Now when I want to insert multiple records at once, I must use the saveAll method. And the saveAll method uses the save method↓

// in class `SimpleR2dbcRepository` public <S extends T> Mono<S> save(S objectToSave) { Assert.notNull(objectToSave, "Object to save must not be null"); if (this.entity.isNew(objectToSave)) { return this.entityOperations.insert(objectToSave);	} return this.entityOperations.update(objectToSave); }

it wiil check if each record is new.
I'd like to know if there is any support for 'upsert' syntax or real batch insert syntax (insert into ... values ​​(...), (...);)
Thanks in advance :)