import type { SchemaMetadata, ValidationResult } from '../types';
/**
 * Validate if an export schema is compatible with target database schema
 */
export declare class SchemaValidator {
    private errors;
    private warnings;
    /**
     * Validate import compatibility
     */
    validate(exportSchema: SchemaMetadata, targetSchema: SchemaMetadata): ValidationResult;
    /**
     * Validate table compatibility
     */
    private validateTables;
    /**
     * Validate column compatibility
     */
    private validateTableColumns;
    /**
     * Validate index compatibility (warnings only)
     */
    private validateTableIndexes;
    /**
     * Check if two types are compatible for import
     */
    private areTypesCompatible;
}
/**
 * Validate that export file has correct structure
 */
export declare function validateExportStructure(data: unknown): {
    valid: boolean;
    errors: string[];
};
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