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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2020/06/30 13:42:11 UTC
[GitHub] [arrow] wesm commented on a change in pull request #7535: ARROW-9222: [Format][DONOTMERGE] Columnar.rst changes for removing validity bitmap from union types
wesm commented on a change in pull request #7535:
URL: https://github.com/apache/arrow/pull/7535#discussion_r447691975
##########
File path: docs/source/format/Columnar.rst
##########
@@ -566,33 +572,28 @@ having the values: ``[{f=1.2}, null, {f=3.4}, {i=5}]``
::
* Length: 4, Null count: 1
- * Validity bitmap buffer:
- |Byte 0 (validity bitmap) | Bytes 1-63 |
- |-------------------------|-----------------------|
- |00001101 | 0 (padding) |
-
* Types buffer:
|Byte 0 | Byte 1 | Byte 2 | Byte 3 | Bytes 4-63 |
|---------|-------------|----------|----------|-------------|
- | 0 | unspecified | 0 | 1 | unspecified |
+ | 0 | 0 | 0 | 1 | unspecified |
* Offset buffer:
|Bytes 0-3 | Bytes 4-7 | Bytes 8-11 | Bytes 12-15 | Bytes 16-63 |
|----------|-------------|------------|-------------|-------------|
- | 0 | unspecified | 1 | 0 | unspecified |
+ | 0 | 1 | 2 | 0 | unspecified |
* Children arrays:
* Field-0 array (f: float):
* Length: 2, nulls: 0
Review comment:
Yes
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