[Solved] What benefit does adding an index to a materialized view provide in PostgreSQL? — Ans: It improves query performance by speeding up data retrieval. | PostgreSQL

PostgreSQL - Views and Materialized Views

What benefit does adding an index to a materialized view provide in PostgreSQL?

AIt improves query performance by speeding up data retrieval.

BIt automatically refreshes the materialized view when base tables change.

CIt compresses the data stored in the materialized view to save space.

DIt allows concurrent writes to the materialized view.

Step-by-Step Solution

Solution:

Step 1: Understand Index Purpose
Indexes are used to speed up data retrieval by allowing faster search operations.
Step 2: Apply to Materialized Views
Creating an index on a materialized view helps queries filter or join on indexed columns more efficiently.
Final Answer:
It improves query performance by speeding up data retrieval. -> Option A
Quick Check:
Indexes do not refresh views or compress data. [OK]

Quick Trick: Indexes speed up queries, not refresh or compress data. [OK]

Common Mistakes:

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What benefit does adding an index to a materialized view provide in PostgreSQL?