RussellSpitzer commented on code in PR #14888:
URL: https://github.com/apache/iceberg/pull/14888#discussion_r2635385590
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docs/docs/schemas.md:
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@@ -34,9 +34,16 @@ Iceberg tables support the following types:
| **`time`** | Time of day without date, timezone
| Stored as microseconds |
| **`timestamp`** | Timestamp without timezone
| Stored as microseconds |
| **`timestamptz`** | Timestamp with timezone
| Stored as microseconds |
+| **`timestamp_ns`** | Timestamp without timezone, nanosecond precision
| Stored as nanoseconds; added in v3 |
+| **`timestamptz_ns`** | Timestamp with timezone, nanosecond precision
| Stored as nanoseconds; added in v3 |
| **`string`** | Arbitrary-length character sequences
| Encoded with UTF-8 |
+| **`uuid`** | Universally unique identifiers
| Should use 16-byte fixed |
| **`fixed(L)`** | Fixed-length byte array of length L
| |
| **`binary`** | Arbitrary-length byte array
| |
+| **`variant`** | Semi-structured data (JSON-like)
| Added in v3; requires Spark 4.0+ |
+| **`geometry(C)`** | Geospatial features with CRS parameter
| Planar calculations; added in v3 |
Review Comment:
not sure "calculations" is the right word here, I don't know the Geo Space
well enough but I would have guessed maybe kernel? Or Topography
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