/** * Copyright (C) 2009-2013 FoundationDB, LLC * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.foundationdb.server.test.it.dxl; import com.foundationdb.server.test.it.ITBase; import com.google.common.base.Strings; import org.junit.Test; public final class AlterTableWithLargeVarcharIT extends ITBase { @Test public void reallocation() { int tableId = createTable("myschema", "mytable", "id INT NOT NULL PRIMARY KEY", "vc_col0 VARCHAR(500), vc_col1 VARCHAR(500)"); String bigString = Strings.repeat("a", 476); writeRow(tableId, 1L, bigString, "hi"); // bigString is large enough that "hi" has an offset of 499 in the RowData byte array. // When we add 5 null ints to the RowData, the nullmap will grow such that "hi" has an offset of 500, // at which point it'll need to regrow. for (int i = 0; i < 6; ++i) { runAlter("myschema", null, "alter table mytable add intcol_" + i + " INTEGER"); } } }