target-clickhouse - Meltano Hub

Clickhouse

target-clickhouse (shaped-ai variant)🥈

Loader for Clickhouse database.

The target-clickhouse loader sends data into Clickhouse after it was pulled from a source using an extractor

Getting Started

Prerequisites

If you haven't already, follow the initial steps of the Getting Started guide:

Installation and configuration

Add the target-clickhouse loader to your project using
```
meltano add
```
:

meltano add loader target-clickhouse

Configure the target-clickhouse settings using

meltano config

:

meltano config target-clickhouse set --interactive

Next steps

Follow the remaining steps of the Getting Started guide:

Run a data integration (EL) pipeline

If you run into any issues, learn how to get help.

Capabilities

The current capabilities for target-clickhouse may have been automatically set when originally added to the Hub. Please review the capabilities when using this loader. If you find they are out of date, please consider updating them by making a pull request to the YAML file that defines the capabilities for this loader.

This plugin has the following capabilities:

about
schema-flattening
stream-maps

You can override these capabilities or specify additional ones in your meltano.yml by adding the capabilities key.

Settings

The target-clickhouse settings that are known to Meltano are documented below. To quickly find the setting you're looking for, click on any setting name from the list:

add_record_metadata
default_target_schema
flattening_enabled
flattening_max_depth
load_method
sqlalchemy_url
stream_map_config
stream_maps
table_name

You can also list these settings using

meltano config

with the list subcommand:

meltano config target-clickhouse list

You can override these settings or specify additional ones in your meltano.yml by adding the settings key.

Please consider adding any settings you have defined locally to this definition on MeltanoHub by making a pull request to the YAML file that defines the settings for this plugin.

Add Record Metadata (add_record_metadata)

Environment variable: TARGET_CLICKHOUSE_ADD_RECORD_METADATA

Add metadata to records.

Configure this setting directly using the following Meltano command:

meltano config target-clickhouse set add_record_metadata [value]

Default Target Schema (default_target_schema)

Environment variable: TARGET_CLICKHOUSE_DEFAULT_TARGET_SCHEMA

The default target database schema name to use for all streams.

Configure this setting directly using the following Meltano command:

meltano config target-clickhouse set default_target_schema [value]

Flattening Enabled (flattening_enabled)

Environment variable: TARGET_CLICKHOUSE_FLATTENING_ENABLED

'True' to enable schema flattening and automatically expand nested properties.

Configure this setting directly using the following Meltano command:

meltano config target-clickhouse set flattening_enabled [value]

Flattening Max Depth (flattening_max_depth)

Environment variable: TARGET_CLICKHOUSE_FLATTENING_MAX_DEPTH

The max depth to flatten schemas.

Configure this setting directly using the following Meltano command:

meltano config target-clickhouse set flattening_max_depth [value]

Load Method (load_method)

Environment variable: TARGET_CLICKHOUSE_LOAD_METHOD
Default Value: append-only

The method to use when loading data into the destination. append-only will always write all input records whether that records already exists or not. upsert will update existing records and insert new records. overwrite will delete all existing records and insert all input records.

Configure this setting directly using the following Meltano command:

meltano config target-clickhouse set load_method [value]

Sqlalchemy URL (sqlalchemy_url)

Environment variable: TARGET_CLICKHOUSE_SQLALCHEMY_URL

The SQLAlchemy connection string for the ClickHouse database

Configure this setting directly using the following Meltano command:

meltano config target-clickhouse set sqlalchemy_url [value]

Stream Map Config (stream_map_config)

Environment variable: TARGET_CLICKHOUSE_STREAM_MAP_CONFIG

User-defined config values to be used within map expressions.

Configure this setting directly using the following Meltano command:

meltano config target-clickhouse set stream_map_config [value]

Stream Maps (stream_maps)

Environment variable: TARGET_CLICKHOUSE_STREAM_MAPS

Config object for stream maps capability. For more information check out Stream Maps.

Configure this setting directly using the following Meltano command:

meltano config target-clickhouse set stream_maps [value]

Table Name (table_name)

Environment variable: TARGET_CLICKHOUSE_TABLE_NAME

The name of the table to write to. Defaults to stream name.

Configure this setting directly using the following Meltano command:

meltano config target-clickhouse set table_name [value]

Something missing?

This page is generated from a YAML file that you can contribute changes to.

Edit it on GitHub!

Looking for help?

If you're having trouble getting the target-clickhouse loader to work, look for an existing issue in its repository, file a new issue, or join the Meltano Slack community and ask for help in the

#plugins-general

channel.

Install

meltano add loader target-clickhouse

Maintenance Status

Repo

https://github.com/shaped-ai/target-clickhouse

Maintainer

Meltano Stats

Keywords