Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/15423#discussion_r84204534
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/command/DDLSuite.scala
---
@@ -1713,4 +1713,21 @@ class DDLSuite extends QueryTest with
SharedSQLContext with BeforeAndAfterEach {
assert(sql("show user functions").count() === 1L)
}
}
+
+ test("show columns - negative test") {
+ // When case sensitivity is true, the user supplied database name in
table identifier
+ // should match the supplied database name in case sensitive way.
+ withSQLConf(SQLConf.CASE_SENSITIVE.key -> "true") {
+ withTempDatabase { db =>
+ val tabName = s"$db.showcolumn"
+ withTable(tabName) {
+ sql(s"CREATE TABLE $tabName(col1 int, col2 string) USING parquet
")
+ val message = intercept[AnalysisException] {
+ sql(s"SHOW COLUMNS IN $db.showcolumn FROM ${db.toUpperCase}")
--- End diff --
nit: wrong ident here.
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