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Posted to issues@paimon.apache.org by "lszskye (via GitHub)" <gi...@apache.org> on 2026/05/25 03:26:00 UTC

[PR] feat: introduce basic data types including decimal, blob and timestamp [paimon-cpp]

lszskye opened a new pull request, #10:
URL: https://github.com/apache/paimon-cpp/pull/10

   ### Purpose
   Introduce the basic data types module including:
   
   - **Decimal**: A 128-bit decimal type compatible with Java Paimon's `DecimalData`. 
   - **Blob**: A binary large object type that supports reading from file paths or blob descriptors. 
   - **Timestamp**: An immutable timestamp type representing milliseconds + nanos-of-millisecond since epoch.
   - **Logger**: A pluggable logging framework with a default glog-based adapter, supporting custom logger registration and thread-safe initialization.
   
   Internal utilities added:
   - `BlobDescriptor`: Serializable descriptor for blob references with versioned binary format (v1/v2 compatible with Java).
   - `BlobDefs`: Constants for blob file format (magic number, header layout, etc.).
   - `BlobUtils`: Helper functions for separating blob/non-blob fields in Arrow schemas and arrays.
   
   ### Tests
   - `BlobTest`
   - `BlobDescriptorTest`
   - `BlobUtilsTest`
   - `DecimalTest`
   - `TimestampTest`
   - `LoggerTest`
   
   ### API and Format
   
   This change adds new public headers under `include/paimon/data/`:
   - `blob.h` — `Blob` class
   - `decimal.h` — `Decimal` class
   - `timestamp.h` — `Timestamp` class
   
   And extends `include/paimon/logging.h` with the `Logger` interface.
   
   No existing API or storage format is changed.


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Re: [PR] feat: introduce basic data types including decimal, blob and timestamp [paimon-cpp]

Posted by "leaves12138 (via GitHub)" <gi...@apache.org>.
leaves12138 merged PR #10:
URL: https://github.com/apache/paimon-cpp/pull/10


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