1 files changed, 17 insertions, 0 deletions
diff --git a/yql/essentials/sql/v1/sql_ut.cpp b/yql/essentials/sql/v1/sql_ut.cpp
index bd385c8feb5..d850dac37b5 100644
--- a/yql/essentials/sql/v1/sql_ut.cpp
+++ b/yql/essentials/sql/v1/sql_ut.cpp
@@ -969,6 +969,23 @@ Y_UNIT_TEST_SUITE(SqlParsingOnly) {
         UNIT_ASSERT_VALUES_EQUAL(1, elementStat["primarykey"]);
     }
 
+    Y_UNIT_TEST(AlterDatabaseAst) {
+        NYql::TAstParseResult request = SqlToYql("USE plato; ALTER DATABASE `/Root/test` OWNER TO user1;");
+        UNIT_ASSERT(request.IsOk());
+
+        TVerifyLineFunc verifyLine = [](const TString& word, const TString& line) {
+            Y_UNUSED(word);
+
+            UNIT_ASSERT_VALUES_UNEQUAL(TString::npos, line.find(
+                R"(let world (Write! world sink '('('mode 'alterDatabase) '('dbPath '/Root/test) '('owner ''"user1"))))"
+            ));
+        };
+
+        TWordCountHive elementStat({TString("\'mode \'alterDatabase")});
+        VerifyProgram(request, elementStat, verifyLine);
+        UNIT_ASSERT_VALUES_EQUAL(1, elementStat["\'mode \'alterDatabase"]);
+    }
+
     Y_UNIT_TEST(CreateTableNonNullableYqlTypeAstCorrect) {
         NYql::TAstParseResult res = SqlToYql("USE plato; CREATE TABLE t (a int32 not null);");
         UNIT_ASSERT(res.Root);