`mini\Database\AstOptimizer` class

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Documentation

Optimizes SQL AST for correct evaluation and performance

Key transformations:

Rewrites negated predicates using De Morgan's laws
Ensures correct three-valued logic (NULL handling)

Methods (3)

public `optimize()`

Optimize an AST node and its children

private `rewriteNegations()`

Rewrite negated predicates using De Morgan's laws

private `flipComparison()`

Flip a comparison operator for NOT transformation

Source

src/Database/AstOptimizer.php:23-226