Enables predicates collecting their referred columns
- Dominant language
- Java
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Description
Sometimes we need to collect the columns referred by the predicates to, say, do validation.
This issue propose to enable all 3 FilterCompats to collect the referred columns.
**Reporter**: [Liwei Lin(Inactive)](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=proflin) / @lw-lin
**Assignee**: [Liwei Lin(Inactive)](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=proflin) / @lw-lin
**Note**: *This issue was originally created as [PARQUET-429](https://issues.apache.org/jira/browse/PARQUET-429). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*
Contributor guide
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Research direction
Start by locating the three FilterCompat implementations named in the issue and inspect how their predicates are represented. Determine how each should expose every referred column for validation; done means all three implementations collect those columns, with coverage for the predicate cases involved.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- data
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100