Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/18160#discussion_r119751315
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceStrategy.scala
---
@@ -370,18 +368,26 @@ case class DataSourceStrategy(conf: SQLConf) extends
Strategy with Logging with
// These metadata values make scan plans uniquely identifiable for
equality checking.
// TODO(SPARK-17701) using strings for equality checking is brittle
val metadata: Map[String, String] = {
- val pairs = ArrayBuffer.empty[(String, String)]
-
+ val schemaString =
StructType.fromAttributes(projects.map(_.toAttribute)).catalogString
// Mark filters which are handled by the underlying DataSource with
an Astrisk
- if (pushedFilters.nonEmpty) {
- val markedFilters = for (filter <- pushedFilters) yield {
+ relation match {
+ case LogicalRelation(_: CatalystScan, _, _) if
candidatePredicates.nonEmpty =>
+ val markedPredicates = for (predicate <- candidatePredicates)
yield {
+ if (handledPredicates.contains(predicate)) s"*$predicate" else
s"$predicate"
+ }
+ Map(
+ "PushedCatalystFilters" -> markedPredicates.mkString("[", ",
", "]"),
--- End diff --
Yes, I think all filters (if exists) are pushed for `CatalystScan` and
these are catalyst ones -
https://github.com/apache/spark/blob/f3ed62a381897711d86fde27ab80bb70ed0b0513/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceStrategy.scala#L271-L272.
So, I intended to put them in `PushedCatalystFilters`.
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