Function _validate_feature_views

sdk/python/feast/feature_store.py:4277–4296

Verify feature views have case-insensitively unique names across all types. This validates that no two feature views (of any type: FeatureView, StreamFeatureView, OnDemandFeatureView) share the same case-insensitive name. This is critical because get_online_features uses get_any_feature

(feature_views: List[BaseFeatureView])

def _validate_feature_views(feature_views: List[BaseFeatureView]):
    """Verify feature views have case-insensitively unique names across all types.

    This validates that no two feature views (of any type: FeatureView,
    StreamFeatureView, OnDemandFeatureView) share the same case-insensitive name.
    This is critical because get_online_features uses get_any_feature_view which
    resolves names in a fixed order, potentially returning the wrong feature view.
    """
    fv_by_name: Dict[str, BaseFeatureView] = {}
    for fv in feature_views:
        case_insensitive_fv_name = fv.name.lower()
        if case_insensitive_fv_name in fv_by_name:
            existing_fv = fv_by_name[case_insensitive_fv_name]
            raise ConflictingFeatureViewNames(
                fv.name,
                existing_type=type(existing_fv).__name__,
                new_type=type(fv).__name__,
            )
        else:
            fv_by_name[case_insensitive_fv_name] = fv


def _validate_data_sources(data_sources: List[DataSource]):