amaliujia commented on code in PR #36641:
URL: https://github.com/apache/spark/pull/36641#discussion_r894880544
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sql/core/src/test/scala/org/apache/spark/sql/internal/CatalogSuite.scala:
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@@ -681,4 +681,60 @@ class CatalogSuite extends SharedSparkSession with
AnalysisTest with BeforeAndAf
assert(spark.catalog.listTables("default").collect().map(_.name).toSet ==
Set("my_table1", "my_table2", "my_temp_table"))
}
+
+ test("three layer namespace compatibility - get table") {
+ val catalogName = "testcat"
+ val dbName = "my_db"
+ val tableName = "my_table"
+ val tableSchema = new StructType().add("i", "int")
+ val description = "this is a test table"
+
+ spark.catalog.createTable(
+ tableName = Array(catalogName, dbName, tableName).mkString("."),
+ source = classOf[FakeV2Provider].getName,
+ schema = tableSchema,
+ description = description,
+ options = Map.empty[String, String])
+
+ val t = spark.catalog.getTable(Array(catalogName, dbName,
tableName).mkString("."))
+ val expectedTable =
+ new Table(
+ tableName,
+ catalogName,
+ Array(dbName),
+ description,
+ CatalogTableType.MANAGED.name,
+ false)
+ assert(expectedTable.toString == t.toString)
+ }
+
+ test("three layer namespace compatibility - table exists") {
+ val catalogName = "testcat"
+ val dbName = "my_db"
+ val tableName = "my_table"
+ val tableSchema = new StructType().add("i", "int")
+
+ assert(!spark.catalog.tableExists(Array(catalogName, dbName,
tableName).mkString(".")))
+
+ spark.catalog.createTable(
+ tableName = Array(catalogName, dbName, tableName).mkString("."),
+ source = classOf[FakeV2Provider].getName,
+ schema = tableSchema,
+ description = "",
+ options = Map.empty[String, String])
+
+ assert(spark.catalog.tableExists(Array(catalogName, dbName,
tableName).mkString(".")))
+ }
+
+ test("three layer namespace compatibility - database exists") {
+ val catalogName = "testcat"
+ val dbName = "my_db"
+ assert(!spark.catalog.databaseExists(Array(catalogName,
dbName).mkString(".")))
+
+ val e = intercept[CatalogNotFoundException] {
+ val catalogName2 = "catalog_not_exists"
+ spark.catalog.databaseExists(Array(catalogName2, dbName).mkString("."))
+ }
+ assert(e.getMessage.contains("catalog_not_exists is not defined"))
Review Comment:
I didn't find a create namespace call in Catalog API so not sure how to
create a DB and test positive case
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