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cheat.sheets/sheets/_redis/hyperloglog
2018-05-19 20:40:36 +00:00

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# Adds the specified elements to the specified HyperLogLog.
PFADD key element [element ...]
# Return the approximated cardinality of the set(s) observed by the HyperLogLog at key(s).
PFCOUNT key [key ...]
# Merge N different HyperLogLogs into a single one.
PFMERGE destkey sourcekey [sourcekey ...]