2 个仓库
Awesome GitHub RepositoriesHash Join Implementations
Physical query operators that combine two relations by building a hash table on one and probing it with the other.
Distinct from Custom Hashing Implementations: The candidates focus on the internal hashing functions and data structures (Custom Hashing, Linear Hashing) rather than the relational join operator logic.
Explore 2 awesome GitHub repositories matching data & databases · Hash Join Implementations. Refine with filters or upvote what's useful.
Awesome Hash Join Implementations GitHub Repositories
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- oceanbase/miniob
oceanbase/miniob
4,318在 GitHub 上查看MiniOB is an open-source educational relational database kernel designed for learning the internals of database systems. It implements a dual-engine storage architecture combining B+ Tree and LSM-Tree, supports SQL parsing and query execution, and provides transactional processing with multi-version concurrency control. The system communicates with clients using the MySQL wire protocol and includes a vector database extension for storing and querying high-dimensional vectors. The project distinguishes itself through its comprehensive coverage of core database concepts in a single, learnable c
Combine rows from two tables by building a hash table on one table and probing it with rows from the other.
C++classroomcplusplusdatabase - facebookincubator/velox
facebookincubator/velox
4,155在 GitHub 上查看Velox 是一个高性能 C++ 查询执行引擎和列式数据处理库。它作为一个用于实现分析型查询引擎的可组合框架，提供了向量化表达式评估器和数据管理系统工具包。 该项目以使用向量化列式执行和基于 Arena 的内存分配来处理大规模数据集而著称。它具有专门的优化功能，如广播连接表缓存、动态过滤器下推和字典编码，以减少内存开销并加速分析读取。 该引擎涵盖了广泛的分析能力，包括实现哈希连接、合并连接和半连接，以及多阶段并行聚合和窗口函数计算。它提供了用于列式内存存储、Parquet 数据解码以及与云存储集成的原语。 通过用于自定义标量和聚合函数的函数注册系统提供可扩展性，并提供高级绑定以将 C++ 逻辑连接到 Python。
Combines datasets based on matching keys using partitioned or broadcast distribution strategies.
C++
