fix: resolve NOTUNIQUE index issue with equals operator in large data… by robfrank · Pull Request #2859 · ArcadeData/arcadedb (original) (raw)
Summary of Changes
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This pull request addresses a critical bug affecting the equality operator on NOTUNIQUE string indexes within large datasets. The fix ensures that exact matches are correctly retrieved after index creation and compaction by using the appropriate index lookup method. A new, robust regression test has been introduced to validate the solution and prevent future regressions, particularly in scenarios involving hierarchical compaction.
Highlights
- Bug Fix: NOTUNIQUE Index Equality Operator: The core issue where the
=operator on NOTUNIQUE string indexes failed to return correct results on large datasets after index creation and compaction has been resolved. The fix involves changing the index query logic fromindex.range(...)toindex.get(values)for equality comparisons inFetchFromIndexStep.java. - New Regression Test: A comprehensive regression test,
Issue2757NotUniqueIndexEqualsOperatorTest.java, has been added. This test specifically reproduces the bug by creating a large dataset, adding a NOTUNIQUE index, and verifying that the=operator now correctly finds records both before and after index creation and compaction. It also confirms that theLIKEoperator remains unaffected. Using Gemini Code Assist
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