Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/22313#discussion_r214778954
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/orc/OrcFilters.scala
---
@@ -71,12 +71,24 @@ private[orc] object OrcFilters {
for {
// Combines all convertible filters using `And` to produce a single
conjunction
- conjunction <-
convertibleFilters.reduceOption(org.apache.spark.sql.sources.And)
+ conjunction <- buildTree(convertibleFilters)
--- End diff --
BTW, Parquet has another issue here due to `.reduceOption(FilterApi.and)`.
When I make a benchmark, Parquet seems to be unable to handle 1000 filters,
@cloud-fan .
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