cloud-fan commented on code in PR #52764:
URL: https://github.com/apache/spark/pull/52764#discussion_r2471560848
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sql/core/src/main/scala/org/apache/spark/sql/execution/CacheManager.scala:
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@@ -365,6 +368,44 @@ class CacheManager extends Logging with
AdaptiveSparkPlanHelper {
}
}
+ private[sql] def lookupCachedTable(
+ name: Seq[String],
+ timeTravelSpec: Option[TimeTravelSpec],
+ conf: SQLConf): Option[LogicalPlan] = {
+ val cachedRelations = findCachedRelations(name, timeTravelSpec, conf)
+ cachedRelations match {
+ case cachedRelation +: _ =>
+ val nameWithTimeTravel = timeTravelSpec match {
+ case Some(spec) => s"${name.quoted} $spec"
+ case None => name.quoted
+ }
+ CacheManager.logCacheOperation(
+ log"Relation cache hit for table ${MDC(TABLE_NAME,
nameWithTimeTravel)}")
+ Some(cachedRelation)
Review Comment:
hmm we just return the first match? Shall we use the scan with the latest
table version?
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