Google BigQuery to MotherDuck integration

Connect Google BigQuery to MotherDuck and automatically sync your cloud data warehouse data. Weld extracts data from Google BigQuery, loads it into MotherDuck, and lets you transform the data using SQL or dbt, no custom scripts required.

4.8 on G2
Google BigQuerySource
WeldWeld
MotherDuckWarehouse
Weld · New sync
Google BigQuerySourceGoogle BigQueryConnected
Tables to sync
  • tldv_raw.meetings9 cols
  • tldv_raw.transcripts7 cols
  • sales.commissions6 cols
  • google_sheets.worksheet_sheet33 cols
  • Extract
  • Load
  • Keep in sync
MotherDuckDestinationMotherDuckReady
bigquery schema
  • bigquery.tldv_raw.meetingsSynced
  • bigquery.tldv_raw.transcriptsSyncing
  • bigquery.sales.commissionsSynced
  • bigquery.google_sheets.worksheet_sheet3Synced
Google BigQuery tables
4
fields, typed
25
agent context included
MCP

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How it works

How to set up Google BigQuery to MotherDuck in Weld.
In the app, with the API or an agent.

Weld · Data warehouse
MotherDuckData warehouseMotherDuckConnected
Data locationChosen when you connect
CredentialsService account or key, stored encrypted
Use cases

Why sync Google BigQuery to MotherDuck?
Ready for analysis.

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

Build reliable dashboards and reports by querying Google BigQuery data directly in MotherDuck using SQL or your preferred BI tool.

  • Centralized data warehouse

    Bring Google BigQuery data into MotherDuck 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 Google BigQuery to MotherDuck. Connect BI tools like Looker, Metabase, or Power BI.

Schema

What data can you sync?
Every Google BigQuery table, keys intact.

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

Open the schema explorer
All 4 tables
  • tldv_raw.meetings
  • tldv_raw.transcripts
  • sales.commissions
  • google_sheets.worksheet_sheet3
Weld MCP server

Ask your agent.
It queries MotherDuck for you.

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

Claude CodeOpus 5
>

How many tldv_raw.meetings rows do we have in MotherDuck?

Reading the Google BigQuery context first, so the query uses the right tables and keys.

●weld·search_available_references
⎿raw.bigquery.tldv_raw.meetings
+ 3 more Google BigQuery tables
●weld·get_reference_schema
⎿tldv_raw.meetings · 9 columns
columns and types
●weld·run_query
⎿select count(*) from {{raw.bigquery.tldv_raw.meetings}}
submitted
●weld·get_query_status
⎿DONE
●weld·get_query_result
⎿rows returned
✓Answered from Google BigQuery data in MotherDuck
>Ask about your Google BigQuery data
Under the hood

Technical considerations.
What to expect.

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

Common questions.
About Google BigQuery to MotherDuck.

Start syncing Google BigQuery to MotherDuck.

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

Google BigQuerySource
WeldWeld
MotherDuckWarehouse