refactor: enhance list indexing and full-text search capabilities by robfrank · Pull Request #2720 · ArcadeData/arcadedb (original) (raw)
Summary of Changes
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This pull request significantly enhances the database's indexing and search capabilities, particularly for multi-value fields. It introduces robust support for LIKE and MATCHES operators against list and iterable properties, ensuring more flexible and accurate querying. Alongside these functional improvements, the PR modernizes the codebase by adopting newer Java features, improving type safety, and streamlining schema and index management, leading to a more maintainable and performant system.
Highlights
- Enhanced Multi-Value SQL Operators: The
LikeOperatorandMatchesConditionnow correctly process multi-value types (such as lists and iterables) on the left side, allowing them to match any contained value within the collection, rather than failing or matching only the outer object. This significantly improves query flexibility for collections. - Modernized MultiValue Utilities: Utility methods within the
MultiValueclass have been refactored to leverage modern Java features likeList.getFirst()andList.getLast(), and iterator handling has been streamlined for improved readability and performance. - Improved Type Safety: The
IndexFactoryHandlerinterface has been updated to specify generic parameters for theIndexBuilder, which reduces the risk of runtime type errors and enhances overall type safety. - Streamlined Schema and Index Management: The usage of the
NULL_STRATEGYenum inLocalSchemahas been simplified by directly referencing it, which improves configuration handling and clarifies method signatures throughout the schema management code. - Refined Indexing Logic: The
DocumentIndexernow uses Java 16+ pattern matching for list type checks, ensuring more robust error handling and clearer code. Additionally, theSelectExecutionPlannerhas been enhanced to accurately strip index modifiers (like 'by key', 'by value', 'by item') from field names for more precise index field matching. - Updated Imports and Code Style: Several files have received updates to use explicit imports and modern Java syntax, contributing to better code maintainability and clarity across the codebase.
- Expanded Test Coverage: New test cases have been added to
ListIndexByItemTestto verify full-text and LIKE search functionality on list items, andLSMTreeFullTextIndexTesthas been refactored for improved clarity and consistency. Using Gemini Code Assist
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