SDIFF

Syntax text Syntax diagram API methods

SDIFF key [key ...]

Client:

sdiff(
    keys: List,
    *args: List
) → Union[Awaitable[list], list]

SDIFF(
    keys: RedisVariadicArgument
) → Any

sdiff(
    keys: String...
) → Set<String>  // A set with members of the resulting set

sdiff(
    keys: K...  // the keys.
) → Set<V>  // Long count of members of the resulting set.

sdiff(
    channel: ValueStreamingChannel<V>,  // the channel.
    keys: K...  // the keys.
) → Long  // Long count of members of the resulting set.

sdiff(
    keys: K...  // the keys.
) → RedisFuture<Set<V>>  // Long count of members of the resulting set.

sdiff(
    channel: ValueStreamingChannel<V>,  // the channel.
    keys: K...  // the keys.
) → RedisFuture<Long>  // Long count of members of the resulting set.

sdiff(
    keys: K...  // the keys.
) → Flux<V>  // Long count of members of the resulting set. @deprecated since 6.0 in favor of consuming large results through the org.reactivestreams.Publisher returned by #sdiff.

sdiff(
    channel: ValueStreamingChannel<V>,  // the channel.
    keys: K...  // the keys.
) → Mono<Long>  // Long count of members of the resulting set. @deprecated since 6.0 in favor of consuming large results through the org.reactivestreams.Publisher returned by #sdiff.

SDiff(
    ctx: context.Context,
    keys: ...string
) → *StringSliceCmd

SetCombine(
    operation: SetOperation,  // The operation to perform.
    first: RedisKey,
    second: RedisKey,
    flags: CommandFlags  // The flags to use for this operation.
) → RedisValue[]  // List with members of the resulting set.

SetCombine(
    operation: SetOperation,  // The operation to perform.
    keys: RedisKey[],  // The keys of the sets to operate on.
    flags: CommandFlags  // The flags to use for this operation.
) → RedisValue[]  // List with members of the resulting set.

SetCombine(
    operation: SetOperation,  // The operation to perform.
    first: RedisKey,
    second: RedisKey,
    flags: CommandFlags  // The flags to use for this operation.
) → RedisValue[]  // List with members of the resulting set.

SetCombine(
    operation: SetOperation,  // The operation to perform.
    keys: RedisKey[],  // The keys of the sets to operate on.
    flags: CommandFlags  // The flags to use for this operation.
) → RedisValue[]  // List with members of the resulting set.

SetCombine(
    operation: SetOperation,  // The operation to perform.
    first: RedisKey,
    second: RedisKey,
    flags: CommandFlags  // The flags to use for this operation.
) → RedisValue[]  // List with members of the resulting set.

SetCombine(
    operation: SetOperation,  // The operation to perform.
    keys: RedisKey[],  // The keys of the sets to operate on.
    flags: CommandFlags  // The flags to use for this operation.
) → RedisValue[]  // List with members of the resulting set.

SetCombine(
    operation: SetOperation,  // The operation to perform.
    first: RedisKey,
    second: RedisKey,
    flags: CommandFlags  // The flags to use for this operation.
) → RedisValue[]  // List with members of the resulting set.

SetCombine(
    operation: SetOperation,  // The operation to perform.
    keys: RedisKey[],  // The keys of the sets to operate on.
    flags: CommandFlags  // The flags to use for this operation.
) → RedisValue[]  // List with members of the resulting set.

sdiff(
    $keys: array|string
) → string[]

sdiff(
    keys: K
) → (HashSet<String>)

sdiff(
    keys: K
) → (HashSet<String>)

Available since:: Redis Open Source 1.0.0
Time complexity:: O(N) where N is the total number of elements in all given sets.
ACL categories:: @read, @set, @slow,
Compatibility:: Redis Software and Redis Cloud compatibility

Note:

This command's behavior varies in clustered Redis environments. See the multi-key operations page for more information.

Returns the members of the set resulting from the difference between the first set and all the successive sets.

For example:

key1 = {a,b,c,d}
key2 = {c}
key3 = {a,c,e}
SDIFF key1 key2 key3 = {b,d}

Keys that do not exist are considered to be empty sets.

Required arguments

key [key ...]

One or more set keys. The result is the members of the first set that are not present in any of the subsequent sets.

Examples

Redis Software and Redis Cloud compatibility

Redis Software	Redis Cloud	Notes
✅ Standard ✅ Active-Active	✅ Standard ✅ Active-Active

Return information

RESP2 RESP3

Array reply: a list with members of the resulting set.