Problem summary
Your PostgreSQL export can't connect to your database because the database host only has an IPv6 address.
Error message or symptoms
The export fails with:
Cannot connect to '<host>': the host appears to be IPv6-only and this environment cannot route IPv6 traffic. Please update the connection to use an IPv4 host.
When does this occur
The host name in the export's Host setting resolves only to IPv6 addresses.
You connect to the direct Supabase host,
db.<project-ref>.supabase.co, without the Supabase IPv4 add-on.
Root cause
Funnel connects to PostgreSQL databases over IPv4 only. When the host has no IPv4 address, Funnel can't reach it.
Solution
Change the export to use a host that has an IPv4 address, then run the export again:
Self-managed or other managed databases: Use a host name or endpoint that resolves to an IPv4 address. Check your provider's network settings to turn on IPv4.
Supabase: Use the Supabase Session pooler.
Set Host to aws-0-<region>.pooler.supabase.com and Port to 5432, and add your project reference to the username, for example funnel_export.<project-ref>. Find these values in your Supabase dashboard under Connect > Session pooler. To keep the direct host instead, turn on the IPv4 add-on under Project Settings > Add-ons in Supabase.