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smartprojectgmbh/dbal-clickhouse
================================

Doctrine DBAL driver for ClickHouse

1.6.0(3y ago)18.4kMITPHPPHP ^7.1 || ^8.0CI failing

Since Jun 10Pushed 3y ago1 watchersCompare

[ Source](https://github.com/SmartProjectGMBH/dbal-clickhouse)[ Packagist](https://packagist.org/packages/smartprojectgmbh/dbal-clickhouse)[ Docs](http://github.com/SmartProjectGMBH/dbal-clickhouse)[ RSS](/packages/smartprojectgmbh-dbal-clickhouse/feed)WikiDiscussions master Synced today

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Doctrine DBAL ClickHouse Driver
===============================

[](#doctrine-dbal-clickhouse-driver)

Doctrine DBAL driver for ClickHouse -- an open-source column-oriented database management system by Yandex ()

Driver is suitable for Symfony or any other framework using Doctrine.

Installation
------------

[](#installation)

```
composer require SmartProjectGMBH/dbal-clickhouse

```

Initialization
--------------

[](#initialization)

### Custom PHP script

[](#custom-php-script)

```
$connectionParams = [
    'host' => 'localhost',
    'port' => 8123,
    'user' => 'default',
    'password' => '',
    'dbname' => 'default',
    'driverClass' => 'FOD\DBALClickHouse\Driver',
    'wrapperClass' => 'FOD\DBALClickHouse\Connection',
    'driverOptions' => [
        'extremes' => false,
        'readonly' => true,
        'max_execution_time' => 30,
        'enable_http_compression' => 0,
        'https' => false,
    ],
];
$conn = \Doctrine\DBAL\DriverManager::getConnection($connectionParams, new \Doctrine\DBAL\Configuration());
```

`driverOptions` are special `smi2/phpclickhouse` client [settings](https://github.com/smi2/phpClickHouse#settings)

### Symfony

[](#symfony)

configure...

```
# app/config/config.yml
doctrine:
    dbal:
        connections:
            clickhouse:
                host:     localhost
                port:     8123
                user:     default
                password: ""
                dbname:   default
                driver_class: FOD\DBALClickHouse\Driver
                wrapper_class: FOD\DBALClickHouse\Connection
                options:
                    enable_http_compression: 1
                    max_execution_time: 60
            #mysql:
            #   ...
```

...and get from the service container

```
$conn = $this->get('doctrine.dbal.clickhouse_connection');
```

Usage
-----

[](#usage)

### Create new table

[](#create-new-table)

```
// ***quick start***
$fromSchema = $conn->getSchemaManager()->createSchema();
$toSchema = clone $fromSchema;

// create new table object
$newTable = $toSchema->createTable('new_table');

// add columns
$newTable->addColumn('id', 'integer', ['unsigned' => true]);
$newTable->addColumn('payload', 'string', ['notnull' => false]);
// *option 'notnull' in false mode allows you to insert NULL into the column;
//                   in this case, the column will be represented in the ClickHouse as Nullable(String)
$newTable->addColumn('hash', 'string', ['length' => 32, 'fixed' => true]);
// *option 'fixed' sets the fixed length of a string column as specified;
//                 if specified, the type of the column is FixedString

//set primary key
$newTable->setPrimaryKey(['id']);

// execute migration SQLs to create table in ClickHouse
$sqlArray = $fromSchema->getMigrateToSql($toSchema, $conn->getDatabasePlatform());
foreach ($sqlArray as $sql) {
    $conn->exec($sql);
}
```

```
// ***more options (optional)***

//specify table engine
$newTable->addOption('engine', 'MergeTree');
// *if not specified -- default engine 'ReplacingMergeTree' will be used

// add Date column for partitioning
$newTable->addColumn('event_date', 'date', ['default' => 'toDate(now())']);
$newTable->addOption('eventDateColumn', 'event_date');
// *if not specified -- default Date column named EventDate will be added
$newTable->addOption('eventDateProviderColumn', 'updated_at');
// *if specified -- event date column will be added with default value toDate(updated_at);
//    if the type of the provider column is `string`, the valid format of provider column values must be either `YYYY-MM-DD` or `YYYY-MM-DD hh:mm:ss`
//    if the type of provider column is neither `string`, nor `date`, nor `datetime`, provider column values must contain a valid UNIX Timestamp
$newTable->addOption('samplingExpression', 'intHash32(id)');
// samplingExpression -- a tuple that defines the table's primary key, and the index granularity

//specify index granularity
$newTable->addOption('indexGranularity', 4096);
// *if not specified -- default value 8192 will be used
```

### Insert

[](#insert)

```
// 1
$conn->exec("INSERT INTO new_table (id, payload) VALUES (1, 'dummyPayload1')");
```

```
// 2
$conn->insert('new_table', ['id' => 2, 'payload' => 'dummyPayload2']);
// INSERT INTO new_table (id, payload) VALUES (?, ?) [2, 'dummyPayload2']
```

```
// 3 via QueryBuilder
$qb = $conn->createQueryBuilder();

$qb
    ->insert('new_table')
    ->setValue('id', ':id')
    ->setValue('payload', ':payload')
    ->setParameter('id', 3, \PDO::PARAM_INT) // need to explicitly set param type to `integer`, because default type is `string` and ClickHouse doesn't like types mismatchings
    ->setParameter('payload', 'dummyPayload3');

$qb->execute();
```

