A connector is the object that owns a connection to a data source. Every dataset belongs to exactly one connector. Connectors hold credentials (managed for you), schema metadata, and the list of tables Summand has discovered.Documentation Index
Fetch the complete documentation index at: https://docs.summand.com/llms.txt
Use this file to discover all available pages before exploring further.
Connector kinds
CSV
A file you upload from your machine. The connector wraps a single file as a single-table source.
PostgreSQL / MySQL / Snowflake
Direct, read-only connections to your warehouse. Tables are discovered at create time and refreshed on demand.
Azure SQL
Azure SQL Database and Managed Instance via the standard TDS protocol.
Delta Sharing
Databricks UniForm shares — Iceberg-backed for type-faithful, incremental refresh.
Fivetran
Managed connection to anything Fivetran supports (Databricks without UniForm, Redshift, Oracle, BigQuery, 300+ SaaS APIs). Summand reads Fivetran’s Parquet output.
What a connector stores
| Field | Description |
|---|---|
id | Stable identifier (con_…). |
kind | csv, postgres, mysql, snowflake, fivetran, or s3. |
displayName | The name you see in the UI. Editable. |
glueDb / glueTable | Internal: the Glue catalog references for query routing. |
visibility | private (default), showcase, or public. Inherited by datasets — see Sharing. |
userId | The owner. Sharing is granted on top of ownership. |
Visibility inheritance
If a connector is set topublic or showcase, every dataset under it is readable by anyone (subject to the visibility’s content rules — showcase blocks raw rows, public allows them). Setting the connector back to private locks down all datasets at once, regardless of their individual visibility settings. Use this when you need to revoke anonymous access across an entire source quickly.
When to create a new connector
- One file per project — upload as a new CSV connector for clean isolation.
- One database — one connector for the whole DB; Summand handles per-table datasets internally.
- Different credentials — if two parts of the same database need different access patterns, use two connectors.
Limits
| Tier | Connectors |
|---|---|
| Free | CSV only |
| Pro / Education | CSV only |
| Enterprise | All kinds — CSV plus the database, Delta Sharing, and Fivetran connectors |