PostgreSQL - Advanced Features
You want to optimize a query that filters JSONB data on a key frequently. Which PostgreSQL feature should you use to improve performance?
You want to optimize a query that filters JSONB data on a key frequently. Which PostgreSQL feature should you use to improve performance?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Identify indexing options for JSONB
PostgreSQL supports GIN indexes optimized for JSONB containment queries.Step 2: Evaluate options for performance
Creating a GIN index on the JSONB column speeds up key-based filtering efficiently.Final Answer:
Create a GIN index on the JSONB column -> Option CQuick Check:
JSONB filtering optimization = GIN index [OK]
Quick Trick: Use GIN indexes for fast JSONB key queries [OK]
Common Mistakes:
- Indexing JSONB as text loses query speed
- Relying on materialized views without indexes
- Splitting JSONB into tables unnecessarily
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