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From cloud-fan <...@git.apache.org>
Subject [GitHub] spark pull request #17064: [SPARK-19736][SQL] refreshByPath should clear all...
Date Tue, 28 Feb 2017 19:12:08 GMT
Github user cloud-fan commented on a diff in the pull request:

    https://github.com/apache/spark/pull/17064#discussion_r103528104
  
    --- Diff: sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala ---
    @@ -634,4 +634,28 @@ class CachedTableSuite extends QueryTest with SQLTestUtils with SharedSQLContext
           assert(getNumInMemoryRelations(cachedPlan2) == 4)
         }
       }
    +
    +  test("refreshByPath should refresh all cached plans with the specified path") {
    +    def f(path: String, spark: SparkSession, dataCount: Int): DataFrame = {
    +      spark.catalog.refreshByPath(path)
    +      val data = spark.read.parquet(path)
    +      assert(data.count == dataCount)
    +      val df = data.filter("id > 10")
    +      df.cache
    +      assert(df.count == dataCount - 11)
    +      val df1 = df.filter("id > 11")
    +      df1.cache
    +      assert(df1.count == dataCount - 12)
    +      df1
    +    }
    +
    +    withTempDir { dir =>
    +      val path = dir.getPath()
    --- End diff --
    
    we usually call `dir.getCanonicalPath`


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