cmu-db/bustub
Feb 2026 – Feb 2026
1 Month active
Languages Used
C++
Technical Skills
C++algorithm designdata structuresunit testing
Joseph Amirtharaj
PROFILE
Joseph Amirtharaj
Joe contributed to the cmu-db/bustub repository by enhancing tombstone handling within the BPlusTree data structure. He introduced a NumTombs template parameter to the LeafPage type alias, enabling more robust management of tombstones and reducing the risk of index inconsistencies. Joe also improved the TombstoneCoalesceTest by making it less dependent on page IDs and ensuring that index correctness is thoroughly verified. His work involved C++ and focused on algorithm design, data structures, and unit testing. These targeted changes improved the reliability and maintainability of tombstone coalescing, addressing a nuanced aspect of database index correctness.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
1Total
Bugs
0
Commits
1
Features
1
Lines of code
88
Activity Months1
Your Network
11 peopleWork History
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 — cmu-db/bustub: Hardened tombstone handling in BPlusTree and improved test reliability around tombstone coalescing. Delivered a TombstoneCoalescing and BPlusTree LeafPage Tombstone Enhancement by introducing a NumTombs template parameter in the LeafPage type alias, enabling robust tombstone management. Updated TombstoneCoalesceTest to depend less on page IDs and to verify index correctness, reinforcing correctness of indexing under tombstone coalescing. Minor formatting adjustments were applied to improve code readability and maintainability. These changes reduce risk of tombstone-related index inconsistencies and contribute to more reliable data structures in production.
1 Commits • 1 Features
Feb 1, 2026February 2026 — cmu-db/bustub: Hardened tombstone handling in BPlusTree and improved test reliability around tombstone coalescing. Delivered a TombstoneCoalescing and BPlusTree LeafPage Tombstone Enhancement by introducing a NumTombs template parameter in the LeafPage type alias, enabling robust tombstone management. Updated TombstoneCoalesceTest to depend less on page IDs and to verify index correctness, reinforcing correctness of indexing under tombstone coalescing. Minor formatting adjustments were applied to improve code readability and maintainability. These changes reduce risk of tombstone-related index inconsistencies and contribute to more reliable data structures in production.
February 2026
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Quality Metrics
Correctness80.0%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage40.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
C++algorithm designdata structuresunit testing
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