import { ICompleterItem } from '../../code-editor/services/code-editor-completer';
import { IAutocompleter } from './types';
import { QueryContext, TableInfo } from '../sql-context-evaluator';
import { IDbInfoConfig } from '../db-info';
export declare class SqlAutocompleter implements IAutocompleter {
    private readonly config;
    private readonly type?;
    private prefix;
    private lastCompleters;
    constructor(config: IDbInfoConfig, type?: string);
    /**
     * Extract columns and tables from the queryContext
     * @param {QueryContext} queryContext
     * @return {ICompleterItem[]}
     */
    getCompletionItemsFromQueryContext(queryContext: QueryContext): Promise<ICompleterItem[]>;
    getCompletionItemsFromQueryContextColumn(queryContext: QueryContext): Promise<any>;
    translateAndGetQueryContextColumns(tables: TableInfo[], prefix?: string): Promise<any>;
    private extractColumnsFromTable;
    /**
     * Extract the tables from the queryContext
     * @param {TableInfo[]} tables
     * @return {ICompleterItem[]}
     */
    private getQueryContextTables;
    /**
     * Extract the columns from the queryContext
     * @param {TableInfo[]} tables
     * @return {Promise<ICompleterItem[]>}
     */
    private getQueryContextColumns;
    /**
     * Extract the columns from the table
     * @param {TableInfo} table
     * @return {Promise<TableInfo>}
     */
    private extractTableColumns;
    private createCompleterItem;
    private getEntitiesCompletersFromDbBasedOnPrefix;
    private searchEntitiesFromDb;
}