Bin Wang - PostgreSQL Uncovered Internals, Trace Analysis, and Performance (2026)

Creation Time	Feb. 25, 2026, 1:56 a.m.
Last Access Time	March 4, 2026, 3:14 a.m.
File Size	587.5 MB
Keywords	Bin and PostgreSQL Wang Trace Internals - Analysis Uncovered 2026 Performance
Total Requests	7
Total Files	179
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Trace Tool/mysql-8.0.42-el7-x86_64-trace-v2.tar.gz 166.3 MB
traces/postgres_lesson_36_join_geqo_analyze.log 82.8 MB
traces/postgres_lesson_34_join_geqo.log 59.2 MB
Trace Tool/postgresql-17.2-el7-x86_64-trace-v7.tar.gz 30.2 MB
Trace Tool/postgresql-17.2-el7-x86_64-trace-v5.tar.gz 24.7 MB
traces/postgres_lesson_15_vacuum_success.log 23.8 MB
traces/postgres_lesson_56_hot_update.log 19.4 MB
traces/postgres_lesson_56_select.log 18.2 MB
traces/postgres_lesson_15_vacuum_fail.log 17.8 MB
traces/postgres_lesson_56_long_trans_select.log 15.2 MB
traces/postgres_lesson_38_sort_aggr.log 12.4 MB
traces/postgres_lesson_38_hash_aggr.log 11.4 MB
traces/postgres_lesson_50_citus_plan.log 10.0 MB
traces/postgres_lesson_51_citus_join_execute.log 10.0 MB
traces/postgres_lesson_38_count_distinct.log 8.2 MB
traces/postgres_lesson_38_count.log 6.2 MB
traces/postgres_lesson_57_vacuum.log 4.7 MB
traces/postgres_lesson_33_join_tree_without_bushy_plans.log 4.0 MB
traces/postgres_lesson_33_join_tree.log 4.0 MB
traces/postgres_lesson_34_geqo_sample_tour.log 3.6 MB
traces/postgres_lesson_35_join_tree.log 3.4 MB
traces/postgres_lesson_34_join_geqo_optimized.log 3.3 MB
traces/postgres_lesson_34_join_dp.log 2.9 MB
traces/postgres_lesson_44_create_extension_simplified.log 2.1 MB
traces/postgres_lesson_39_parallel_plan_worker2.log 2.0 MB
traces/postgres_lesson_39_parallel_plan_worker1.log 2.0 MB
traces/postgres_lesson_32_merge_join.log 1.9 MB
traces/postgres_lesson_32_nested_loop.log 1.8 MB
traces/postgres_lesson_17_first_visit.log 1.2 MB
traces/postgres_lesson_08.log 1.2 MB
traces/postgres_lesson_28_deadlock_sess_two.log 1.1 MB
traces/postgres_lesson_07.log 1.1 MB
traces/postgres_lesson_22_rc_session_a.log 1.0 MB
traces/postgres_lesson_22_rc_session_b.log 999.8 KB
traces/postgres_lesson_12_multi_update_rows.log 950.9 KB
traces/postgres_lesson_40_cte_recur.log 809.5 KB
traces/postgres_lesson_32_hash_join.log 806.6 KB
traces/postgres_lesson_38_aggregate_why_hash_sort_not_chosen.log 777.3 KB
traces/postgres_lesson_55_hot_select.log 775.9 KB
traces/postgres_lesson_24_before_killed.log 762.8 KB
traces/postgres_lesson_18_trans.log 748.1 KB
traces/postgres_lesson_21_foreign_key_constraint.log 654.0 KB
traces/postgres_lesson_31_join_method_cost.log 646.1 KB
traces/postgres_lesson_15_long_transactions.log 626.6 KB
traces/postgres_lesson_46_hstore.log 596.2 KB
traces/postgres_lesson_20.log 566.9 KB
traces/postgres_lesson_31_mergejoin_plan_error.log 562.9 KB
traces/postgres_lesson_31_mergejoin_cost.log 545.4 KB
traces/postgres_lesson_28_deadlock_sess_one.log 494.8 KB
traces/postgres_lesson_15_vacuum_with_long_transactions.log 437.0 KB
traces/postgres_lesson_49_citus.log 433.3 KB
traces/postgres_lesson_23_sesson_two.log 422.8 KB
traces/postgres_lesson_27_freeze.log 384.5 KB
traces/postgres_lesson_43_extension_citus_select.log 370.4 KB
traces/postgres_lesson_33_mysql_join_tree.log 366.4 KB
traces/postgres_lesson_19_ddl_trans_commit.log 359.7 KB
traces/postgres_lesson_08_normal.log 357.9 KB
traces/postgres_lesson_52_citus_dist_trans.log 347.1 KB
traces/postgres_lesson_19_ddl_trans_rollback.log 343.1 KB
traces/postgres_lesson_48_fdw_join_plan.log 338.8 KB
traces/postgres_lesson_29_read_only_add_trx_id.log 337.7 KB
Lesson 57. Why Performance Degrades Quickly in Long-Running TPC-C Tests.html 337.5 KB
traces/postgres_lesson_23_sesson_one.log 322.9 KB
traces/postgres_lesson_22_serializable_sesson_a.log 321.6 KB
traces/postgres_lesson_55_hot_update.log 319.2 KB
