EDB Postgres Distributed vs NineData

EDB Postgres Distributed has no write-up on Specifiction yet; its figures are above.

NineData is a platform for database DevOps, replication, comparison, and AI-assisted data management. Database DevOps covers SQL standards review, approval workflows, automated release and rollback, archiving, and change tracking. Replication handles homogeneous and heterogeneous sources, cross-region synchronization, and cross-cloud or cross-environment migration. Data Comparison supports full, sampling-based, feature-column, and incremental checks, with repair SQL and DDL script generation. AI functions include slow SQL optimization, natural-language SQL generation, and support for multiple large language models. Supported sources include MySQL, PostgreSQL, Oracle, SQL Server, MongoDB, Redis, Milvus, ClickHouse, Doris, StarRocks, Hive, MaxCompute, and other listed systems. Deployment includes on-premise Community, managed SaaS, and private-environment Enterprise. Community is free forever and allows up to 10 data sources and 10 replication tasks. SaaS Data Replication costs $30 a month, billed by task volume and specifications. SaaS Data DevOps costs $1,000 a month on the same basis.