BF.MEXISTS

Syntax text Syntax diagram API methods

BF.MEXISTS key item [item ...]

Client:

mexists(
    key: str,  // The name of the Bloom filter
    *items: str  // Items to check
) → list  // List of booleans indicating if each item may exist

BF.MEXISTS(
    key: RedisArgument,  // The name of the Bloom filter
    items: RedisVariadicArgument  // Items to check
) → boolean[]  // Array of booleans

bfMExists(
    key: String,  // The name of the Bloom filter
    items: String...  // Items to check
) → List<Boolean>  // List of booleans

BFMExists(
    ctx: context.Context,  // Context
    key: string,  // The name of the Bloom filter
    elements: ...interface{}  // Items to check
) → *BoolSliceCmd  // Boolean slice command result

MExists(
    key: RedisKey,  // The name of the Bloom filter
    items: RedisValue[]  // Items to check
) → bool[]  // Array of booleans

MExistsAsync(
    key: RedisKey,  // The name of the Bloom filter
    items: RedisValue[]  // Items to check
) → Task<bool[]>  // Array of booleans

bfmexists(
    $key: string,  // The name of the Bloom filter
    $item: ...  // Items to check
) → array  // Array of booleans

bf_mexists(
    key: K,  // The name of the Bloom filter
    items: &[V]  // The items to check for
) → (Vec<bool>)  // For each item, true if it may exist, false if it definitely does not

bf_mexists(
    key: K,  // The name of the Bloom filter
    items: &[V]  // The items to check for
) → (Vec<bool>)  // For each item, true if it may exist, false if it definitely does not

Available in:: Redis Open Source / Bloom 1.0.0
Time complexity:: O(k * n), where k is the number of hash functions and n is the number of items
ACL categories:: @bloom, @read, @slow,
Compatibility:: Redis Software and Redis Cloud compatibility

Determines whether one or more items were added to a Bloom filter.

This command is similar to BF.EXISTS, except that more than one item can be checked.

Required arguments

key

is key name for a Bloom filter.

item...

One or more items to check.

Examples

Redis Software and Redis Cloud compatibility

Redis Software	Redis Cloud	Notes
✅ Supported	✅ Flexible & Annual ✅ Free & Fixed

Return information

RESP2 RESP3

One of the following:

An array of integers, where each element corresponds to an item in the request. A value of 1 means the item was probably already added to the filter. A value of 0 means the item was definitely not added, key does not exist, or key contains a value of the wrong type.
Simple error reply if invalid arguments are passed.