try {
UpdatableSchema schema4 = db.createSchema("schema4", "schema1a");
Schema s = schema4.resolve();
assertEquals("prop1", s.getAttributeDefinition(1, true).getName());
schema4.addAttribute(1);
schema4.eraseAttribute(1);
assertEquals(true, schema4.getAttributeDefinition(1, true).isErasing());
assertEquals("fou", s.getSeriesDefinition(1, true).getName());
schema4.setAttributeProperty(1, db.getProperty("prop1", true));
schema4.setAttributeDefault(1, "t1v1");
schema4.applyUpdates();