[Solved] Which statement best explains why autovacuum is critical in PostgreSQL? — Ans: It automatically cleans dead rows to maintain performance without manual... | PostgreSQL

PostgreSQL - Transactions and Concurrency

Which statement best explains why autovacuum is critical in PostgreSQL?

AIt automatically cleans dead rows to maintain performance without manual intervention

BIt automatically backs up the database every hour

CIt automatically creates indexes on frequently queried columns

DIt automatically changes table schemas to optimize storage

Step-by-Step Solution

Solution:

Step 1: Understand autovacuum's role
Autovacuum runs VACUUM automatically to clean dead rows and prevent bloat.
Step 2: Eliminate unrelated functions
Autovacuum does not perform backups, create indexes, or change schemas automatically.
Final Answer:
It automatically cleans dead rows to maintain performance without manual intervention -> Option A
Quick Check:
Autovacuum = automatic dead row cleanup [OK]

Quick Trick: Autovacuum cleans dead rows automatically [OK]

Common Mistakes:

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Which statement best explains why autovacuum is critical in PostgreSQL?