001 Heap Index scan instead of Index only scan why
002 What is the unit of the Cost in Postgres Planner
003 All Isolation Levels - Explained Details
004 Snapshot and Repeatable Read Isolation difference
005 I have an Index why is the database doing a full table scan
006 Why Databases Read Pages instead of Rows
007 How does Indexing a column with duplicate values work
008 Should I drop unused indexes
009 Why use serializable Isolation Level when we have SELECT FOR UPDATE
010 Can I use the same database connection for multiple clients
011 Do I need a transaction if Im only reading
012 Why does an update in Postgres touches all indexes
013 What is the value of bitmap index scan
014 What does Explain Analyze actually do
015 Postgres vs MySQL (The fundamental differences).html