PostgreSQL Interview Questions
Core Concepts
ACID properties, MVCC, durability and storage model.
View sample →Indexes
B-tree, GIN, GiST, partial and expression indexes.
View sample →Queries & Explain Plans
EXPLAIN ANALYZE, plan shapes, and common optimizations.
View sample →Transactions & Concurrency
Isolation levels, locking, deadlocks, and optimistic concurrency.
View sample →Replication & High Availability
Streaming replication, synchronous vs asynchronous, failover strategies.
View sample →Partitioning & Sharding
Declarative partitioning, performance trade-offs, and maintenance.
View sample →Backup & Restore
pg_dump, base backups, WAL archiving, and PITR strategies.
View sample →Extensions & Advanced Features
PostGIS, pg_trgm, logical replication, and FDWs.
View sample →Monitoring & Tuning
pg_stat views, autovacuum tuning, and resource planning.
View sample →Practice with AI mock interviews
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