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Posted to derby-commits@db.apache.org by ma...@apache.org on 2013/11/12 22:51:31 UTC
svn commit: r1541252 -
/db/derby/code/branches/10.9/java/testing/org/apache/derbyTesting/functionTests/tests/lang/TriggerTest.java
Author: mamta
Date: Tue Nov 12 21:51:30 2013
New Revision: 1541252
URL: http://svn.apache.org/r1541252
Log:
DERBY-6383(Update trigger defined on one column fires on update of other columns)
backporting tests
Modified:
db/derby/code/branches/10.9/java/testing/org/apache/derbyTesting/functionTests/tests/lang/TriggerTest.java
Modified: db/derby/code/branches/10.9/java/testing/org/apache/derbyTesting/functionTests/tests/lang/TriggerTest.java
URL: http://svn.apache.org/viewvc/db/derby/code/branches/10.9/java/testing/org/apache/derbyTesting/functionTests/tests/lang/TriggerTest.java?rev=1541252&r1=1541251&r2=1541252&view=diff
==============================================================================
--- db/derby/code/branches/10.9/java/testing/org/apache/derbyTesting/functionTests/tests/lang/TriggerTest.java (original)
+++ db/derby/code/branches/10.9/java/testing/org/apache/derbyTesting/functionTests/tests/lang/TriggerTest.java Tue Nov 12 21:51:30 2013
@@ -1597,4 +1597,180 @@ public class TriggerTest extends BaseJDB
public static void derby4610proc(String str) {
// do nothing
}
+
+ /**
+ * DERBY-6383(Update trigger defined on one column fires on update
+ * of other columns). This regression is caused by DERBY-4874(Trigger
+ * does not recognize new size of VARCHAR column expanded with
+ * ALTER TABLE. It fails with ERROR 22001: A truncation error was
+ * encountered trying to shrink VARCHAR)
+ * The regression is for Statement level triggers. The trigger
+ * gets fired for any column update rather than just the column
+ * specified in the UPDATE of column clause. Following test
+ * confirms that fix for DERBY-6383 fixes the issue.
+ *
+ * @throws SQLException
+ *
+ */
+ public void testDerby6383StatementTriggerBugTst1() throws SQLException
+ {
+ Statement s = createStatement();
+ s.executeUpdate("CREATE TABLE DERBY_6368_TAB1 (X INTEGER, Y INTEGER)");
+ s.executeUpdate("CREATE TABLE DERBY_6368_TAB2 (X INTEGER, Y INTEGER)");
+ s.executeUpdate("INSERT INTO DERBY_6368_TAB1 VALUES(1, 2)");
+ //Create statement trigger on a specific column "X" on DERBY_6368_TAB1
+ s.executeUpdate("CREATE TRIGGER t1 AFTER UPDATE OF x "+
+ "ON DERBY_6368_TAB1 REFERENCING old table AS old " +
+ "INSERT INTO DERBY_6368_TAB2 SELECT * FROM old");
+ assertTableRowCount("DERBY_6368_TAB2", 0);
+
+ //Following should not fire the trigger since following UPDATE is on
+ // column "Y" whereas trigger is defined on column "X"
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET y = y + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 0);
+
+ //Create row trigger on a specific column "X" on DERBY_6368_TAB1
+ s.executeUpdate("CREATE TRIGGER t2 AFTER UPDATE OF x "+
+ "ON DERBY_6368_TAB1 REFERENCING old AS old_row " +
+ "for each row " +
+ "INSERT INTO DERBY_6368_TAB2(x) values(old_row.x)");
+
+ //Following should not fire any trigger since following UPDATE is on
+ // column "Y" whereas triggers are defined on column "X"
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET y = y + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 0);
+
+ //Following should fire both triggers since following UPDATE is on
+ // column "X" which has two triggers defined on it
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET x = x + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 2);
+
+ //Create statement trigger at table level for DERBY_6368_TAB1
+ s.executeUpdate("CREATE TRIGGER t3 AFTER UPDATE "+
+ "ON DERBY_6368_TAB1 REFERENCING old table AS old " +
+ "INSERT INTO DERBY_6368_TAB2 SELECT * FROM old");
+
+ //Following should fire trigger t3 which is supposed to fire for
+ // any column update
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET y = y + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 3);
+
+ //Following should fire all the triggers since following UPDATE is on
+ // column "X" which has two triggers defined on it
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET x = x + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 6);
+
+ //Add a new column to table
+ s.executeUpdate("ALTER TABLE DERBY_6368_TAB1 ADD COLUMN Z int");
+ s.executeUpdate("ALTER TABLE DERBY_6368_TAB2 ADD COLUMN Z int");
+
+ //Following should fire trigger t3 since any column update should fire
+ // trigger t3
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET z = z + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 7);
+
