Quick Answer
PostgreSQL for real-time analytics without impacting OLTP: read from streaming replication standby (dedicated analytics replica). Use materialized views refreshed incrementally. TimescaleDB extension for time-series analytics. Logical replication to a separate analytics database (Redshift, ClickHouse). Connection pooling (PgBouncer) to isolate OLTP connections. Partition tables so analytics scans only relevant partitions.
Answer
Use dual-layer architecture: OLTP writes to PostgreSQL, while logical decoding streams WAL changes to OLAP systems. Use incremental materialized views, partitioning, and move historical data to cold storage to isolate workloads.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
