insertAllValues method
Implementation
Future<List<RowData>> insertAllValues(
Object table, {
required Iterable<Object> columns,
required Iterable<AnyList> rows,
Returning? returning,
}) async {
assert(columns.isNotEmpty && rows.isNotEmpty);
returning ??= Returning.ALL;
SpaceBuffer buf = _insertBuffer(table, columns);
buf << returning.clause;
List<QueryResult> ls = await this.multiQuery(buf.toString(), rows);
return ls.mapList((e) => e.firstRow()!);
}