/** A single index recommendation */
export interface IndexRecommendation {
    /** CREATE INDEX DDL statement */
    ddl: string;
    /** Columns covered */
    columns: string[];
    /** Table the index applies to */
    table: string;
    /** Short reason why this index helps */
    reason: string;
}
/** Query rewrite suggestion */
export interface QueryRewrite {
    /** Improved SQL text */
    sql: string;
    /** Explanation of what changed */
    explanation: string;
}
/** Full AI analysis result */
export interface OptimizationResult {
    /** Short label for the root issue */
    issue: string;
    /** Human-readable improvement suggestion */
    suggestion: string;
    /** Optimized query / code snippet */
    code: string;
    /** Narrative estimate of improvement */
    expectedImprovement: string;
    /** Estimated percentage reduction in duration (0-100) */
    estimatedGainPct: number;
    /** Specific index recommendations */
    indexRecommendations: IndexRecommendation[];
    /** Optional alternative query rewrites */
    queryRewrites?: QueryRewrite[];
    /** Severity the AI assessed (independent of threshold) */
    severity: 'critical' | 'high' | 'medium' | 'low';
    /** Name of the model that generated this result */
    model: string;
    /** ISO timestamp of when the AI responded */
    analyzedAt: string;
    /** Whether the result came from cache */
    fromCache?: boolean;
}
/** Cached entry */
export interface CachedOptimization {
    result: OptimizationResult;
    cachedAt: number;
}
//# sourceMappingURL=ai.d.ts.map