Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/10427#discussion_r48231102
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCRelation.scala
---
@@ -90,6 +90,19 @@ private[sql] case class JDBCRelation(
override val schema: StructType = JDBCRDD.resolveTable(url, table,
properties)
+ // Check if JDBCRDD#compileFilter can accept input filters
+ override def unhandledFilters(filters: Array[Filter]): Array[Filter] = {
+ filters.filterNot(canCompileFilter)
+ }
+
+ private def canCompileFilter(filter: Filter): Boolean = filter match {
+ case EqualTo(_, _) | Not(EqualTo(_, _)) => true
+ case LessThan(_, _) | LessThanOrEqual(_, _) => true
+ case GreaterThan(_, _) | GreaterThanOrEqual(_, _) => true
+ case IsNull(_) | IsNotNull(_) => true
+ case _ => false
--- End diff --
Can this push down `And`?
As far as I know `JDBCRelation` pushes down `And` filter as well when `Or`
is not given.
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