addColumnWithExpression method
Implementation
Future<void> addColumnWithExpression({required String table, required Map<String, String> newColumns, List<String>? namespace}) async {
await _invoke("add_columns", {
"table": table,
"columns": newColumns.entries
.map((entry) => {"name": entry.key, "value_sql": entry.value, "data_type": null})
.toList(growable: false),
"namespace": namespace,
});
}