Dandandan commented on a change in pull request #2108:
URL: https://github.com/apache/arrow-datafusion/pull/2108#discussion_r839422630
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File path: datafusion/common/src/dfschema.rs
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@@ -281,6 +282,18 @@ impl DFSchema {
.all(|(dffield, arrowfield)| dffield.name() == arrowfield.name())
}
+ /// Check to see if fields in 2 Arrow schemas are compatible
+ pub fn check_arrow_schema_type_compatible(&self, arrow_schema: &Schema) ->
bool {
+ let self_arrow_schema: Schema = self.into();
+ self_arrow_schema
+ .fields()
+ .iter()
+ .zip(arrow_schema.fields().iter())
+ .all(|(l_field, r_field)| {
+ can_cast_types(r_field.data_type(), l_field.data_type())
Review comment:
If this would return a `Result<()>` we could return a more specific
error of the type mismatch here (and pass it to the user).
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