Receive daily AI-curated summaries of engineering articles from top tech companies worldwide.
Endigest AI Core Summary
GitHub Issues search now supports nested queries with logical AND/OR operators and parentheses, replacing the previous flat query structure.
•The old system parsed queries into a flat list implicitly joined by AND; the new system uses an Abstract Syntax Tree (AST) via the parslet parsing library with a PEG grammar.
•A new search module (ConditionalIssuesQuery) replaced the existing one (IssuesQuery) while maintaining backward compatibility with existing query formats.
•AST traversal maps nested boolean logic to Elasticsearch's bool query, with AND/OR/NOT mapping to must/should/should_not clauses.
•Backward compatibility was validated by dark-shipping: running 1% of live queries through both systems in parallel and logging differences.
•
The feature handles ~2000 QPS (160M queries/day), requiring careful performance and correctness validation before full rollout.
This summary was automatically generated by AI based on the original article and may not be fully accurate.
GitHub
Meta
Dropbox
Spring
Google Cloud