Statement.getGeneratedKeys() returned the wrong value sometimes.

h2/src/test/org/h2/test/jdbc/TestPreparedStatement.java

@@ -20,7 +20,7 @@ import java.sql.Statement;
 import java.sql.Timestamp;
 import java.sql.Types;
 import java.util.UUID;
-
+import org.h2.api.Trigger;
 import org.h2.test.TestBase;
 
 /**
@@ -44,6 +44,7 @@ public class TestPreparedStatement extends TestBase {
         deleteDb("preparedStatement");
         Connection conn = getConnection("preparedStatement");
         testUUID(conn);
+        testScopedGeneratedKey(conn);
         testLobTempFiles(conn);
         testExecuteErrorTwice(conn);
         testTempView(conn);
@@ -330,6 +331,37 @@ public class TestPreparedStatement extends TestBase {
         stat.execute("DROP TABLE TEST_UUID");
     }
 
+    /**
+     * A trigger that creates a sequence value.
+     */
+    public static class SequenceTrigger implements Trigger {
+
+        public void fire(Connection conn, Object[] oldRow, Object[] newRow) throws SQLException {
+            conn.setAutoCommit(false);
+            conn.createStatement().execute("call next value for seq");
+        }
+
+        public void init(Connection conn, String schemaName, String triggerName, String tableName, boolean before,
+                int type) {
+            // ignore
+        }
+
+    }
+
+    private void testScopedGeneratedKey(Connection conn) throws SQLException {
+        Statement stat = conn.createStatement();
+        Trigger t = new SequenceTrigger();
+        stat.execute("create table test(id identity)");
+        stat.execute("create sequence seq start with 1000");
+        stat.execute("create trigger test_ins after insert on test call \"" + t.getClass().getName() + "\"");
+        stat.execute("insert into test values(null)");
+        ResultSet rs = stat.getGeneratedKeys();
+        rs.next();
+        assertEquals(1, rs.getLong(1));
+        stat.execute("drop sequence seq");
+        stat.execute("drop table test");
+    }
+
     private void testSetObject(Connection conn) throws SQLException {
         Statement stat = conn.createStatement();
         stat.execute("CREATE TABLE TEST(C CHAR(1))");