Crate faucet_transform_sql 

SQL-as-transform for faucet-stream, backed by embedded DuckDB.

Each pipeline page is exposed to a SQL query as the relation batch; the result set becomes the new page. SqlTransformConfig is the user-facing config (the query plus optional reference RelationSpecs, whose data comes from a RelationSource). SqlTransform is the compiled runtime that owns the DuckDB connection and runs the query per page.

Structs

RelationSpec

A reference relation registered before the first page.

SqlTransform

A compiled SQL transform. One DuckDB connection, reused across the row’s pages.

SqlTransformConfig

Configuration for the sql transform.

Enums

HttpMethod

HTTP method used to fetch an http reference relation. Only the two verbs a small read-only list endpoint needs are supported; GET is the default.

RelationSource

The data source for a reference relation.