suxiaogang223 opened a new pull request, #64451:
URL: https://github.com/apache/doris/pull/64451
### What problem does this PR solve?
This PR refactors the new parquet reader complex-column path around schema
projection and reader creation.
It clarifies `ParquetColumnReaderFactory` recursion, keeps schema projection
as a single public helper, normalizes file-local `ColumnDefinition` children to
Doris semantic children, and folds the Parquet MAP `key_value/entry` wrapper
into the MAP schema node during parquet schema construction. With that shape,
MAP and LIST both expose direct semantic children to the table/file reader
boundary, and ParquetReader no longer needs a semantic-to-physical projection
translation layer for MAP.
### Release note
None
### Check List
- Test: Manual test
- Ran `git diff --check`.
- Tried `./run-be-ut.sh -j 8 --run
--filter="ParquetColumnReaderTest.ReadProjectedMapStructValueChildren:ColumnMapperScanRequestTest.MapValueStructProjectionPrunesValueChildren"`,
but local toolchain failed before tests with `ld: library 'c++' not found`.
- Behavior changed: No
- Does this need documentation: No
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
