import { entityKind } from 'drizzle-orm/entity';
import type { MigrationConfig, MigrationMeta } from 'drizzle-orm/migrator';
import { PgDialect, type PgColumn, type PgTable } from 'drizzle-orm/pg-core';
import { SQL, type DriverValueEncoder, type QueryTypingsValue } from 'drizzle-orm';
import type { BuildRelationalQueryResult } from 'drizzle-orm/relations';
import { type QueryWithTypings } from 'drizzle-orm/sql/sql';
/**
 * Query typing for params bound to a non-array column. DuckDB sessions never
 * coerce these params from Postgres array literal strings.
 * @internal
 */
export declare const DUCKDB_SCALAR_COLUMN_TYPING: QueryTypingsValue;
/**
 * DuckLake has no sequences, primary keys or indexes, so a journal in a
 * DuckLake catalog is a plain table. pg_duckdb and other clients without
 * duckdb_databases() use the regular journal.
 */
type MigrationSession = {
    execute(query: SQL): PromiseLike<unknown>;
    all<T>(query: SQL): PromiseLike<T[]>;
    transaction<T>(callback: (tx: {
        execute(query: SQL): PromiseLike<unknown>;
    }) => Promise<T>): Promise<T>;
};
export declare class DuckDBDialect extends PgDialect {
    private options;
    static readonly [entityKind]: string;
    private savepointsSupported;
    constructor(options?: ConstructorParameters<typeof PgDialect>[0] & {
        qualifyRawJoinColumns?: boolean;
        decimalMode?: 'number' | 'string';
    });
    /**
     * @deprecated Pg JSON/JSONB params now throw while the query is built. This
     * method is a no-op and will be removed in the next major version.
     */
    resetPgJsonFlag(): void;
    /**
     * @deprecated Pg JSON/JSONB params now throw while the query is built. This
     * method is a no-op and will be removed in the next major version.
     */
    markPgJsonDetected(): void;
    /**
     * @deprecated Pg JSON/JSONB params now throw while the query is built. This
     * method is a no-op and will be removed in the next major version.
     */
    assertNoPgJsonColumns(): void;
    escapeName(name: string): string;
    /**
     * Check if savepoints are known to be unsupported for this dialect instance.
     */
    areSavepointsUnsupported(): boolean;
    /**
     * Mark that savepoints are supported for this dialect instance.
     */
    markSavepointsSupported(): void;
    /**
     * Mark that savepoints are not supported for this dialect instance.
     */
    markSavepointsUnsupported(): void;
    migrate(migrations: MigrationMeta[], session: MigrationSession, config: MigrationConfig | string): Promise<void>;
    prepareTyping(encoder: DriverValueEncoder<unknown, unknown>): QueryTypingsValue;
    buildRelationalQueryWithoutPK(config: Parameters<PgDialect['buildRelationalQueryWithoutPK']>[0]): BuildRelationalQueryResult<PgTable, PgColumn>;
    sqlToQuery(sqlObj: SQL, invokeSource?: 'indexes' | undefined): QueryWithTypings;
}
export {};