export declare const POSTGRES_IDENTIFIER_MAX_LENGTH = 63;
export declare function truncateIdentifier(value: string, maxLength?: number): string;
/**
 * Builds a constraint name with an optional schema prefix, truncated to fit
 * within Postgres' identifier length limit.  The result is always lowercased
 * because PostgreSQL folds unquoted identifiers to lowercase when storing them
 * in system catalogs (pg_constraint.conname, pg_indexes.indexname, etc.).
 * Without this normalisation, runtime lookups that compare a mixed-case name
 * against the catalog would silently fail.
 */
export declare function buildConstraintName({ baseName, schemaName, maxLength, }: {
    baseName: string;
    schemaName?: string;
    maxLength?: number;
}): string;
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