import * as elements from '@yellicode/elements';
export interface SqlColumnSpecProvider {
    /**
    * The maximum size, in bytes, of the data within the column. Set to -1 to specifify a maximum length.
    */
    getLength(sqlTypeName: string, property?: elements.Property): number | null;
    getPrecision(sqlTypeName: string, property?: elements.Property): number | null;
    getScale(sqlTypeName: string, property?: elements.Property): number | null;
    isRelationship(property: elements.Property): boolean;
}
export declare class DefaultSqlColumnSpecProvider implements SqlColumnSpecProvider {
    getLength(sqlTypeName: string, property?: elements.Property): number | null;
    protected requiresLength(sqlTypeName: string, property?: elements.Property): boolean;
    getPrecision(sqlTypeName: string, property?: elements.Property): number | null;
    getScale(sqlTypeName: string, property?: elements.Property): number | null;
    isRelationship(property: elements.Property): boolean;
}