mwish

### Describe the enhancement requested The patch is working on bloomfilter https://github.com/apache/arrow/pull/37400 Currently, the bloom filter user should explicitly know the filter fpp and ndv to create the bloom filter....

GH-40868: [C++][Parquet] Minor: Remove "Experimental" for parquet::RecordReader

7

### Rationale for this change Remove experimental for parquet::internal::RecordReader ### What changes are included in this PR? Remove experimental for parquet::internal::RecordReader ### Are these changes tested? no ### Are there...

Add test file with sorting columns

5

Generate script: (with pyarrow 16.1.0 ) ```python >>> import pyarrow as pa >>> import pyarrow.parquet as pq >>> sorting_columns = (pq.SortingColumn(column_index=0, descending=True, nulls_first=True), pq.SortingColumn(column_index=1, descending=False)) >>> table = pa.table({'a': [None,...

Using intrinsics to optimize counting HyperLogLog trailing bits

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Godbolt link: https://godbolt.org/z/3YPvxsr5s __builtin_ctz would generate shorter code than hand-written loop.

chore: Remove USE_ALIGNED_ACCESS and enhance BYTE_ORDER handling

3

Redis uses lot of USE_ALIGNED_ACCESS as the "fastpath" for ARM like archtecture, however, I think modern compiler can handle this kind of optimization well. So this part of code is...

### Search before asking - [X] I had searched in the [issues](https://github.com/apache/kvrocks/issues) and found no similar issues. ### Motivation Add HyperLogLog for kvrocks * [x] Dense HLL design: https://github.com/apache/kvrocks-website/pull/207 *...

Index Structure Transaction Supports

3

### Search before asking - [X] I had searched in the [issues](https://github.com/apache/kvrocks/issues) and found no similar issues. ### Motivation In databases, transactions is both for external and internal usages. External...

GH-43949: [C++] io::BufferedInput: Fixing the invalid state with SetBufferSize

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### Rationale for this change See https://github.com/apache/arrow/issues/43949 The problem is `Peek` and `Read` both calls `SetBufferSize`, however: 1. `Read` implicit says that, when `SetBufferSize` or read, the previous buffer is...

TSAN: LogUtil::GetLogPrefix data race

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The code in [1] calls `std::localtime`, which might not thread safe [2]. Sample as ``` WARNING: ThreadSanitizer: data race (pid=119895) Write of size 8 at 0x7b04000007d0 by thread T50: #0...

Adding testing page for Dictionary page after non-dict data page in same column-chunk

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The spec doesn't disable the case that: ``` Dict Page | Dict Index Page | Data Page | Dict Index Page ``` We need check: 1. Did we allowing this?...