Tanya-W opened a new pull request, #13035:
URL: https://github.com/apache/doris/pull/13035
# Proposed changes
Issue Number: close #xxx
## Problem summary
Current bitmap index only can apply pushed down predicates which in AND
conditions. When predicates in OR conditions and other complex compound
conditions, it will not be pushed down to the storage layer, this leads to read
more data.
Based on that situation, this pr will do:
1. this pr in order to support bitmap index apply OR predicates, but now
only optimize that predicates all in OR compound conditions, query sql like:
```
select * from tb where a > 'hello' or b < 100;
select * from tb where a > 'hello' or b < 100 or c > 'ok';
select * from tb where (a > 'hello' or b <100) and (a < 'world' or b > 200);
...
```
above sql，column `a` and `b` has created bitmap_index.
2. this optimization can reduce reading data by index
3. set config `enable_index_apply_or_predicates` to use this optimization
## Checklist(Required)
1. Does it affect the original behavior:
- [ ] Yes
- [ ] No
- [ ] I don't know
4. Has unit tests been added:
- [ ] Yes
- [ ] No
- [ ] No Need
5. Has document been added or modified:
- [ ] Yes
- [ ] No
- [ ] No Need
6. Does it need to update dependencies:
- [ ] Yes
- [ ] No
7. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [ ] No
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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