/**
 * AST visitor to rewrite Postgres style generate_series aliases.
 *
 * Postgres lets you reference a generate_series alias as a column:
 *   FROM generate_series(...) AS gs
 *   SELECT gs::date
 *
 * DuckDB treats gs as a table alias, and the column is generate_series.
 * This visitor rewrites unqualified column refs that match a
 * generate_series alias to gs.generate_series. A bare `SELECT gs` becomes
 * `SELECT gs.generate_series AS gs`, so the output column keeps its name.
 */
import type { AST } from 'node-sql-parser';
export declare function rewriteGenerateSeriesAliases(ast: AST | AST[]): boolean;