traces/postgres_lesson_22_serializable_sesson_b.log 316.6 KB
traces/postgres_lesson_47_trgm_like.log 304.6 KB
traces/postgres_lesson_25_all_recovery.log 304.1 KB
traces/postgres_lesson_16_select_behavior_before_vacuum.log 282.5 KB
traces/postgres_lesson_39_parallel_plan_master.log 277.4 KB
Lesson 39. PostgreSQL Parallel Query Execution The Key to Faster Analytics.html 261.8 KB
traces/postgres_lesson_11_sess_update_not_committed.log 252.5 KB
traces/postgres_lesson_05_partial.log 246.2 KB
traces/postgres_lesson_05_hot_update.log 237.0 KB
Lesson 22. Isolation Levels in PostgreSQL_A Practical Introduction.html 226.8 KB
traces/postgres_lesson_41_window_func.log 224.6 KB
traces/postgres_lesson_22_rr_session_b.log 223.4 KB
traces/postgres_lesson_22_rr_session_a.log 208.1 KB
traces/postgres_lesson_28_advisory_sess_two.log 205.2 KB
Lesson 34. Join Enumeration Strategies Dynamic Programming vs Genetic Search.html 202.6 KB
traces/postgres_lesson_10_select_point_lookup.log 189.7 KB
traces/postgres_lesson_18_trans_failure.log 189.0 KB
traces/postgres_lesson_29_select_for_share.log 185.6 KB
Lesson 32. How JOINs Work Internally in PostgreSQL.html 183.7 KB
Lesson 38. How PostgreSQL Aggregates Work Internally.html 177.0 KB
Lesson 33. Join Tree Structures in Query Optimization.html 175.8 KB
Lesson 31. Inside PostgreSQL’s Cost Model How the Planner Thinks.html 172.8 KB
Lesson 28. Locks in PostgreSQL_An Easy Guide to Types and Use Cases.html 167.9 KB
traces/postgres_lesson_39_parallel_plan.log 166.8 KB
traces/postgres_lesson_01_select_for_update.log 165.6 KB
traces/postgres_lesson_03_select_for_share.log 164.7 KB
traces/postgres_lesson_31_access_method_cost.log 163.1 KB
traces/postgres_lesson_28_advisory_sess_one.log 162.9 KB
traces/postgres_lesson_13_postgres_mvcc.log 159.0 KB
traces/postgres_lesson_12_update_basic.log 158.2 KB
Lesson 8. B+ Tree Depth in PostgreSQL and Its Performance Impact.html 158.1 KB
traces/postgres_lesson_22_rr_comparison_sess_1.log 156.6 KB
Lesson 54. PostgreSQL Extensions_How They Affect Performance and Stability.html 156.5 KB
traces/postgres_lesson_45_auto_explain.log 147.3 KB
Lesson 48. Inside PostgreSQL Extensions_How FDW Works Under the Hood.html 145.6 KB
Lesson 7. How PostgreSQL Finds Rows in a B+ Tree_A Step-by-Step Example.html 143.4 KB
traces/postgres_lesson_45_pg_statements.log 141.3 KB
traces/postgres_lesson_16_select_behavior_after_vacuum.log 141.2 KB
traces/postgres_lesson_40_cte_inline.log 140.5 KB
traces/postgres_lesson_26_do_checkpoint.log 138.6 KB
traces/postgres_lesson_11_sess_update.log 134.2 KB
Lesson 42. Why PostgreSQL Query Optimization Is So Challenging.html 130.9 KB
traces/postgres_lesson_30_count.log 128.6 KB
traces/postgres_lesson_40_cte_materialized.log 128.1 KB
Lesson 18. Inside PostgreSQL How Transactions Really Work.html 128.1 KB
Lesson 12. Inside PostgreSQL Writes From Shared Buffers to Disk.html 124.1 KB
Lesson 3. How a SQL Query Is Executed in PostgreSQL.html 121.9 KB
traces/postgres_lesson_21_primary_key_constraint.log 121.6 KB
Lesson 47. How pg_trgm Speeds Up Fuzzy Text Search.html 121.5 KB
Lesson 55. Why Hotspot Updates Hurt PostgreSQL Performance.html 121.2 KB
Lesson 45. Representative PostgreSQL Extensions and Their Capabilities.html 119.4 KB
traces/postgres_lesson_48_fdw.log 116.7 KB
Lesson 36. Understanding Join Graph Topology and Its Impact on Query Optimization.html 113.7 KB
Lesson 21. Data Consistency in PostgreSQL_Constraints and Guarantees.html 112.8 KB
Lesson 16. PostgreSQL VACUUM Understanding Performance, Benefits, and Costs.html 109.5 KB
Lesson 30. Inside PostgreSQL’s Planner_From Query to Logical Plan.html 108.1 KB
Lesson 41. How Databases Execute Window Functions A Deep Dive.html 107.9 KB
Lesson 52. Citus Transactions Uncovered How It Really Works.html 107.2 KB
