0AyanamiRei opened a new pull request, #65631:
URL: https://github.com/apache/doris/pull/65631
### What problem does this PR solve?
Issue Number: None
Related PR: #64933
Problem Summary: Backport the `information_schema.tables` column-pruning and
single-pass table-status statistics optimization from #64933 to `branch-4.1`.
Source merge commit: `058dfd3794aca46617766173ced5ac5574efff94`.
### Conflict resolution
- The only content conflict was the import block of
`FrontendServiceImplTest`.
- Preserved `branch-4.1`'s JMockit `@Mocked ExecuteEnv` dependency and added
the Guava `Sets` import required by the new mixed-case required-column test.
- Kept imports in the order expected by branch-4.1 Checkstyle.
- All production, Thrift, FE unit-test, and regression-test hunks from the
source PR are otherwise retained unchanged.
The resulting backport retains the source behavior: lightweight projections
skip tablet-derived status work, while full status queries compute
row/data/index statistics in one tablet traversal.
### Release note
None
### Check List (For Author)
- Test: No need to test (one-time Agent conflict-resolution workflow; build
and test execution were intentionally excluded)
- `build-support/clang-format.sh`
- `build-support/check-format.sh`
- `git diff HEAD^ HEAD --check`
- Behavior changed: No
- Does this need documentation: No
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