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Redis Transactions, Pub/Sub, and Streams Cheat Sheet/Add elements to HyperLogLog

Approximate cardinality of unique items.

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Section: Geo, bitmaps, and HyperLogLog

Add elements to HyperLogLog

bash
bash
PFADD unique:visitors user:1 user:2 user:3

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Related commands

Same sheet · prioritizing Geo, bitmaps, and HyperLogLog
Estimate unique count
Read approximate unique cardinality.
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Merge HyperLogLogs
Merge approximate cardinality structures.
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Add geospatial members
Store longitude/latitude points in a sorted set.
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Read geospatial coordinates
Return stored coordinates for members.
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Measure distance between members
Compute the distance between two members.
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Find nearby members
Find nearby members around coordinates.
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