This is a performance testing framework for Spark SQL in Apache Spark 2.2+. The framework contains twelve benchmarks that can be executed in local mode. They are organized into three classes and ...

A timestamp bug that looked harmless and wasn’t I was testing something locally. Everything worked. Data saved. No errors. Then I checked the database timestamp. 16:14 My system clock said 11:14 AM.

access_token_issued_at timestamp DEFAULT NULL, access_token_expires_at timestamp DEFAULT NULL, ...

Agent Skills 本质上是一类 SKILL.md 文件。它们可以扩展 Claude Code 和其他 AI 编程助手的能力。安装一个 skill，就相当于给 agent 增加了一份专门的工作手册。 Agent Skills 本质上是一类 SKILL.md 文件。 它们可以扩展 Claude Code 和其他 AI 编程助手的能力。安装一个 skill，就 ...

Abstract: User-Defined-Functions (UDFs) are a pivotal feature in modern DBMS, enabling the extension of native DBMS functionality with custom logic. However, the integration of UDFs into query ...

前言 移动应用程序运行在高度不可预测的环境中。用户期望应用程序能够瞬间加载、支持离线使用、实时更新，并且能在蜂窝网络连接时断时续的情况下完整地保存数据。 虽然 Model-View-Presenter（MVP）和 CLEAN ...

FlureeDB acts as a secure context layer fit for autonomous systems: pull from many data sources wherever they live, answer ...

Google Cloud is introducing the Open Knowledge Format (OKF), a new spec that standardizes knowledge as Markdown files and makes it portable across systems. It takes the "LLM wiki" pattern recently ...

作者| 阿里云消息团队在 AI 驱动的数据应用场景中，企业越来越需要一套同时支撑实时消费、历史沉淀与多引擎复用的数据底座。Kafka、Iceberg 开放表格式与对象存储的组合，正成为流数据入湖的重要方向。但传统依赖 Flink、Spark 等外部 ...

FoodPharma, headquartered in Santa Fe Springs, California, is a leading contract developer and manufacturer of functional food delivery systems. The company brings more than a century of confectionery ...