While Oracle GoldenGate is powerful within the Oracle ecosystem, using it to replicate from Oracle ➝ PostgreSQL / MySQL / other RDBMS introduces serious friction.

💣 Why GoldenGate Becomes Painful:

⚙️ Complex Configurations
Requires trail files, Extract/Replicat pairs, parameter tuning, and mapping logic — all handled manually.

🧩 Manual Type Mapping Hell
Oracle NUMBER(38,10) to Postgres NUMERIC? Custom mapping and transformations are needed — prone to errors.

🚫 DDL Replication is Limited
Schema changes in source? You’ll need external scripts or manual interventions to apply them downstream.

🐌 Lag Monitoring is Opaque
No out-of-the-box lag visibility for non-Oracle targets. You’ll build your own alerting stack.

💰 License & Component Overhead
Requires separate licenses, multiple binaries, and special configuration per DB engine.

🔄 Rollback and Conflict Resolution?
Limited tooling when syncing fails — especially with DML/DDL conflicts across heterogeneous targets.

✨ There’s a better way:
✅ Helyx – lightweight, CLI-native, Kafka-powered, and purpose-built for real-time Oracle ➝ Postgres/MySQL/MongoDB replication.
🚀 Auto schema evolution. No complex config.