+ //Following should fire trigger t3 since any column update should fire
+ // trigger t3
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET y = y + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 8);
+
+ //Following should fire all the triggers since following UPDATE is on
+ // column "X" which has two triggers defined on it
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET x = x + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 11);
+
+ //drop statement trigger defined on specific column
+ s.executeUpdate("drop TRIGGER T1");
+
+ //Following should only fire trigger t3 since any column update should
+ // fire trigger t3
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET y = y + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 12);
+
+ //Following should fire triggers t2 and t3 since following UPDATE is on
+ // column "X" which has row trigger defined on it and a statement
+ // trigger(at table level) defined on it
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET x = x + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 14);
+
+ //Following should fire trigger t3 since any column update should fire
+ // trigger t3
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET z = z + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 15);
+
+ //Drop a column from the table. Following will drop trigger t3
+ // because it depends on column being dropped. But trigger t2
+ // will remain intact since it does not have dependency on
+ // column being dropped. So only trigger left at this point
+ // will be t2 after the following column drop
+ s.executeUpdate("ALTER TABLE DERBY_6368_TAB1 DROP COLUMN Y");
+ s.executeUpdate("ALTER TABLE DERBY_6368_TAB2 DROP COLUMN Y");
+
+ //Following should fire triggers t2 since following UPDATE is on
+ // column "X" which has row trigger defined on it
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET x = x + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 16);
+
+ //Following should not fire trigger t2
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET z = z + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 16);
+
+ //clean up after the test
+ s.executeUpdate("drop table DERBY_6368_TAB1");
+ s.executeUpdate("drop table DERBY_6368_TAB2");
+ }
+
+ /**
+ * DERBY-6383(Update trigger defined on one column fires on update
+ * of other columns). This regression is caused by DERBY-4874(Trigger
+ * does not recognize new size of VARCHAR column expanded with
+ * ALTER TABLE. It fails with ERROR 22001: A truncation error was
+ * encountered trying to shrink VARCHAR)
+ * After an update statement level trigger is defined at the table level,
+ * when a new column is added, trigger should fire on update of that
+ * newly added column
+ */
+ public void testDerby6383StatementTriggerBugTst2() throws SQLException
+ {
+ Statement s = createStatement();
+ s.executeUpdate("CREATE TABLE DERBY_6368_TAB1 (X INTEGER, Y INTEGER)");
+ s.executeUpdate("CREATE TABLE DERBY_6368_TAB2 (X INTEGER, Y INTEGER)");
+ s.executeUpdate("INSERT INTO DERBY_6368_TAB1 VALUES(1, 2)");
+
+ //Create statement trigger at table level for DERBY_6368_TAB1
+ s.executeUpdate("CREATE TRIGGER t1 AFTER UPDATE "+
+ "ON DERBY_6368_TAB1 REFERENCING old table AS old " +
+ "INSERT INTO DERBY_6368_TAB2 SELECT * FROM old");
+ assertTableRowCount("DERBY_6368_TAB2", 0);
+
+ //Following should fire trigger since any column update should fire
+ // trigger t1
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET x = x + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 1);
+
+ //Following should fire trigger since any column update should fire
+ // trigger t1
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET y = y + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 2);
+
+ //Add a new column to table
+ s.executeUpdate("ALTER TABLE DERBY_6368_TAB1 ADD COLUMN Z int");
+ s.executeUpdate("ALTER TABLE DERBY_6368_TAB2 ADD COLUMN Z int");
+ //Following should fire trigger since any column update should fire
+ // trigger t1
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET z = z + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 3);
+
+ //Drop a column from the table. this will drop the statement
+ // trigger defined at the table level for DERBY_6368_TAB1
+ s.executeUpdate("ALTER TABLE DERBY_6368_TAB1 DROP COLUMN X");
+ s.executeUpdate("ALTER TABLE DERBY_6368_TAB2 DROP COLUMN X");
+ //No triggers left to fire
+ s.executeUpdate("UPDATE DERBY_6368_TAB1 SET z = z + 1");
+ assertTableRowCount("DERBY_6368_TAB2", 3);
+
+ //clean up after the test
+ s.executeUpdate("drop table DERBY_6368_TAB1");
+ s.executeUpdate("drop table DERBY_6368_TAB2");
+ }
}