Github user yhuai commented on a diff in the pull request: https://github.com/apache/spark/pull/15900#discussion_r88289527 --- Diff: sql/hive/src/test/scala/org/apache/spark/sql/hive/MetastoreDataSourcesSuite.scala --- @@ -1371,4 +1371,23 @@ class MetastoreDataSourcesSuite extends QueryTest with SQLTestUtils with TestHiv } } } + + test("SPARK-18464: support old table which doesn't store schema in table properties") { + withTable("old") { + withTempPath { path => + Seq(1 -> "a").toDF("i", "j").write.parquet(path.getAbsolutePath) + val tableDesc = CatalogTable( + identifier = TableIdentifier("old", Some("default")), + tableType = CatalogTableType.EXTERNAL, + storage = CatalogStorageFormat.empty.copy( + properties = Map("path" -> path.getAbsolutePath) + ), + schema = new StructType(), + properties = Map( + HiveExternalCatalog.DATASOURCE_PROVIDER -> "parquet")) + hiveClient.createTable(tableDesc, ignoreIfExists = false) + checkAnswer(spark.table("old"), Row(1, "a")) --- End diff -- Can we also test `describe table` and make sure it can provide correct column info?
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