/**
 * Performance testing script to demonstrate the impact of database indexes
 *
 * This script can be used to measure query performance before and after
 * index creation to validate the performance improvements.
 */
interface PerformanceTestConfig {
    connectionString: string;
    testDataSize: number;
    iterations: number;
}
interface PerformanceResult {
    operation: string;
    avgTimeMs: number;
    minTimeMs: number;
    maxTimeMs: number;
    iterations: number;
    scenario: 'without_indexes' | 'with_indexes';
}
interface PerformanceComparison {
    operation: string;
    withoutIndexes: PerformanceResult;
    withIndexes: PerformanceResult;
    improvementFactor: number;
    improvementPercentage: number;
}
export declare class PostgresPerformanceTest {
    private store;
    private memory;
    private dbOps;
    private config;
    constructor(config: PerformanceTestConfig);
    init(): Promise<void>;
    cleanup(): Promise<void>;
    resetDatabase(): Promise<void>;
    dropPerformanceIndexes(): Promise<void>;
    createDefaultIndexes(): Promise<void>;
    seedTestData(): Promise<void>;
    measureOperation(name: string, operation: () => Promise<any>, scenario: 'without_indexes' | 'with_indexes'): Promise<PerformanceResult>;
    runPerformanceTests(scenario: 'without_indexes' | 'with_indexes'): Promise<PerformanceResult[]>;
    runComparisonTest(): Promise<PerformanceComparison[]>;
    analyzeCurrentQueries(): Promise<void>;
    printComparison(comparisons: PerformanceComparison[]): void;
    printResults(results: PerformanceResult[]): void;
    checkIndexes(): Promise<void>;
}
export {};
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