mapleFU commented on PR #37940:
URL: https://github.com/apache/arrow/pull/37940#issuecomment-1751612340
I generate data using the code below, and use zstd default to compress it
with 10000 values.
```
if i % 4 == 0:
return i * -400;
return i * 4;
```
The plain size is 40000, after compression it's about 15000bytes.
The delta bit pack with previous code is a bit greater than 40000, but after
compression, it's 10000bytes. And after change, the size before compression is
28000bytes, after compression is 27000bytes.
However I think the patch is great, at least we fix a bad problem here...🤔
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