### Select

[](#select)

```
echo $conn->fetchColumn('SELECT SUM(views) FROM articles');
```

### Select via Dynamic Parameters and Prepared Statements

[](#select-via-dynamic-parameters-and-prepared-statements)

```
$stmt = $conn->prepare('SELECT authorId, SUM(views) AS total_views FROM articles WHERE category_id = :categoryId AND publish_date = :publishDate GROUP BY authorId');

$stmt->bindValue('categoryId', 123);
$stmt->bindValue('publishDate', new \DateTime('2017-02-29'), 'datetime');
$stmt->execute();

while ($row = $stmt->fetch()) {
    echo $row['authorId'] . ': ' . $row['total_views'] . PHP_EOL;
}
```

### Additional types

[](#additional-types)

If you want to use [Array(T) type](https://clickhouse.yandex/reference_en.html#Array(T)), register additional DBAL types in your code:

```
// register all custom DBAL Array types
ArrayType::registerArrayTypes($conn->getDatabasePlatform());
// register one custom DBAL Array(Int8) type
Type::addType('array(int8)', 'FOD\DBALClickHouse\Types\ArrayInt8Type');
```

or register them in Symfony configuration file:

```
# app/config/config.yml
doctrine:
    dbal:
        connections:
        ...
        types:
            array(int8): FOD\DBALClickHouse\Types\ArrayInt8Type
            array(int16): FOD\DBALClickHouse\Types\ArrayInt16Type
            array(int32): FOD\DBALClickHouse\Types\ArrayInt32Type
            array(int64): FOD\DBALClickHouse\Types\ArrayInt64Type
            array(uint8): FOD\DBALClickHouse\Types\ArrayUInt8Type
            array(uint16): FOD\DBALClickHouse\Types\ArrayUInt16Type
            array(uint32): FOD\DBALClickHouse\Types\ArrayUInt32Type
            array(uint64): FOD\DBALClickHouse\Types\ArrayUInt64Type
            array(float32): FOD\DBALClickHouse\Types\ArrayFloat32Type
            array(float64): FOD\DBALClickHouse\Types\ArrayFloat64Type
            array(string): FOD\DBALClickHouse\Types\ArrayStringType
            array(datetime): FOD\DBALClickHouse\Types\ArrayDateTimeType
            array(date): FOD\DBALClickHouse\Types\ArrayDateType
```

If you want to use [numeric types](https://clickhouse.yandex/docs/en/single/#uint8-uint16-uint32-uint64-int8-int16-int32-int64), register additional DBAL types in your Symfony configuration file:

```
# app/config/config.yml
doctrine:
    dbal:
        connections:
        ...
        types:
            int8: FOD\DBALClickHouse\Types\Int8Type
            int16: FOD\DBALClickHouse\Types\Int16Type
            int32: FOD\DBALClickHouse\Types\Int32Type
            int64: FOD\DBALClickHouse\Types\Int64Type
            float32: FOD\DBALClickHouse\Types\Float32Type
            float64: FOD\DBALClickHouse\Types\Float64Type
            decimal: FOD\DBALClickHouse\Types\DecimalType
```

or you can override DBAL type in your code:

```
Type::overrideType(Type::BIGINT, 'FOD\DBALClickHouse\Types\Int64Type');

Type::overrideType(Type::DECIMAL, 'FOD\DBALClickHouse\Types\DecimalType');
```

### More information in Doctrine DBAL documentation:

[](#more-information-in-doctrine-dbal-documentation)

- [Data Retrieval And Manipulation](http://docs.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/data-retrieval-and-manipulation.html)
- [SQL Query Builder](http://docs.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/query-builder.html)
- [Schema-Representation](http://docs.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/schema-representation.html)

###  Health Score

35

—

LowBetter than 79% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity20

Limited adoption so far

Community15

Small or concentrated contributor base

Maturity72

Established project with proven stability

 Bus Factor1

Top contributor holds 61.8% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~104 days

Total

14

Last Release

1169d ago

PHP version history (2 changes)1.5.3PHP ^7.1

1.5.14PHP ^7.1 || ^8.0

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/1355333?v=4)[Volodymyr Hetmanshchuk](/maintainers/vladget)[@vladget](https://github.com/vladget)

![](https://avatars.githubusercontent.com/u/32455361?v=4)[Alex](/maintainers/unencoded)[@unencoded](https://github.com/unencoded)

---

Top Contributors

[![mochalygin](https://avatars.githubusercontent.com/u/2054744?v=4)](https://github.com/mochalygin "mochalygin (115 commits)")[![argayash](https://avatars.githubusercontent.com/u/790535?v=4)](https://github.com/argayash "argayash (46 commits)")[![chirva-smartproject](https://avatars.githubusercontent.com/u/65537820?v=4)](https://github.com/chirva-smartproject "chirva-smartproject (9 commits)")[![vladget](https://avatars.githubusercontent.com/u/1355333?v=4)](https://github.com/vladget "vladget (5 commits)")[![shcherbanich](https://avatars.githubusercontent.com/u/3122336?v=4)](https://github.com/shcherbanich "shcherbanich (5 commits)")[![bllem](https://avatars.githubusercontent.com/u/8177592?v=4)](https://github.com/bllem "bllem (3 commits)")[![Ulv](https://avatars.githubusercontent.com/u/1286235?v=4)](https://github.com/Ulv "Ulv (2 commits)")[![Vasary](https://avatars.githubusercontent.com/u/2060334?v=4)](https://github.com/Vasary "Vasary (1 commits)")

---

Tags

doctrinedbaldriverclickhouse

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/smartprojectgmbh-dbal-clickhouse/health.svg)

```
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```

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