hoshinojyunn opened a new pull request, #61331:
URL: https://github.com/apache/doris/pull/61331
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
The 'variant' column in the table contains data; however, when querying the
space occupied by each column in the table, the following query reveals that
the space usage for the 'variant' column consistently appears as 0:
```sql
SELECT
COLUMN_NAME,
sum(COMPRESSED_DATA_BYTES) AS compressed_data_bytes,
sum(UNCOMPRESSED_DATA_BYTES) AS uncompressed_data_bytes,
sum(RAW_DATA_BYTES) as raw_data_bytes
FROM information_schema.column_data_sizes WHERE table_id={table_id}
GROUP BY COLUMN_NAME, COLUMN_TYPE
ORDER BY compressed_data_bytes
desc;
```
Fix:
Implement three methods in `VariantDocWriter`, `UnifiedSparseColumnWriter`,
`VariantDocCompactWriter`, and `VariantColumnWriterImpl` to align with the
`ColumnWriter` interface:
```cpp
uint64_t get_raw_data_bytes() const;
uint64_t get_total_uncompressed_data_pages_bytes() const;
uint64_t get_total_compressed_data_pages_bytes() const;
```
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] 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:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] 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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