RussellSpitzer commented on code in PR #18416:
URL: https://github.com/apache/iceberg/pull/18416#discussion_r4225399490
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format/spec.md:
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@@ -1888,6 +1901,7 @@ The binary single-value serialization can be used to
store the lower and upper b
| **`binary`** | **`JSON string`** |
`"000102ff"` | Stored as a hexadecimal string |
| **`struct`** | **`JSON object by field ID`** | `{"1": 1,
"2": "bar"}` | Stores struct fields using the field ID as
the JSON field name; field values are stored using this JSON single-value
format |
| **`list`** | **`JSON array of values`** | `[1, 2, 3]`
| Stores a JSON array of values that are
serialized using this JSON single-value format |
+| **`vector(E, D)`** | **`JSON array of values`** | `[1.0, 2.0,
3.0]` | Stores exactly D values using E's JSON
single-value format |
Review Comment:
Are we allowing defaults? If so that would be one use case but this would be
a pretty inefficient storage since I assume folks would want to default to all
0 or something
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