Function search_dfschema

datafusion/sql/src/expr/identifier.rs:310–324

(
    ids: &'ids [String],
    schema: &'schema DFSchema,
)

}

fn search_dfschema<'ids, 'schema>(
    ids: &'ids [String],
    schema: &'schema DFSchema,
) -> Option<(
    &'schema FieldRef,
    Option<&'schema TableReference>,
    &'ids [String],
)> {
    generate_schema_search_terms(ids).find_map(|(qualifier, column, nested_names)| {
        let qualifier_and_field = schema
            .qualified_field_with_name(qualifier.as_ref(), column)
            .ok();
        qualifier_and_field.map(|(qualifier, field)| (field, qualifier, nested_names))
    })
}

// Possibilities we search with, in order from top to bottom for each len:
//