rdblue commented on code in PR #10831:
URL: https://github.com/apache/iceberg/pull/10831#discussion_r1815764535
##########
format/spec.md:
##########
@@ -1297,54 +1308,56 @@ Example
This serialization scheme is for storing single values as individual binary
values in the lower and upper bounds maps of manifest files.
-| Type | Binary serialization
|
-|------------------------------|--------------------------------------------------------------------------------------------------------------|
-| **`unknown`** | Not supported
|
-| **`boolean`** | `0x00` for false, non-zero byte for true
|
-| **`int`** | Stored as 4-byte little-endian
|
-| **`long`** | Stored as 8-byte little-endian
|
-| **`float`** | Stored as 4-byte little-endian
|
-| **`double`** | Stored as 8-byte little-endian
|
-| **`date`** | Stores days from the 1970-01-01 in an 4-byte
little-endian int |
-| **`time`** | Stores microseconds from midnight in an
8-byte little-endian long |
-| **`timestamp`** | Stores microseconds from 1970-01-01
00:00:00.000000 in an 8-byte little-endian long |
-| **`timestamptz`** | Stores microseconds from 1970-01-01
00:00:00.000000 UTC in an 8-byte little-endian long |
-| **`timestamp_ns`** | Stores nanoseconds from 1970-01-01
00:00:00.000000000 in an 8-byte little-endian long |
-| **`timestamptz_ns`** | Stores nanoseconds from 1970-01-01
00:00:00.000000000 UTC in an 8-byte little-endian long |
-| **`string`** | UTF-8 bytes (without length)
|
-| **`uuid`** | 16-byte big-endian value, see example in
Appendix B |
-| **`fixed(L)`** | Binary value
|
-| **`binary`** | Binary value (without length)
|
-| **`decimal(P, S)`** | Stores unscaled value as two’s-complement
big-endian binary, using the minimum number of bytes for the value |
-| **`struct`** | Not supported
|
-| **`list`** | Not supported
|
-| **`map`** | Not supported
|
+| Type | Binary serialization
|
+|----------------------|--------------------------------------------------------------------------------------------------------------|
+| **`unknown`** | Not supported
|
+| **`boolean`** | `0x00` for false, non-zero byte for true
|
+| **`int`** | Stored as 4-byte little-endian
|
+| **`long`** | Stored as 8-byte little-endian
|
+| **`float`** | Stored as 4-byte little-endian
|
+| **`double`** | Stored as 8-byte little-endian
|
+| **`date`** | Stores days from the 1970-01-01 in an 4-byte
little-endian int |
+| **`time`** | Stores microseconds from midnight in an 8-byte
little-endian long |
+| **`timestamp`** | Stores microseconds from 1970-01-01 00:00:00.000000
in an 8-byte little-endian long |
+| **`timestamptz`** | Stores microseconds from 1970-01-01 00:00:00.000000
UTC in an 8-byte little-endian long |
+| **`timestamp_ns`** | Stores nanoseconds from 1970-01-01 00:00:00.000000000
in an 8-byte little-endian long |
+| **`timestamptz_ns`** | Stores nanoseconds from 1970-01-01 00:00:00.000000000
UTC in an 8-byte little-endian long |
+| **`string`** | UTF-8 bytes (without length)
|
+| **`uuid`** | 16-byte big-endian value, see example in Appendix B
|
+| **`fixed(L)`** | Binary value
|
+| **`binary`** | Binary value (without length)
|
+| **`decimal(P, S)`** | Stores unscaled value as two’s-complement big-endian
binary, using the minimum number of bytes for the value |
+| **`struct`** | Not supported
|
+| **`list`** | Not supported
|
+| **`map`** | Not supported
|
+| **`variant`** | Not supported
|
Review Comment:
We will need to specify how to handle the `metadata` (concat?)
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