BePPPower opened a new pull request, #14213:
URL: https://github.com/apache/doris/pull/14213
# Proposed changes
Issue Number: close #13959
This pr does two things:
1. support `hdfs()` table valued function.
2. add regression test
## Problem summary
Just like S3() table valued function, we can use `hdfs()` tvf to read file
in hdfs. Like this:
```
MySQL [(none)]> select * from hdfs("uri" =
"hdfs://127.0.0.1:842/user/doris/csv_format_test/student.csv", "fs.defaultFS" =
"hdfs://127.0.0.1:8424", "hadoop.username" = "xx", "format" = "csv");
+------+---------+------+
| c1 | c2 | c3 |
+------+---------+------+
| 1 | alice | 18 |
| 2 | bob | 20 |
| 3 | jack | 24 |
| 4 | jackson | 19 |
| 5 | liming | 18 |
| 6 | luffy | 20 |
| 7 | zoro | 22 |
| 8 | sanzi | 26 |
| 9 | wusuopu | 21 |
| 10 | nami | 18 |
+------+---------+------+
// Also support desc function hdfs()
MySQL [(none)]> desc function hdfs("uri" =
"hdfs://127.0.0.1:8424/user/doris/csv_format_test/student_with_names.csv",
"fs.defaultFS" = "hdfs://127.0.0.1:8424", "hadoop.username" = "xx", "format" =
"csv_with_names");
+-------+------+------+-------+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+------+------+-------+---------+-------+
| id | TEXT | Yes | false | NULL | NONE |
| name | TEXT | Yes | false | NULL | NONE |
| age | TEXT | Yes | false | NULL | NONE |
+-------+------+------+-------+---------+-------+
```
And `hdfs()` is also support
`csv/csv_with_names/csv_with_names_and_types/json/parquet/orc` file format.
## Checklist(Required)
1. Does it affect the original behavior:
- [x] Yes
- [ ] No
- [ ] I don't know
3. Has unit tests been added:
- [ ] Yes
- [x] No
- [ ] No Need
4. Has document been added or modified:
- [ ] Yes
- [x] No
- [ ] No Need
5. Does it need to update dependencies:
- [ ] Yes
- [x] No
6. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [x] 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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