xtwoend/hyperf-clickhouse

Clickhouse db for hyperf

dev-master / 1.0.x-dev 2022-05-22 02:22 UTC

Requires

• the-tinderbox/clickhouse-builder: ^5.3

MIT

• Abdul Hafidz A

README

Adapter to Hyperf framework of the most popular libraries:

• https://github.com/the-tinderbox/ClickhouseBuilder - good query builder

Features

No dependency

More: https://github.com/smi2/phpClickHouse#features

Prerequisites

• PHP 7.1
• Hyperf PHP
• Clickhouse server

Installation

1. Install via composer

$ composer require xtwoend/hyperf-clickhouse

1. Add new connection into your config/database.php:

'clickhouse' => [
    'driver' => 'clickhouse',
    'host' => env('CLICKHOUSE_HOST'),
    'port' => env('CLICKHOUSE_PORT','8123'),
    'database' => env('CLICKHOUSE_DATABASE','default'),
    'username' => env('CLICKHOUSE_USERNAME','default'),
    'password' => env('CLICKHOUSE_PASSWORD',''),
    'timeout_connect' => env('CLICKHOUSE_TIMEOUT_CONNECT',2),
    'timeout_query' => env('CLICKHOUSE_TIMEOUT_QUERY',2),
    'https' => (bool)env('CLICKHOUSE_HTTPS', null),
    'retries' => env('CLICKHOUSE_RETRIES', 0),
    'settings' => [ // optional
        'max_partitions_per_insert_block' => 300,
    ],
],

Then patch your .env:

CLICKHOUSE_HOST=localhost
CLICKHOUSE_PORT=8123
CLICKHOUSE_DATABASE=default
CLICKHOUSE_USERNAME=default
CLICKHOUSE_PASSWORD=
CLICKHOUSE_TIMEOUT_CONNECT=2
CLICKHOUSE_TIMEOUT_QUERY=2
# only if you use https connection
CLICKHOUSE_HTTPS=true

1. Used

You can use smi2/phpClickHouse functionality directly:

/** @var \ClickHouseDB\Client $db */
$db = Clickhouse::connection('clickhouse')->getClient();
$statement = $db->select('SELECT * FROM summing_url_views LIMIT 2');

More about $db see here: https://github.com/smi2/phpClickHouse/blob/master/README.md

Or use dawnings of Eloquent ORM (will be implemented completely)

1. Add model

<?php


namespace App\Models\Clickhouse;

use Xtwoend\HyperfClickhouse\Model;

class MyTable extends Model
{
    // Not necessary. Can be obtained from class name MyTable => my_table
    protected $table = 'my_table';

}

1. Add migration

<?php


class CreateMyTable extends \Xtwoend\HyperfClickhouse\Migration
{
    /**
    * Run the migrations.
    *
    * @return void
    */
    public function up()
    {
        static::write('
            CREATE TABLE my_table (
                id UInt32,
                created_at DateTime,
                field_one String,
                field_two Int32
            )
            ENGINE = MergeTree()
            ORDER BY (id)
        ');
    }

    /**
    * Reverse the migrations.
    *
    * @return void
    */
    public function down()
    {
        static::write('DROP TABLE my_table');
    }
}

1. And then you can insert data

One row

$model = MyTable::create(['model_name' => 'model 1', 'some_param' => 1]);
# or
$model = MyTable::make(['model_name' => 'model 1']);
$model->some_param = 1;
$model->save();
# or
$model = new MyTable();
$model->fill(['model_name' => 'model 1', 'some_param' => 1])->save();

Or bulk insert

Non assoc way

MyTable::insertBulk([['model 1', 1], ['model 2', 2]], ['model_name', 'some_param']);

Assoc way

MyTable::insertAssoc([['model_name' => 'model 1', 'some_param' => 1], ['some_param' => 2, 'model_name' => 'model 2']]);

1. Now check out the query builder

$rows = MyTable::select(['field_one', new RawColumn('sum(field_two)', 'field_two_sum')])
    ->where('created_at', '>', '2020-09-14 12:47:29')
    ->groupBy('field_one')
    ->getRows();

Advanced usage

Retries You may enable ability to retry requests while received not 200 response, maybe due network connectivity problems.

Patch your .env:

CLICKHOUSE_RETRIES=2

retries is optional, default value is 0. 0 mean only one attempt. 1 mean one attempt + 1 retry while error (total 2 attempts).

Working with huge rows

You can chunk results like in Laravel

// Split the result into chunks of 30 rows 
$rows = MyTable::select(['field_one', 'field_two'])
    ->chunk(30, function ($rows) {
        foreach ($rows as $row) {
            echo $row['field_two'] . "\n";
        }
    });

Buffer engine for insert queries See https://clickhouse.tech/docs/en/engines/table-engines/special/buffer/

<?php

namespace App\Models\Clickhouse;

use Xtwoend\HyperfClickhouse\Model;

class MyTable extends Model
{
    // Not necessary. Can be obtained from class name MyTable => my_table
    protected $table = 'my_table';
    // All inserts will be in the table $tableForInserts 
    // But all selects will be from $table
    protected $tableForInserts = 'my_table_buffer';
}

If you also want to read from your buffer table, put its name in $table

<?php

namespace App\Models\Clickhouse;

use Xtwoend\HyperfClickhouse\Model;

class MyTable extends Model
{
    protected $table = 'my_table_buffer';
}

OPTIMIZE Statement See https://clickhouse.com/docs/ru/sql-reference/statements/optimize/

MyTable::optimize($final = false, $partition = null);

Deletions

See https://clickhouse.com/docs/en/sql-reference/statements/alter/delete/

MyTable::where('field_one', 123)->delete();

Using buffer engine and performing OPTIMIZE or ALTER TABLE DELETE

<?php

namespace App\Models\Clickhouse;

use Xtwoend\HyperfClickhouse\Model;

class MyTable extends Model
{
    // All SELECT's and INSERT's on $table
    protected $table = 'my_table_buffer';
    // OPTIMIZE and DELETE on $tableSources
    protected $tableSources = 'my_table';
}