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Heroku PostgreSQL to Snowflake integration

Replicate your Heroku PostgreSQL data into Snowflake with Weld. Automatically replicate the tables you choose from Heroku PostgreSQL into Snowflake, keeping your analytics layer up to date and ready for querying.

Start for freeView setup guide
4.8 on G2
Heroku PostgreSQLSource
WeldWeld
SnowflakeWarehouse
Weld · New sync
Heroku PostgreSQLSourceHeroku PostgreSQLConnected
Tables to sync

Your own tables, picked when you set up the sync.

  • Extract
  • Load
  • Keep in sync
SnowflakeDestinationSnowflakeReady
heroku_postgres schema
  • heroku_postgres.Synced
  • heroku_postgres.Syncing
  • heroku_postgres.Synced
  • heroku_postgres.Synced

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How it works

How to set up Heroku PostgreSQL to Snowflake in Weld.
In the app, with the API or an agent.

Setup guideAPI guideMCP docs
Weld · Data warehouse
SnowflakeData warehouseSnowflakeConnected
Data locationChosen when you connect
CredentialsService account or key, stored encrypted
Use cases

Why replicate Heroku PostgreSQL to Snowflake?
Ready for analysis.

Centralizing your Heroku PostgreSQL data in Snowflake lets you join it with other data sources for cross-platform analytics and deeper insights.

Build reliable dashboards and reports by querying Heroku PostgreSQL data directly in Snowflake using SQL or your preferred BI tool.

Consolidate data from Heroku PostgreSQL alongside other databases and applications in a single database for a unified analytical layer.

  • Database replication for analytics

    Replicate your Heroku PostgreSQL production data to Snowflake without impacting database performance. Query historical data without load on your primary database.

  • Centralized data warehouse

    Bring Heroku PostgreSQL data into Snowflake alongside other sources to create a single source of truth for your organization.

  • Automated reporting

    Replace manual exports and spreadsheet-based reporting with automated pipelines from Heroku PostgreSQL to Snowflake. Connect BI tools like Looker, Metabase, or Power BI.

Data

What data can you replicate?
From Heroku PostgreSQL to Snowflake.

Weld syncs the objects the Heroku PostgreSQL connector exposes into Snowflake, and you choose which tables and fields to include. The connector's docs list what is available.

    Weld MCP server

    Ask your agent.
    It queries Snowflake for you.

    Connect Claude, Cursor, ChatGPT or your own agent to Weld over MCP. It reads the Heroku PostgreSQL context, finds the tables it needs and runs the query in Snowflake.

    Set up the MCP serverClaudeCursorChatGPTGemini
    Claude CodeOpus 5
    >

    Which Heroku PostgreSQL tables do we have in Snowflake, and which is the largest?

    Looking up what Weld has synced from Heroku PostgreSQL.

    ●weld·search_available_references
    ⎿raw.heroku_postgres.*
    tables, columns and freshness
    ●weld·get_reference_schema
    ⎿columns, types and nullability
    ●weld·run_query
    ⎿select count(*) from {{raw.heroku_postgres.…}}
    submitted
    ●weld·get_query_status
    ⎿DONE
    ●weld·get_query_result
    ⎿rows returned
    ✓Answered from Heroku PostgreSQL data in Snowflake
    >Ask about your Heroku PostgreSQL data
    Under the hood

    Technical considerations.
    What to expect.

    Incremental syncing
    Weld uses incremental syncing where supported by the Heroku PostgreSQL API, loading only new and updated records to minimize data transfer and warehouse costs.
    Change data capture
    For Heroku PostgreSQL, Weld can use log-based replication (CDC) to capture inserts, updates, and deletes without querying the entire table on every sync.
    Schema handling
    Weld automatically manages schema changes. If Heroku PostgreSQL adds new fields, they're detected and added to the corresponding Snowflake tables.
    Data freshness
    Sync frequency depends on your Weld plan. Most connectors support schedules from every 5 minutes up to daily intervals.
    Security
    All data is encrypted in transit (TLS) and at rest. Weld is SOC 2 Type II compliant and supports IP whitelisting for database connections.
    Resources

    Keep reading.
    Guides, docs and schema.

    Documentation

    Heroku PostgreSQL setup guide

    How to connect Heroku PostgreSQL to Weld, step by step.

    Documentation

    Snowflake setup guide

    How to connect Snowflake to Weld, step by step.

    Connector

    Heroku PostgreSQL connector

    Everything Weld does with Heroku PostgreSQL.

    Connector

    Snowflake connector

    Everything Weld does with Snowflake.

    FAQ

    Common questions.
    About Heroku PostgreSQL to Snowflake.

    Start syncing Heroku PostgreSQL to Snowflake.

    Set up your Heroku PostgreSQL data pipeline in minutes. No credit card required. Free for 14 days.

    Heroku PostgreSQLSource
    WeldWeld
    SnowflakeWarehouse
    Start for freeTalk to us
    Related

    Related integrations.
    More with Heroku PostgreSQL and Snowflake.

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