Jibing-Li opened a new pull request, #16111:
URL: https://github.com/apache/doris/pull/16111
# Proposed changes
Issue Number: close #xxx
External catalog table column names in doris are all in lower case, while
iceberg table or spark-sql created hive table may contain upper case column
name, which will case empty query result. This pr is to fix this bug.
For parquet file, transfer all column names to lower case while parse
parquet metadata.
For orc file, store the origin column names and lower case column names in
two vectors, use the suitable names in different cases.
Describe your changes.
## Checklist(Required)
1. Does it affect the original behavior:
- [ ] Yes
- [ ] No
- [ ] I don't know
2. Has unit tests been added:
- [ ] Yes
- [ ] No
- [ ] No Need
3. Has document been added or modified:
- [ ] Yes
- [ ] No
- [ ] No Need
4. Does it need to update dependencies:
- [ ] Yes
- [ ] No
5. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [ ] No
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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