How does contextual information within queries assist developers?

Contextual information within queries is essential for developers as it directly contributes to performance optimization. When developers include contextual elements in their queries, they can better understand how data is being accessed and utilized. This understanding allows them to analyze which queries are efficient and which may be causing bottlenecks.

By answering questions about performance, contextual information can highlight areas where improvements are needed, leading to faster, more efficient applications. This data is particularly valuable when dealing with large datasets or complex join operations, where performance can significantly impact the user experience.

The other options, while relevant to application development, do not specifically tie to the primary benefit of using contextual information in queries as they relate more to user interface design, code complexity, or user information without providing a direct link to performance analysis.