import type { ConnectionConfig } from './connector.js';
export type SQLParamSpec = {
    name: string;
    position: number;
    literalValue?: unknown;
};
export interface ExpandedSQLParams {
    sql: string;
    params: SQLParamSpec[];
    variables: Record<string, unknown>;
}
export declare function buildParamValues(params: SQLParamSpec[], variables: Record<string, unknown>): unknown[];
/**
 * Expand array-valued template variables into ordinary positional placeholders.
 *
 * DQL blocks keep one business parameter such as `${team_set}` so app filters
 * and review metadata stay readable. At execution time, an array value is
 * rewritten from `IN ($1)` to `IN ($1, $2, ...)` with one bind value per item.
 */
export declare function expandArrayParameters(sql: string, params: SQLParamSpec[], variables: Record<string, unknown>): ExpandedSQLParams;
/**
 * Normalize "$N" placeholders emitted by the compiler to the placeholder syntax
 * expected by each driver.
 *
 * - PostgreSQL: "$1" (no change)
 * - MSSQL: keep "$N" (driver rewrites to "@pN" while binding)
 * - Others (Snowflake/BigQuery/MySQL/SQLite/DuckDB): "?" positional
 */
export declare function normalizeSQLPlaceholders(sql: string, driver: ConnectionConfig['driver']): string;
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