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Segment to PostgreSQL integration

Connect Segment to PostgreSQL and automatically sync your marketing platform data. Weld extracts data from Segment, loads it into PostgreSQL, and lets you transform the data using SQL or dbt, no custom scripts required.

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4.8 on G2
SegmentSource
WeldWeld
PostgreSQLWarehouse
Weld · New sync
SegmentSourceSegmentConnected
Tables to sync

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

  • Extract
  • Load
  • Keep in sync
PostgreSQLDestinationPostgreSQLReady
segment schema
  • segment.Synced
  • segment.Syncing
  • segment.Synced
  • segment.Synced

Trusted by data and AI teams

  • Flatpay
  • Holafly
  • eComplete
  • Dishoom
  • Danish Endurance
  • Female Invest
  • Son of a Tailor
  • Onomondo
  • Medik8
  • Pas Normal Studios
How it works

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

Setup guideAPI guideMCP docs
Weld · New Segment sync
SegmentNew connectionSegmentAuthorised
Connection namesegment
AuthorizeOpens Segment to grant read access
Use cases

Why sync Segment to PostgreSQL?
Ready for analysis.

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

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

  • Centralized data warehouse

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

Data

What data can you sync?
From Segment to PostgreSQL.

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

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

    Set up the MCP serverClaudeCursorChatGPTGemini
    Claude CodeOpus 5
    >

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

    Looking up what Weld has synced from Segment.

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

    Technical considerations.
    What to expect.

    Incremental syncing
    Weld uses incremental syncing where supported by the Segment API, loading only new and updated records to minimize data transfer and warehouse costs.
    Schema handling
    Weld automatically manages schema changes. If Segment adds new fields, they're detected and added to the corresponding PostgreSQL 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

    Segment setup guide

    How to connect Segment to Weld, step by step.

    Documentation

    PostgreSQL setup guide

    How to connect PostgreSQL to Weld, step by step.

    Connector

    Segment connector

    Everything Weld does with Segment.

    Connector

    PostgreSQL connector

    Everything Weld does with PostgreSQL.

    FAQ

    Common questions.
    About Segment to PostgreSQL.

    Start syncing Segment to PostgreSQL.

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

    SegmentSource
    WeldWeld
    PostgreSQLWarehouse
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    Related

    Related integrations.
    More with Segment and PostgreSQL.

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