Share a Delta table with an external organization using the open Delta Sharing protocol
domain: delta.io · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Stand up or use an existing Delta Sharing Server (or a hosted sharing endpoint) and register the Delta table under a named Share and Schema.
Create a Recipient object for the external consumer, authenticating them via a long-lived bearer token or OIDC federation.
Generate the recipient's profile JSON file (sharing server endpoint plus bearer token) and deliver it out-of-band to the consuming organization.
On the consumer side, use a Delta Sharing client (the delta-sharing Python library, a Spark connector, or a BI tool connector) pointed at the profile file to list and read the shared table.
Confirm the recipient can see only the tables/schemas explicitly granted to their Share, not the full source catalog.
Known gotchas
The profile file contains a bearer token in plaintext; treat it as a credential and revoke/rotate it if leaked rather than editing the share definition.
Delta Sharing exposes read-only access to table snapshots; it does not sync writes back or provide bidirectional sync.
The version range visible to recipients depends on server configuration; very old versions can become unreadable once the source table has been vacuumed.
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