Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/21882#discussion_r205734835
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/InMemoryTableScanExec.scala
---
@@ -183,6 +183,18 @@ case class InMemoryTableScanExec(
private val stats = relation.partitionStatistics
private def statsFor(a: Attribute) = stats.forAttribute(a)
+ // Currently, only use statistics from atomic types except binary type
only.
+ private object ExtractableLiteral {
+ def unapply(expr: Expression): Option[Literal] = expr match {
+ case lit: Literal => lit.dataType match {
+ case BinaryType => None
--- End diff --
can we also add test for binary type?
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