, rewriting conditions, or changing the data structure.