/**
 * sql.ts
 *
 * The `sql` template literal used to perform all the queries.
 * This holds the user facing interface
 */
import { Query, QuerySource, SqlInterface, QueryConfig } from './sql.types';
/**
 * PG package returns "null" values, this efficiently converts all `null`s into `undefined`s
 */
export declare const nullToUndefinedInPlace: (row: Record<string, unknown>) => Record<string, unknown>;
/**
 * Use the intermediary parsing result {@link QuerySource} to compute a {@link QueryConfig}
 * that can be passed to {@link SqlDatabase}'s query function
 */
export declare const toQueryConfigFromSource: <TSqlInterface extends SqlInterface<unknown> = SqlInterface<unknown>, TOriginalResult = TSqlInterface["result"]>(querySource: QuerySource<TSqlInterface, TOriginalResult>, params: TSqlInterface["params"]) => QueryConfig;
/**
 * Compute a {@link QueryConfig} from an sql template that can be passed to {@link SqlDatabase}'s query function
 */
export declare const toQueryConfig: <TSqlInterface extends SqlInterface<unknown> = SqlInterface<unknown>, TOriginalResult = TSqlInterface["result"]>(query: Query<TSqlInterface, TOriginalResult>, params: TSqlInterface["params"]) => QueryConfig;
export declare const toQuery: <TSqlInterface extends SqlInterface<unknown> = SqlInterface<unknown>, TOriginalResult = TSqlInterface["result"]>(sql: string) => Query<TSqlInterface, TOriginalResult>;
/**
 * Sql Query. Pass it the {@link SqlInterface} generated with [@ovotech/potygen-cli](https://github.com/ovotech/potygen/tree/main/packages/cli)
 */
export declare const sql: <TSqlInterface extends SqlInterface<unknown> = SqlInterface<unknown[]>, TOriginalResult = TSqlInterface["result"]>([text]: TemplateStringsArray) => Query<TSqlInterface, TOriginalResult>;