Gremlin Types
The Gremlin destination (v2.0.0 and later) supports most Apache Arrow (opens in a new tab) types. The following table shows the supported types and how they are mapped to Gremlin data types.
| Arrow Column Type | Supported? | Gremlin Type |
|---|---|---|
| Binary | ✅ Yes | Bytes |
| Boolean | ✅ Yes | Boolean |
| Date32 | ✅ Yes | String |
| Date64 | ✅ Yes | String |
| Decimal | ✅ Yes | String |
| Dense Union | ✅ Yes | String |
| Dictionary | ✅ Yes | String |
| Duration[ms] | ✅ Yes | String |
| Duration[ns] | ✅ Yes | String |
| Duration[s] | ✅ Yes | String |
| Duration[us] | ✅ Yes | String |
| Fixed Size List | ✅ Yes | String |
| Float16 | ✅ Yes | String |
| Float32 | ✅ Yes | Float |
| Float64 | ✅ Yes | Float |
| Inet | ✅ Yes | String |
| Int8 | ✅ Yes | Integer |
| Int16 | ✅ Yes | Integer |
| Int32 | ✅ Yes | Integer |
| Int64 | ✅ Yes | Integer |
| Interval[DayTime] | ✅ Yes | String |
| Interval[MonthDayNano] | ✅ Yes | String |
| Interval[Month] | ✅ Yes | String |
| JSON | ✅ Yes | String |
| Large Binary | ✅ Yes | Bytes |
| Large List | ✅ Yes | String |
| Large String | ✅ Yes | String |
| List | ✅ Yes | String or List † |
| MAC | ✅ Yes | String |
| Map | ✅ Yes | String |
| String | ✅ Yes | String |
| Struct | ✅ Yes | String |
| Timestamp[ms] | ✅ Yes | String * |
| Timestamp[ns] | ✅ Yes | String |
| Timestamp[s] | ✅ Yes | String |
| Timestamp[us] | ✅ Yes | String |
| UUID | ✅ Yes | String |
| Uint8 | ✅ Yes | String |
| Uint16 | ✅ Yes | Integer |
| Uint32 | ✅ Yes | Integer |
| Uint64 | ✅ Yes | Integer |
| Union | ✅ Yes | String |
Notes
* Timestamps are converted to strings in the format yyyy-MM-dd HH:mm:ss.SSSSSSSSS (UTC timezone) (e.g. 2021-01-01 00:00:00.000000000). _cq_sync_time column is persisted in native Timestamp type.
† List types are persisted as-is only if complete_types option is enabled. Otherwise, they are converted to strings.
NUL bytes are stripped from strings.
