Table of contents

const ClickHouse = require("@apla/clickhouse");
import { table, AnyPrintable, RowsArray } from "../../src";

With a DB connector

const db = new ClickHouse({
    host: "localhost",
    port: 8124,
    user: "default",
    password: "",
    dataObjects: true,
});

const runS = async (q: string): Promise<any[]> =>
    db.querying(q).then((it: any) => it.data);

We can implement a version that is aware of the types

const run = <T extends AnyPrintable>(it: T): Promise<RowsArray<T>> =>
    runS(it.stringify());

Then, with some tables

const t1 = table(["x", "y"], "t1");
await runS(`DROP TABLE IF EXISTS t1`);
await runS(`CREATE TABLE IF NOT EXISTS t1(x Int64, y Int64) ENGINE = Memory`);
await runS(`INSERT INTO t1 VALUES(1,2)`);

We can run queries

const value = await run(t1.selectStar());
value;

[{ "x": "1", "y": "2" }]

Typescript knows the identifiers

value.map((it) => it.x);

//@ts-expect-error
value.map((it) => it.u);

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This document used eval-md