/**
* 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.qp;
import com.foundationdb.qp.expression.IndexKeyRange;
import com.foundationdb.qp.operator.API;
import com.foundationdb.qp.operator.Cursor;
import com.foundationdb.qp.operator.Operator;
import com.foundationdb.qp.row.OverlayingRow;
import com.foundationdb.qp.row.Row;
import com.foundationdb.qp.rowtype.IndexRowType;
import com.foundationdb.qp.rowtype.RowType;
import com.foundationdb.qp.rowtype.Schema;
import com.foundationdb.server.api.dml.SetColumnSelector;
import com.foundationdb.server.types.value.ValueSources;
import org.junit.Ignore;
import org.junit.Test;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static com.foundationdb.qp.operator.API.cursor;
import static com.foundationdb.qp.operator.API.indexScan_Default;
import static com.foundationdb.server.test.ExpressionGenerators.field;
import static org.junit.Assert.assertEquals;
public class IndexScanJumpUnboundedIT extends OperatorITBase
{
@Override
protected void setupCreateSchema()
{
t = createTable(
"schema", "t",
"id int not null primary key",
"a int",
"b int",
"c int");
createIndex("schema", "t", "idx", "a", "b", "c", "id");
}
@Override
protected void setupPostCreateSchema()
{
tRowType = schema.tableRowType(table(t));
idxRowType = indexType(t, "a", "b", "c", "id");
db = new Row[] {
row(t, 1000L, null, null, null),
row(t, 1001L, null, null, 5L),
row(t, 1002L, null, 4L, null),
row(t, 1003L, null, 4L, 5L),
row(t, 1010L, 1L, 11L, 111L),
row(t, 1011L, 1L, 11L, 112L),
row(t, 1012L, 1L, 12L, 121L),
row(t, 1013L, 1L, 12L, 122L),
row(t, 1020L, 2L, 21L, 211L),
row(t, 1021L, 2L, 21L, 212L),
row(t, 1022L, 2L, 22L, 221L),
row(t, 1023L, 2L, 22L, 222L),
row(t, 1030L, 3L, null, null),
row(t, 1031L, 3L, null, 5L),
row(t, 1032L, 3L, 4L, null),
row(t, 1033L, 3L, 4L, 5L),
};
queryContext = queryContext(adapter);
queryBindings = queryContext.createBindings();
use(db);
for (Row row : db) {
indexRowMap.put(ValueSources.getLong(row.value(0)),
new TestRow(tRowType,
ValueSources.toObject(row.value(1)), // a
ValueSources.toObject(row.value(2)), // b
ValueSources.toObject(row.value(3)), // c
ValueSources.toObject(row.value(0)))); // id
}
}
@Test
public void testAAAA()
{
Operator plan = indexScan_Default(idxRowType, unbounded(), ordering(A, ASC, B, ASC, C, ASC, ID, ASC));
long[] idOrdering = longs(1000, 1001, 1002, 1003,
1010, 1011, 1012, 1013,
1020, 1021, 1022, 1023,
1030, 1031, 1032, 1033);
Cursor cursor = cursor(plan, queryContext, queryBindings);
cursor.openTopLevel();
testJump(cursor, idOrdering, 0);
testJump(cursor, idOrdering, -1);
cursor.closeTopLevel();
}
@Test
public void testDDDD()
{
Operator plan = indexScan_Default(idxRowType, unbounded(), ordering(A, DESC, B, DESC, C, DESC, ID, DESC));
long[] idOrdering = longs(1033, 1032, 1031, 1030,
1023, 1022, 1021, 1020,
1013, 1012, 1011, 1010,
1003, 1002, 1001, 1000);
Cursor cursor = cursor(plan, queryContext, queryBindings);
cursor.openTopLevel();
testJump(cursor, idOrdering, 0);
testJump(cursor, idOrdering, 1);
cursor.closeTopLevel();
}
private void testJump(Cursor cursor, long[] idOrdering, int nudge)
{
for (int start = 0; start < idOrdering.length; start++) {
TestRow target = indexRow(idOrdering[start]);
// Add nudge to last field
OverlayingRow nudgedTarget = new OverlayingRow(target);
nudgedTarget.overlay(3, ((long)target.value(3).getInt32() + nudge));
cursor.jump(nudgedTarget, INDEX_ROW_SELECTOR);
Row row;
List<Long> actualIds = new ArrayList<>();
while ((row = cursor.next()) != null) {
actualIds.add((long)row.value(3).getInt32());
}
List<Long> expectedIds = new ArrayList<>();
for (int i = start; i < idOrdering.length; i++) {
expectedIds.add(idOrdering[i]);
}
assertEquals(expectedIds, actualIds);
}
}
private TestRow indexRow(long id)
{
return indexRowMap.get(id);
}
private long[] longs(long... longs)
{
return longs;
}
private IndexKeyRange unbounded()
{
return IndexKeyRange.unbounded(idxRowType);
}
private API.Ordering ordering(Object... ord) // alternating column positions and asc/desc
{
API.Ordering ordering = API.ordering();
int i = 0;
while (i < ord.length) {
int column = (Integer) ord[i++];
boolean asc = (Boolean) ord[i++];
ordering.append(field(idxRowType, column), asc);
}
return ordering;
}
// Positions of fields within the index row
private static final int A = 0;
private static final int B = 1;
private static final int C = 2;
private static final int ID = 3;
private static final boolean ASC = true;
private static final boolean DESC = false;
private static final SetColumnSelector INDEX_ROW_SELECTOR = new SetColumnSelector(0, 1, 2, 3);
private int t;
private RowType tRowType;
private IndexRowType idxRowType;
private Map<Long, TestRow> indexRowMap = new HashMap<>();
}