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46 lines
1.4 KiB
46 lines
1.4 KiB
{
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"PFCOUNT": {
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"summary": "Return the approximated cardinality of the set(s) observed by the HyperLogLog at key(s).",
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"complexity": "O(1) with a very small average constant time when called with a single key. O(N) with N being the number of keys, and much bigger constant times, when called with multiple keys.",
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"group": "hyperloglog",
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"since": "2.8.9",
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"arity": -2,
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"function": "pfcountCommand",
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"command_flags": [
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"READONLY",
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"MAY_REPLICATE"
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],
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"acl_categories": [
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"HYPERLOGLOG"
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],
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"key_specs": [
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{
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"notes": "RW because it may change the internal representation of the key, and propagate to replicas",
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"flags": [
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"RW",
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"ACCESS"
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],
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"begin_search": {
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"index": {
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"pos": 1
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}
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},
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"find_keys": {
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"range": {
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"lastkey": -1,
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"step": 1,
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"limit": 0
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}
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}
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}
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],
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"arguments": [
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{
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"name": "key",
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"type": "key",
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"key_spec_index": 0,
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"multiple": true
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}
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]
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}
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}
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