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try_project_schema

hyperfuel_schema

Function try_project_schema 

Source 
pub fn try_project_schema(
    schema: &ArrowSchema,
    field_selection: &BTreeSet<String>,
) -> Result<ArrowSchema>
Expand description

Project a schema down to the named fields, returning an error if any requested field is not present in the source schema. Use this to catch typos in field selections instead of silently receiving a partial schema.