[Solved] Why does PostgreSQL's B-tree index perform well for both equality and range queries? — Ans: Because B-tree maintains sorted order and balanced tree structure for fast... | PostgreSQL

PostgreSQL - Indexing Strategies

Why does PostgreSQL's B-tree index perform well for both equality and range queries?

ABecause B-tree stores data in random order for quick access

BBecause B-tree maintains sorted order and balanced tree structure for fast traversal

CBecause B-tree uses hashing internally for equality checks

DBecause B-tree compresses data to reduce disk usage

Step-by-Step Solution

Solution:

Step 1: Understand B-tree structure benefits
B-tree keeps data sorted and balanced, enabling quick search and ordered traversal.
Step 2: Link structure to query types
Sorted order helps range queries; balanced tree ensures fast equality lookups.
Final Answer:
Because B-tree maintains sorted order and balanced tree structure for fast traversal -> Option B
Quick Check:
B-tree sorted balanced structure = fast equality and range queries [OK]

Quick Trick: Sorted balanced trees enable fast equality and range searches [OK]

Common Mistakes:

Master "Indexing Strategies" in PostgreSQL

9 interactive learning modes - each teaches the same concept differently

Why does PostgreSQL's B-tree index perform well for both equality and range queries?