seawinde opened a new pull request, #46368:
URL: https://github.com/apache/doris/pull/46368
### What problem does this PR solve?
If we create async materialized view on single external table, then we query
the external table with filter or aggregate directly. though rewritten by mv
successfully, but CBO could not chose the mv.
such as mv def is as following:
```sql
CREATE MATERIALIZED VIEW ${mv_name}
BUILD IMMEDIATE REFRESH COMPLETE ON MANUAL
DISTRIBUTED BY RANDOM BUCKETS 2
PROPERTIES ('replication_num' = '1')
AS
select o_custkey, o_orderdate
from ${hive_catalog_name}.${hive_database}.${hive_table}
```
query is as following:
```sql
select o_custkey
from ${hive_catalog_name}.${hive_database}.${hive_table}
where o_custkey > 2;
```
the pr support this.
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
Chose mv more easier when mv on external table
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [x] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [x] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [x] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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