clairemcginty opened a new pull request, #1328:
URL: https://github.com/apache/parquet-mr/pull/1328
Proposal to add new FilterPredicates, `contains` and `doesNotContain`, that
can be applied to List types, and check if the specified element is present
among the repeated values:
```java
FilterPredicate predicate = FilterApi.contains(
FilterApi.arrayColumn(FilterApi.binaryColumn("phoneNumbers.phone.kind")),
Binary.fromString("cell")
)
```
The filtering logic is largely based on existing Eq/In predicates to apply
filtering at the page/rowgroup level using statistics/dictionaries, with a
specialized implementation in `IncrementallyUpdatedFilterPredicateBuilder` to
do individual record-level filtering.
### Jira
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