/**
 * E2E Test Runner - PostgreSQL Adapter
 *
 * Database operations using pg pool
 */
import type { AdapterConfig, AdapterContext, AdapterStepResult, Logger } from '../types';
import { BaseAdapter } from './base.adapter';
import { type BaseAssertion } from '../assertions/assertion-runner';
export interface PostgreSQLAssertion extends BaseAssertion {
    row?: number;
    column: string;
}
export declare class PostgreSQLAdapter extends BaseAdapter {
    private pool;
    constructor(config: AdapterConfig, logger: Logger);
    get name(): string;
    connect(): Promise<void>;
    disconnect(): Promise<void>;
    execute(action: string, params: Record<string, unknown>, ctx: AdapterContext): Promise<AdapterStepResult>;
    healthCheck(): Promise<boolean>;
    /**
     * Execute SQL without returning results
     */
    private executeSQL;
    /**
     * Query SQL and return all rows
     */
    private querySQL;
    /**
     * Query SQL and return exactly one row
     */
    private queryOneSQL;
    /**
     * Count rows matching query
     */
    private countSQL;
    /**
     * Run assertions on query results using shared runner
     */
    private runAssertions;
    /**
     * Tagged template literal for execute
     */
    executeTemplate(strings: TemplateStringsArray, ...values: unknown[]): Promise<void>;
    /**
     * Tagged template literal for query
     */
    queryTemplate(strings: TemplateStringsArray, ...values: unknown[]): Promise<Record<string, unknown>[]>;
    /**
     * Tagged template literal for queryOne
     */
    queryOneTemplate(strings: TemplateStringsArray, ...values: unknown[]): Promise<Record<string, unknown>>;
    /**
     * Convert tagged template to parameterized query
     */
    private taggedToQuery;
}
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