Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/18824#discussion_r131059637 --- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala --- @@ -413,7 +414,10 @@ private[hive] class HiveClientImpl( unsupportedFeatures += "partitioned view" } - val properties = Option(h.getParameters).map(_.asScala.toMap).orNull + val properties = Option(h.getParameters).map(_.asScala.toMap).getOrElse(Map()) + + val provider = properties.get(HiveExternalCatalog.DATASOURCE_PROVIDER) + .orElse(Some(DDLUtils.HIVE_PROVIDER)) --- End diff -- Oh. Nvm. Looks like we access the key `DATASOURCE_PROVIDER` in `table.properties` for that purpose. This should be safe. Anyway, actually we will set `provider` for `CatalogTable` later when restoring the table read from metastore. Another concern is we previously don't restore `provider` for a view, please refer to https://github.com/apache/spark/blob/f18b905f6cace7686ef169fda7de474079d0af23/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala#L682. By this change, we will set `provider` to `HIVE_PROVIDER` too for view.
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