mapleFU opened a new issue, #38355:
URL: https://github.com/apache/arrow/issues/38355
### Describe the usage question you have. Please include as many useful
details as possible.
I've find `arrow::internal::BitWriter` and
`arrow::internal::FirstTimeBitWriter` in our repo. The
`arrow::internal::FirstTimeBitWriter` has some descriptions:
```
// Like BitmapWriter, but any bit values *following* the bits written
// might be clobbered. It is hence faster than BitmapWriter, and can
// also avoid false positives with Valgrind.
```
But actually I didn't know what it actually means. When should I use
`FirstTimeBitWriter` and when should I use `BitWriter`? Is there any
materialize for this?
### Component(s)
C++
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