/**
 * Utility functions for schema sync operations
 */
interface ColumnInfo {
    column_name: string;
    data_type: string;
    resolved_type?: string;
    character_maximum_length?: number;
    is_nullable: 'YES' | 'NO';
    column_default?: string;
}
export declare class Utils {
    /**
     * Generate a timestamp string suitable for file/object naming
     * @returns {string} Timestamp in milliseconds since epoch for uniqueness
     */
    static generateTimestamp(): string;
    /**
     * Generate a backup name with timestamp for data preservation
     * @param {string} originalName - The original name to backup
     * @param {string} suffix - Optional suffix (default: 'dropped')
     * @returns {string} Backup name with timestamp
     */
    static generateBackupName(originalName: string, suffix?: string): string;
    /**
     * Generate output filename with timestamp
     * @param {string} sourceSchema - Source schema name
     * @param {string} targetSchema - Target schema name
     * @param {string} prefix - Optional prefix (default: 'schema-sync')
     * @returns {string} Generated filename
     */
    static generateOutputFilename(sourceSchema: string, targetSchema: string, prefix?: string): string;
    /**
     * Format column definition for SQL generation
     * @param {ColumnInfo} column - Column object with properties
     * @param {string} targetSchema - Target schema name for sequence references
     * @returns {string} Formatted column definition
     */
    static formatColumnDefinition(column: ColumnInfo, targetSchema?: string): string;
    /**
     * Format data type with length specification
     * @param {ColumnInfo} column - Column object
     * @returns {string} Formatted data type
     */
    static formatDataType(column: ColumnInfo): string;
    /**
     * Generate comment for manual review items
     * @param {string} type - Type of item (table, column, function, etc.)
     * @param {string} name - Name of the item
     * @param {string} reason - Reason for manual review
     * @returns {string} Formatted comment
     */
    static generateManualReviewComment(type: string, name: string, reason: string): string;
    /**
     * Generate section header for script output
     * @param {string} title - Section title
     * @returns {Array<string>} Array of header lines
     */
    static generateSectionHeader(title: string): string[];
    /**
     * Generate script footer
     * @returns {Array<string>} Array of footer lines
     */
    static generateScriptFooter(): string[];
}
export {};
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