Creating an index is common among developers, but understanding how the index works at a data structure level is crucial.
Different data structures in indexing excel at various operations such as range scans, exact-match lookups, full-text search, or geospatial queries.
The choice of index structure significantly impacts query planning, I/O patterns, and memory consumption.
This article delves into the internal data structures powering database indexes, explaining their workings, problem-solving capabilities, performance areas, and limitations.