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ARROW-1416: Clarify memory layout documentation #998

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ARROW-1416: Clarify memory layout documentation #998

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6 changes: 3 additions & 3 deletions format/Layout.md
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Original file line number Diff line number Diff line change
Expand Up @@ -206,7 +206,7 @@ does not need to be adjacent in memory to the values buffer.
### Example Layout: Int32 Array
For example a primitive array of int32s:

[1, 2, null, 4, 8]
[1, null, 2, 4, 8]

Would look like:

Expand All @@ -216,13 +216,13 @@ Would look like:

|Byte 0 (validity bitmap) | Bytes 1-63 |
|-------------------------|-----------------------|
| 00011011 | 0 (padding) |
| 00011101 | 0 (padding) |

* Value Buffer:

|Bytes 0-3 | Bytes 4-7 | Bytes 8-11 | Bytes 12-15 | Bytes 16-19 | Bytes 20-63 |
|------------|-------------|-------------|-------------|-------------|-------------|
| 1 | 2 | unspecified | 4 | 8 | unspecified |
| 1 | unspecified | 2 | 4 | 8 | unspecified |
```

### Example Layout: Non-null int32 Array
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