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From liancheng <>
Subject [GitHub] spark pull request: [SPARK-9689][SQL]Fix bug of not invalidate the...
Date Wed, 19 Aug 2015 15:24:37 GMT
Github user liancheng commented on a diff in the pull request:
    --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/CacheManager.scala ---
    @@ -97,13 +106,13 @@ private[sql] class CacheManager(sqlContext: SQLContext) extends Logging
           logWarning("Asked to cache already cached data.")
         } else {
           cachedData +=
    -        CachedData(
    +        new CachedData(
    -            sqlContext.executePlan(query.logicalPlan).executedPlan,
    +            sqlContext.executePlan(planToCache).executedPlan,
    --- End diff --
    I don't think we should change this line. For example, an existing Parquet dataset may
be overwritten, and the new dataset has a completely different schema. When this does happen,
the original code can catch the error by performing the analysis phase.

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