## engines.run_substrait_json()


Run a Substrait plan on DataFusion.


Usage

``` python
engines.run_substrait_json(
    con,
    plan_json,
)
```


The plan runs as given; `sverify.engines.run(con, plan, "datafusion")` first rewrites a plan in Lean's written form where DataFusion's semantics differ, and is what to use for checked plans.


## Parameters


`con: Connection`  
The connection whose tables the plan reads.

`plan_json: str`  
A Substrait plan as protobuf JSON.


## Returns


`pa.Table`  
The result, with doubles as `canonical` makes them.


## Raises


`ImportError`  
DataFusion is not installed.