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TOPK.COUNT

Last updated 
TOPK.COUNT key item [item ...]
Group
Top-K
Complexity
O(n * depth), n being the items
Arity
-1 (at least 1 words, counting the command name)
Flags
none
Keys
first 1, last 1, step 1
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TOPK.COUNT returns the estimated count of each item in the Top-K at key, whether or not the item is currently in the list. Estimates are approximate, especially for rare items; use TOPK.LIST WITHCOUNT for the counts of the listed items.

Return value

Section titled “Return value”

An array with one integer per item (0 for an item never seen), the same in RESP2 and RESP3.

Error replies: TopK: key does not exist, and WRONGTYPE if the key holds another type.

Examples

Section titled “Examples”
127.0.0.1:6379> TOPK.RESERVE trending 2 50 4 0.9
OK
127.0.0.1:6379> TOPK.INCRBY trending hotkv 10 redis 4
1) (nil)
2) (nil)
127.0.0.1:6379> TOPK.COUNT trending hotkv redis memcached
1) (integer) 10
2) (integer) 4
3) (integer) 0

Compatibility

Section titled “Compatibility”

Same as TOPK.COUNT in RedisBloom, where the command is deprecated in favor of TOPK.LIST WITHCOUNT. HotKV keeps it supported.

See also

Section titled “See also”

TOPK.LIST, TOPK.QUERY, TOPK.INCRBY