traces/postgres_lesson_04.log 107.2 KB
Lesson 15. Autovacuum in PostgreSQL How It Works and When It Fails.html 106.2 KB
Lesson 11. Understanding WAL in PostgreSQL The Write-Ahead Log.html 106.2 KB
Lesson 5. PostgreSQL Indexes Deep Dive for Developers.html 104.9 KB
Lesson 49. Inside PostgreSQL Extensions_How Citus Works Under the Hood.html 104.2 KB
traces/postgres_lesson_54_fgw_under_multi_extentions.log 102.4 KB
Lesson 13. Why Doesn’t PostgreSQL Use Undo Logs for MVCC.html 102.2 KB
Lesson 24. Durability in PostgreSQL_How Crashes Don’t Lose Data.html 100.1 KB
Lesson 9. Index-Only Scans in PostgreSQL When Tables Are Skipped.html 97.4 KB
Lesson 53. How Extensions Shape PostgreSQL Planning and Execution.html 96.0 KB
Lesson 43. Planner Challenges in Distributed PostgreSQL.html 92.5 KB
traces/postgres_lesson_54_multi_extensions.log 90.5 KB
Lesson 50. How Citus Teaches the Planner to Think Globally.html 90.2 KB
Lesson 40. WITH Queries Demystified How PostgreSQL Plans CTEs.html 87.5 KB
Lesson 20. How PostgreSQL Ensures Atomicity Using MVCC, CLOG, and WAL.html 87.5 KB
Lesson 56. Why Long Transactions May Kill Your PostgreSQL Performance.html 87.1 KB
traces/postgres_lesson_13_mysql_mvcc.log 85.7 KB
Lesson 46. Understanding Hstore’s Extension Mechanism in PostgreSQL.html 85.7 KB
Lesson 44. What PostgreSQL Extensions Are and How They Work.html 84.6 KB
traces/postgres_lesson_05_fun_index.log 81.6 KB
Lesson 4. PostgreSQL Architecture Inside the Database Engine.html 79.4 KB
Lesson 37. Why PostgreSQL Handles This JOIN 10× Faster Than MySQL.html 78.1 KB
Lesson 27. Transaction ID Wraparound Why It Happens and How to Handle It.html 77.0 KB
Lesson 51. How Citus Handles Joins Internally.html 76.7 KB
Lesson 17. System Catalogs The Metadata Control Center of a Database.html 75.5 KB
Lesson 29. Do Read-Only Queries Really Need VACUUM in PostgreSQL.html 74.6 KB
traces/postgres_lesson_09_index_only_scan_invalid.log 74.5 KB
traces/postgres_lesson_21_check_constraint.log 74.3 KB
Lesson 10. Shared Buffers Explained What PostgreSQL Caches Internally.html 73.8 KB
Lesson 23. Same Isolation Level, Different Behavior PostgreSQL vs MySQL.html 73.5 KB
Lesson 25. Why ROLLBACK Is So Fast in PostgreSQL.html 73.3 KB
Lesson 19. PostgreSQL’s Hidden Strength Transactional DDL.html 72.9 KB
traces/postgres_lesson_09_index_only_scan.log 71.9 KB
Lesson 26. Checkpoints in PostgreSQL_What They Are and Why They Matter.html 71.7 KB
traces/postgres_lesson_17_catalog.log 71.2 KB
traces/postgres_lesson_08_bloat.log 68.5 KB
traces/postgres_lesson_22_rr_comparison_sess_2.log 66.6 KB
traces/postgres_lesson_03.log 65.2 KB
traces/postgres_lesson_01_simple_insert.log 63.8 KB
traces/postgres_lesson_14_mvcc_visit.log 60.0 KB
traces/postgres_lesson_11_flusher_wal.log 58.3 KB
Lesson 35. How PostgreSQL Reduces the Join Search Space.html 52.2 KB
Lesson 60. Becoming a PostgreSQL Expert_Roadmap to Rapid Growth.html 52.2 KB
Lesson 59. Migrating from MySQL to PostgreSQL Key Differences You Need to Know.html 49.3 KB
Lesson 58. Trace Analysis_Understanding Its Power and Limitations.html 47.5 KB
traces/postgres_lesson_03_mysql_select_for_share.log 47.4 KB
Lesson 6. Why PostgreSQL Uses Heap Storage.html 45.9 KB
Lesson 2. Inside PostgreSQL Unlocking Secrets with Trace Analysis.html 45.8 KB
Lesson 14. MVCC Internals_How PostgreSQL Keeps Old Versions Alive.html 43.8 KB
traces/postgres_lesson_30_mysql_count.log 43.7 KB
Lesson 1. Why PostgreSQL Is More Than Just Data Storage.html 40.2 KB
traces/postgres_lesson_24_recovery.log 27.6 KB
traces/postgres_lesson_24_checkpoint.log 16.2 KB
traces/postgres_lesson_11_flusher_bg.log 11.9 KB
traces/postgres_lesson_26_checkpoint.log 11.7 KB
Trace Tool/ReadMe.html 5.3 KB

Bin Wang - PostgreSQL Uncovered Internals, Trace Analysis, and Performance (2026)

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