DolphinDB vs openGemini
| DolphinDB | openGemini | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | api, extension, Linux, self-hosted, Web, Windows | Windows, macOS, Linux |
| Free plan | Yes | — |
| Deployment | both | self_hosted |
| SQL support | Yes | Yes |
| Retention policies | Yes | Yes |
| Horizontal scaling | Yes | Yes |
| Query languages | DolphinDB SQL; ANSI SQL/SQL-92; DolphinDB scripting language | InfluxQL, PromQL, GeminiQL |
| Ingestion methods | Text, binary, JSON, HDF5, Parquet, Arrow, ODBC, APIs, Kafka, MQTT, ZeroMQ, MySQL, MongoDB, HBase, kdb+ | InfluxDB Line Protocol, Apache Arrow Flight, Prometheus remote_write |
Both are listed in Best Time-Series Databases. On Samsung Mobile US Press, DolphinDB scores higher on our published basis.