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PostgreSQL to Amazon Redshift integration

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

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4.8 on G2
PostgreSQLSource
WeldWeld
Amazon RedshiftWarehouse
Weld · New sync
PostgreSQLSourcePostgreSQLConnected
Tables to sync

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

  • Extract
  • Load
  • Keep in sync
Amazon RedshiftDestinationAmazon RedshiftReady
postgresql schema
  • postgresql.Synced
  • postgresql.Syncing
  • postgresql.Synced
  • postgresql.Synced

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How it works

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

Setup guideAPI guideMCP docs
Weld · Data warehouse
Amazon RedshiftData warehouseAmazon RedshiftConnected
Data locationChosen when you connect
CredentialsService account or key, stored encrypted
Use cases

Why replicate PostgreSQL to Amazon Redshift?
Ready for analysis.

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

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

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

  • Database replication for analytics

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

  • Centralized data warehouse

    Bring PostgreSQL data into Amazon Redshift 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 PostgreSQL to Amazon Redshift. Connect BI tools like Looker, Metabase, or Power BI.

Data

What data can you replicate?
From PostgreSQL to Amazon Redshift.

Weld syncs the objects the PostgreSQL connector exposes into Amazon Redshift, 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 Amazon Redshift for you.

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

    Set up the MCP serverClaudeCursorChatGPTGemini
    Claude CodeOpus 5
    >

    Which PostgreSQL tables do we have in Amazon Redshift, and which is the largest?

    Looking up what Weld has synced from PostgreSQL.

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

    Technical considerations.
    What to expect.

    Incremental syncing
    Weld uses incremental syncing where supported by the PostgreSQL API, loading only new and updated records to minimize data transfer and warehouse costs.
    Change data capture
    For 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 PostgreSQL adds new fields, they're detected and added to the corresponding Amazon Redshift 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

    PostgreSQL setup guide

    How to connect PostgreSQL to Weld, step by step.

    Documentation

    Amazon Redshift setup guide

    How to connect Amazon Redshift to Weld, step by step.

    Connector

    PostgreSQL connector

    Everything Weld does with PostgreSQL.

    Connector

    Amazon Redshift connector

    Everything Weld does with Amazon Redshift.

    FAQ

    Common questions.
    About PostgreSQL to Amazon Redshift.

    Start syncing PostgreSQL to Amazon Redshift.

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

    PostgreSQLSource
    WeldWeld
    Amazon RedshiftWarehouse
    Start for freeTalk to us
    Related

    Related integrations.
    More with PostgreSQL and Amazon Redshift.

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