Inside SQLite’s Frontend: How the WHERE Clause Drives Optimization
SMRTR summary
SQLite's WHERE clause optimization breaks conditions into AND-connected terms to maximize index usage. Multi-column indexes follow strict left-to-right rules: leftmost columns must use equality/IN operators, with only the rightmost allowing inequalities. OR conditions disable straightforward optimization but can be rewritten using UNION for better performance.
SMRTR provides this summary for quick context. The original article belongs to Dev.to.
Read the original article