ClickHouse to PostgreSQL Integration
AI-first ETL from ClickHouse into PostgreSQL. Governed entities, incremental sync, typed landing tables.
How Datrise loads ClickHouse into PostgreSQL
Datrise syncs ClickHouse's tables, rows, partitions, materialized views, table schemas, and merge parts into PostgreSQL as a typed table per source entity. Flexible or custom fields land in jsonb columns, and timestamps such as created, updated, and status changes are typed as timestamptz.
Sync is incremental: Datrise uses a watermark on each entity's updated-at, applied with INSERT … ON CONFLICT DO UPDATE, so re-runs update only what changed. Optional declarative range partitioning by load date for high-volume tables. PostgreSQL folds unquoted identifiers to lowercase, so Datrise normalizes mixed-case source fields to snake_case.
Ideal for operational analytics and application backends that need fresh, queryable copies of your data.
Endpoints
ClickHouse: Column-oriented database for real-time analytics.
PostgreSQL: Open-source relational database with strong SQL and extensions.
How ClickHouse entities map to PostgreSQL
| ClickHouse entity | PostgreSQL object | Notes |
|---|---|---|
| tables | clickhouse_tables | id PK · custom fields → jsonb columns |
| rows | clickhouse_rows | id PK · linked to clickhouse_tables |
| partitions | clickhouse_partitions | id PK · linked to clickhouse_tables |
| materialized views | clickhouse_materialized_views | id PK · linked to clickhouse_tables |
FAQ
How does Datrise handle ClickHouse's custom fields in PostgreSQL?
Flexible values are stored as jsonb columns, so new fields don't require a migration; strongly-typed fields — dates, numbers, and references — are promoted to native PostgreSQL types.
How does the ClickHouse to PostgreSQL sync stay up to date?
It runs incrementally — Datrise uses a watermark on each entity's updated-at, applied with INSERT … ON CONFLICT DO UPDATE.
Related pipelines
More destinations for ClickHouse
- ClickHouse → MySQL
- ClickHouse → Microsoft SQL Server
- ClickHouse → Oracle Database
- ClickHouse → Snowflake
- ClickHouse → Google BigQuery
- ClickHouse → Amazon Redshift
- ClickHouse → Databricks SQL Warehouse
- ClickHouse → ClickHouse
- ClickHouse → DuckDB
- ClickHouse → Amazon Athena
- ClickHouse → Amazon S3 Data Lake
- ClickHouse → Azure Data Lake Storage
Early access
Connect ClickHouse to PostgreSQL the easy way
Skip brittle scripts and manual exports. Join the waitlist to get a guided setup, AI-assisted mapping, and reliable incremental sync for this integration.