[SPARK-23259][SQL] Clean up legacy code around hive external catalog and HiveClientImpl #20425
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What changes were proposed in this pull request?
Three legacy statements are removed by this patch:
in HiveExternalCatalog: The
withClient
wrapper is not necessary for the private methodgetRawTable
.in HiveClientImpl: The statement
runSqlHive()
is not necessary for theaddJar
method, after the jar being added to the single class loader.in HiveClientImpl: There are some redundant code in both the
tableExists
andgetTableOption
method.How was this patch tested?
Existing tests
Please review http://spark.apache.org/contributing.html before opening a pull request.