[Java] Configuration does not provide a mapping for array column
- Dominant language
- Java
- Stars
- 94
- Forks
- 152
- Avg merge
- 3d 16h
- Merged PRs (30d)
- 11
Description
I tried to leverage `org.apache.arrow.adapter.jdbc.JdbcToArrow.sqlToArrow` to query a Hive table but got the following error message on array columns.
`Configuration does not provide a mapping for array column 234`
The error message makes wondering whether it is possible to provided a customized configuration for array columns?
**Reporter**: [Benjamin Du](https://issues.apache.org/jira/browse/ARROW-10762)
#### Related issues:
- [[Java][JDBC] Allow users to config the mapping between SQL types and Arrow types](https://github.com/apache/arrow/issues/26465) (is blocked by)
**Note**: *This issue was originally created as [ARROW-10762](https://issues.apache.org/jira/browse/ARROW-10762). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*
Contributor guide
Research direction
Start at org.apache.arrow.adapter.jdbc.JdbcToArrow.sqlToArrow and inspect how array columns are mapped, then read the related issue about configuring mappings between SQL and Arrow types. Done means users can provide a customized mapping for array columns without the reported configuration error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, sql
- Domain
- database
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100