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https://issues.apache.org/jira/browse/SPARK-18856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin resolved SPARK-18856.
---------------------------------
Resolution: Fixed
Assignee: Wenchen Fan
Fix Version/s: 2.1.0
> Newly created catalog table assumed to have 0 rows and 0 bytes
> --------------------------------------------------------------
>
> Key: SPARK-18856
> URL: https://issues.apache.org/jira/browse/SPARK-18856
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Wenchen Fan
> Priority: Blocker
> Fix For: 2.1.0
>
>
> {code}
> scala> spark.range(100).selectExpr("id % 10 p",
> "id").write.partitionBy("p").format("json").saveAsTable("testjson")
> scala> spark.table("testjson").queryExecution.optimizedPlan.statistics
> res6: org.apache.spark.sql.catalyst.plans.logical.Statistics =
> Statistics(sizeInBytes=0, isBroadcastable=false)
> {code}
> It shouldn't be 0. The issue is that in DataSource.scala, we do:
> {code}
> val fileCatalog = if
> (sparkSession.sqlContext.conf.manageFilesourcePartitions &&
> catalogTable.isDefined &&
> catalogTable.get.tracksPartitionsInCatalog) {
> new CatalogFileIndex(
> sparkSession,
> catalogTable.get,
> catalogTable.get.stats.map(_.sizeInBytes.toLong).getOrElse(0L))
> } else {
> new InMemoryFileIndex(sparkSession, globbedPaths, options,
> Some(partitionSchema))
> }
> {code}
> We shouldn't use 0L as the fallback.
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