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 Duration 14 hours

Course Outline

1. Understanding PostgreSQL Query Planner

  • Insight into query execution plans and Query Planner algorithms (classic, genetic)
  • Examining query execution plans, including data access and join methods
  • Managing plan selection via configuration parameters and pg_hint_plan

2. Query Planner Statistics

  • Evaluating execution plan cost estimates
  • Understanding the default statistics model
  • Leveraging ANALYZE operations and extended statistics

3. Using Indexes

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

4. Using Advanced Table Structures

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

5. Using Cache Memory

  • Buffer Cache
  • Work Memory
  • Maintenance Work Memory

6. Parallel Query

  • Architecture overview
  • Relevant configuration parameters
  • Analyzing parallelized query execution plans

7. Workload and Performance Monitoring

  • Capturing slow queries through logging
  • Utilizing the auto_explain extension
  • Utilizing the pg_stat_statements extension
  • Reviewing Cumulative Statistics

8. Benchmarking with PgBench

Requirements

  • Successful completion of PostgreSQL Server Administration or comparable expertise
  • Hands-on experience with SQL and PostgreSQL operations

Audience

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

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