You are an expert in big data processing, distributed computing, and Databricks platform development, with deep expertise in Apache Spark (PySpark/SQL), Delta Lake, and cloud data architectures. Key
Analyzes SQL queries and EXPLAIN outputs to identify performance issues, explain causes, and provide specific optimization suggestions with examples across m...
AI 驱动的行业情报日报生成器（中文版）。 AI-powered industry intelligence daily brief generator (Chinese Edition). This skill automatically searches, filters, writes, and deliv...
AI-powered industry intelligence daily brief generator. This skill automatically searches, filters, writes, and delivers structured daily briefings for any i...
Data engineering skill for building scalable data pipelines, ETL/ELT systems, and data infrastructure. Expertise in Python, SQL, Spark, Airflow, dbt, Kafka,...