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 Duration 14 hours

Course Outline

1. The PostgreSQL Query Planner

  • Query execution plans and planner algorithms (classic, genetic)
  • Interpreting query execution plans (data access and join methods)
  • Managing plan selection (configuration parameters, pg_hint_plan)

2. Query Planner Statistics

  • Cost estimation for execution plans
  • The default statistical model
  • ANALYZE operations and extended statistics

3. Index Optimization

  • B-tree indexes (single column, composite, function-based, partial)
  • Hash indexes
  • BRIN indexes
  • GiST and GIN indexes

4. Advanced Table Structures

  • Partitioned tables
  • Unlogged tables
  • Temporary tables
  • Materialised views

5. Cache Memory Management

  • Buffer Cache
  • Work Memory
  • Maintenance Work Memory

6. Parallel Query Execution

  • System architecture
  • Relevant configuration parameters
  • Analyzing parallelized query execution plans

7. Workload and Performance Monitoring

  • Logging slow queries
  • Leveraging the auto_explain extension
  • Utilizing the pg_stat_statements extension
  • Cumulative Statistics

8. Benchmarking with PgBench

Requirements

  • Successful completion of PostgreSQL Server Administration or equivalent expertise
  • Practical experience with SQL and PostgreSQL operations

Target Audience

Database Administrators, DevOps Engineers, and Developers tasked with maintaining and tuning PostgreSQL in production settings.

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