eldenmoon opened a new pull request, #47629:
URL: https://github.com/apache/doris/pull/47629
/*
* SchemaCloudDictionaryCache provides a local cache for
SchemaCloudDictionary. *
* Caching logic:
* - If the dictionary associated with a given key has not had any new
columns added
* (determined by comparing the serialized data for consistency),
* the cached dictionary is directly used to update the dictionary list
in the rowset meta
* (similar to the process_dictionary logic in write_schema_dict).
* - If new columns have been detected, the local cache is disregarded, and
the updated
* dictionary should be fetched via the meta service.
*/
use SchemaCloudDictionaryCache in Backend to reduce the frequency of reading
and converting SchemaCloudDictionary in MetaService
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
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- [ ] Unit Test
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- [ ] 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:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
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