/// <amd-module name="@dataform/api/dbadapters/index" />
import { Credentials } from "@dataform/api/commands/credentials";
import { dataform } from "@dataform/protos";
export declare type OnCancel = (handleCancel: () => void) => void;
export declare const CACHED_STATE_TABLE_TARGET: dataform.ITarget;
export interface IExecutionResult {
    rows: any[];
    metadata: dataform.IExecutionMetadata;
}
export interface IDbAdapter {
    execute(statement: string, options?: {
        onCancel?: OnCancel;
        interactive?: boolean;
        maxResults?: number;
    }): Promise<IExecutionResult>;
    evaluate(statement: string): Promise<dataform.IQueryEvaluationResponse>;
    tables(): Promise<dataform.ITarget[]>;
    table(target: dataform.ITarget): Promise<dataform.ITableMetadata>;
    preview(target: dataform.ITarget, limitRows?: number): Promise<any[]>;
    prepareSchema(database: string, schema: string): Promise<void>;
    prepareStateMetadataTable(): Promise<void>;
    persistStateMetadata(actions: dataform.IExecutionAction[]): Promise<void>;
    persistedStateMetadata(): Promise<dataform.IPersistedTableMetadata[]>;
    setMetadata(action: dataform.IExecutionAction): Promise<void>;
    deleteStateMetadata(actions: dataform.IExecutionAction[]): Promise<void>;
    close(): Promise<void>;
}
export interface IDbAdapterClass<T extends IDbAdapter> {
    create: (credentials: Credentials) => Promise<T>;
}
export declare function register(warehouseType: string, c: IDbAdapterClass<IDbAdapter>): void;
export declare function create(credentials: Credentials, warehouseType: string): Promise<IDbAdapter>;