zuochunwei commented on a change in pull request #6625:
URL: https://github.com/apache/incubator-doris/pull/6625#discussion_r708987284
##########
File path: be/src/olap/hll.cpp
##########
@@ -363,53 +427,53 @@ int64_t HyperLogLog::estimate_cardinality() const {
// there are relatively large fluctuations, we fixed the problem refer
to redis.
double bias = 5.9119 * 1.0e-18 * (estimate * estimate * estimate *
estimate) -
1.4253 * 1.0e-12 * (estimate * estimate * estimate) +
- 1.2940 * 1.0e-7 * (estimate * estimate) - 5.2921 *
1.0e-3 * estimate +
- 83.3216;
+ 1.2940 * 1.0e-7 * (estimate * estimate) -
+ 5.2921 * 1.0e-3 * estimate + 83.3216;
estimate -= estimate * (bias / 100);
}
return (int64_t)(estimate + 0.5);
}
void HllSetResolver::parse() {
// skip LengthValueType
- char* pdata = _buf_ref;
+ char* pdata = _buf_ref;
Review comment:
ok
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