advancedJSON Columns — PostgreSQL JSONB & MySQL JSON with Hibernate

Why is JSONB generally preferred over plain JSON in PostgreSQL for a column you intend to query into?

JSONB stores content in a parsed, binary internal representation rather than raw text, which is specifically what allows efficient indexing (a GIN index) and fast containment queries. Plain JSON stores the exact text and must be re-parsed on every access, making indexed querying into its structure far less efficient.

Ready to master this question?

Generate a complete walkthrough — background, the full answer in plain language, a working code example explained line by line, a real-world scenario, common mistakes, and how this same question gets asked in different ways.

Next Step

Continue to What's the core tradeoff of storing data in a JSON column instead of proper relational columns? →← Back to all Spring Data JPA & Hibernate Mastery questions