keypointt commented on a change in pull request #25536: [SPARK-28837][SQL]
CTAS/RTAS should use nullable schema
URL: https://github.com/apache/spark/pull/25536#discussion_r316375071
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/sources/v2/DataSourceV2SQLSuite.scala
##########
@@ -500,6 +499,32 @@ class DataSourceV2SQLSuite extends QueryTest with
SharedSparkSession with Before
assert(t.isInstanceOf[UnresolvedTable], "V1 table wasn't returned as an
unresolved table")
}
+ test("CreateTableAsSelect: nullable schema") {
+ val basicCatalog = catalog("testcat").asTableCatalog
+ val atomicCatalog = catalog("testcat_atomic").asTableCatalog
+ val basicIdentifier = "testcat.table_name"
+ val atomicIdentifier = "testcat_atomic.table_name"
+
+ Seq((basicCatalog, basicIdentifier), (atomicCatalog,
atomicIdentifier)).foreach {
+ case (catalog, identifier) =>
+ spark.sql(s"CREATE TABLE $identifier USING foo AS SELECT 1 i")
+
+ val table = catalog.loadTable(Identifier.of(Array(), "table_name"))
Review comment:
in your PR https://github.com/apache/spark/pull/25507/files
`DataSourceV2DataFrameSessionCatalogSuite.scala`, there is a class variable
`v2Format` being referenced by all test cases
```
protected val v2Format: String = classOf[InMemoryTableProvider].getName
```
so I thought it's a style convention...
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