Hacker

How to Write Complex Queries in Apache Spark SQL Using CTE (WITH Clause)

Apache Spark SQL uses SQL capabilities to process large-scale structured data. One powerful feature in modern SQL is the WITH clause, supported in Spark SQL as Common Table Expressions (CTE). CTE ...
The New York Times

The 39 Best Gifts for Your Mother-in-Law

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Samantha Schoech and Mari Uyehara Even though so many mothers-in-law are truly ...
GitHub

Query: converter from bool used in predicate without comparison fails on sqlite (and other non-sql server backends?)

Successfully merging a pull request may close this issue. Fix to #30326 - Query: converter from bool used in predicate without comparison fails on sqlite (and other non-sql server backends?) ...
acm.org

Scalable Computation of High-Order Optimization Queries

Constrained optimization problems are at the heart of significant applications in a broad range of domains, including finance, transportation, manufacturing, and healthcare. Modeling and solving these ...
GitHub

path-expressions-specifying-predicates.md

As described in the topic, [Path Expressions in XQuery](../xquery/path-expressions-xquery.md), an axis step in a path expression includes the following components ...
IEEE

Complex SQL Predicates as Quantifiers

Abstract: We propose a logical framework to analyze complex predicates (those involving a subquery) in SQL. We propose a new operator in the relational algebra for handling such predicates, and study ...
IEEE

Set Predicates in SQL: Enabling Set-Level Comparisons for Dynamically Formed Groups

Abstract: In data warehousing and OLAP applications, scalar-level predicates in SQL become increasingly inadequate to support a class of operations that require set-level comparison semantics, i.e., ...