[
https://issues.apache.org/jira/browse/SPARK-27699?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Apache Spark reassigned SPARK-27699:
------------------------------------
Assignee: Apache Spark
> Partially push down disjunctive predicated in Parquet/ORC
> ---------------------------------------------------------
>
> Key: SPARK-27699
> URL: https://issues.apache.org/jira/browse/SPARK-27699
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Gengliang Wang
> Assignee: Apache Spark
> Priority: Major
>
> Currently, in `ParquetFilters` and `OrcFilters`, if the child predicate of
> `Or` operator can't be entirely pushed down, the predicates will be thrown
> away.
> In fact, the conjunctive predicates under `Or` operators can be partially
> pushed down.
> For example, says `a` and `b` are convertible, while `c` can't be pushed
> down, the predicate
> `a or (b and c)`
> can be converted as
> `(a or b) and (a or c)`
> We can still push down `(a or b)`.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
