import { type Type } from "../infer/types.js";
import type { FnRule } from "../infer/functions.js";
export declare const DUCKDB_ALIASES: Record<string, string>;
export declare function duckdbParseType(text: string): Type;
/** DuckDB literal forms — sql/data_types/literal_types.md: integers without a decimal point are
 *  INTEGER-family; a decimal point makes a DECIMAL; E-notation makes a DOUBLE; strings are
 *  VARCHAR. Underscore digit separators allowed. */
export declare function duckdbLiteral(text: string): Type;
export declare const DUCKDB_FUNCTION_RETURNS: Record<string, FnRule>;