SDiffByTwoBuckets
返回一个集合与给定集合的差集的元素。这两个集合分别在不同bucket中。
bucket1 := "bucket1"
key1 := []byte("mySet1")
bucket2 := "bucket2"
key2 := []byte("mySet2")
if err := db.Update(
func(tx *nutsdb.Tx) error {
return tx.SAdd(bucket1, key1, []byte("a"), []byte("b"), []byte("c"))
}); err != nil {
log.Fatal(err)
}
if err := db.Update(
func(tx *nutsdb.Tx) error {
return tx.SAdd(bucket2, key2, []byte("c"), []byte("d"))
}); err != nil {
log.Fatal(err)
}
if err := db.View(
func(tx *nutsdb.Tx) error {
if items, err := tx.SDiffByTwoBuckets(bucket1, key1, bucket2, key2); err != nil {
return err
} else {
fmt.Println("SDiffByTwoBuckets:", items)
for _, item := range items {
fmt.Println("item", string(item))
}
}
return nil
}); err != nil {
log.Fatal(err)
}