TableFilterSet FilterCombiner::GenerateTableScanFilters(const vector<ColumnIndex> &column_ids) {
	TableFilterSet table_filters;
	//! First, we figure the filters that have constant expressions that we can push down to the table scan
	for (auto &constant_value : constant_values) {
		if (!constant_value.second.empty()) {

void FilterCombiner::GenerateFilters(const std::function<void(unique_ptr<Expression> filter)> &callback) {
	// first loop over the remaining filters
	for (auto &filter : remaining_filters) {
		callback(std::move(filter));
	}
	remaining_filters.clear();
	// now loop over the equivalence sets
	for (auto &entry : equivalence_map) {