Hello, I have a query where Postgres and DuckDB handle aggregations differently. Our understanding is that this is a case where the SQL standard is vague and wanted to ask what semantics you mean to ...
Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Jinsong Yu shares deep architectural insights ...
At the Web3 Summit in Berlin today, SubQuery made a major announcement, unveiling its newest innovation: decentralized AI inference hosting. In a live demonstration, SubQuery’s COO, James Bayly, ...
1️) Scalar Subquery in SELECT: SELECT e.emp_id, e.emp_name, e.salary, (SELECT ROUND(AVG(salary), 2) FROM employees WHERE dept_id = e.dept_id) AS dept_avg_salary FROM employees e; 2️) Correlated ...
Abstract: Expressing complex OLAP queries involving nested expressions using normal group-by, aggregation, and joins can be extremely difficult. We propose a technique that translates nested query ...
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