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@xpert-ai/plugin-clickhouse

v0.0.1

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tiven.wangtiven.wang

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Readme

Xpert Plugin: ClickHouse Data Source

@xpert-ai/plugin-clickhouse migrates the legacy Xpert ClickHouse adapter into an independently installable database plugin. It registers the clickhouse data-source strategy and preserves query execution, catalog discovery, schema introspection, JDBC URL generation, and managed table imports.

Installation

pnpm add @xpert-ai/plugin-clickhouse

Register the package through the Xpert plugin manager, then create a data source with type clickhouse.

Connection options

| Field | Type | Required | Default | Description | | --- | --- | --- | --- | --- | | url | string | No | http://127.0.0.1:8123 | ClickHouse HTTP endpoint | | host | string | No | localhost | Host used by the JDBC URL | | port | number | No | 8123 | HTTP/JDBC port | | username | string | No | default | ClickHouse user | | password | string | No | - | Secret password | | dbname | string | Yes | - | Default database | | timeout | number | No | 30 | Request timeout retained for compatibility | | verify | boolean | No | true | TLS verification preference retained for compatibility |

Example data-source options:

{
  "url": "http://clickhouse.internal:8123",
  "host": "clickhouse.internal",
  "port": 8123,
  "username": "analytics",
  "password": "******",
  "dbname": "warehouse"
}

Capabilities

  • Execute ClickHouse SQL over the HTTP protocol.
  • List non-system databases.
  • Group system.columns metadata into Xpert schemas, tables, and columns.
  • Infer query result columns for downstream modeling.
  • Create databases and import data into MergeTree tables in batches.
  • Generate ClickHouse JDBC URLs for compatible downstream runtimes.

The plugin registers no TypeORM entities, controllers, routes, queues, or persisted global artifacts. Its stable clickhouse strategy key is the legacy data-source protocol identifier, so no system artifact namespace is required.

Development

From xpert-plugins/xpertai:

corepack pnpm exec nx run @xpert-ai/plugin-clickhouse:build
corepack pnpm exec nx run @xpert-ai/plugin-clickhouse:typecheck
corepack pnpm exec nx run @xpert-ai/plugin-clickhouse:lint
corepack pnpm exec nx run @xpert-ai/plugin-clickhouse:test

Live database verification requires a reachable ClickHouse instance. The unit suite uses a typed client boundary and does not require external credentials.

License

AGPL-3.0