morningman commented on pull request #3943:
URL: https://github.com/apache/incubator-doris/pull/3943#issuecomment-649591633
I am not familiar with this part. But following is the pseudocode I thought:
```
All DeleteConditions:
DeleteConditions 1: k1 = 1 and k2 = 2;
DeleteConditions 2: k1 = 4
DeleteConditions 3: k1 = 5
RowRanges result;
foreach(DeleteConditions dcs : All DeleteConditions) {
RowRanges rr;
foreach(DeleteCondition dc : dcs) {
rr = rr UNION (rows filtered by dc)
}
result = result INTERSECT rr;
}
return result;
```
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