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h2database
提交 7703ad26 authored 作者: Andrei Tokar's avatar Andrei Tokar
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Modify uniqness check in MVSecondaryIndex to use upper-bounded cursor 

Push upper bound check from MVStoreCursor down to underlying map cursor
Propagate database compatibility mode down to Value comparison operation
上级 00478174
隐藏空白字符变更
内嵌 并排
正在显示 包含 89 行增加 和 151 行删除
h2/src/main/org/h2/mvstore/db/MVPlainTempResult.java
浏览文件 @ 7703ad26
...@@ -60,7 +60,7 @@ class MVPlainTempResult extends MVTempResult { ...@@ -60,7 +60,7 @@ class MVPlainTempResult extends MVTempResult {
*/ */
MVPlainTempResult(Database database, Expression[] expressions, int visibleColumnCount) { MVPlainTempResult(Database database, Expression[] expressions, int visibleColumnCount) {
super(database, expressions.length, visibleColumnCount); super(database, expressions.length, visibleColumnCount);
ValueDataType valueType = new ValueDataType(database.getCompareMode(), database, new int[columnCount]); ValueDataType valueType = new ValueDataType(database, new int[columnCount]);
Builder<Long, ValueArray> builder = new MVMap.Builder<Long, ValueArray>() Builder<Long, ValueArray> builder = new MVMap.Builder<Long, ValueArray>()
.valueType(valueType).singleWriter(); .valueType(valueType).singleWriter();
map = store.openMap("tmp", builder); map = store.openMap("tmp", builder);
......
h2/src/main/org/h2/mvstore/db/MVPrimaryIndex.java
浏览文件 @ 7703ad26
...@@ -51,9 +51,8 @@ public class MVPrimaryIndex extends BaseIndex { ...@@ -51,9 +51,8 @@ public class MVPrimaryIndex extends BaseIndex {
for (int i = 0; i < columns.length; i++) { for (int i = 0; i < columns.length; i++) {
sortTypes[i] = SortOrder.ASCENDING; sortTypes[i] = SortOrder.ASCENDING;
} }
ValueDataType keyType = new ValueDataType(null, null, null); ValueDataType keyType = ValueDataType.INSTANCE;
ValueDataType valueType = new ValueDataType(db.getCompareMode(), db, ValueDataType valueType = new ValueDataType(db, sortTypes);
sortTypes);
mapName = "table." + getId(); mapName = "table." + getId();
Transaction t = mvTable.getTransactionBegin(); Transaction t = mvTable.getTransactionBegin();
dataMap = t.openMap(mapName, keyType, valueType); dataMap = t.openMap(mapName, keyType, valueType);
......
h2/src/main/org/h2/mvstore/db/MVSecondaryIndex.java
浏览文件 @ 7703ad26
...@@ -62,9 +62,8 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex { ...@@ -62,9 +62,8 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex {
sortTypes[i] = columns[i].sortType; sortTypes[i] = columns[i].sortType;
} }
sortTypes[keyColumns - 1] = SortOrder.ASCENDING; sortTypes[keyColumns - 1] = SortOrder.ASCENDING;
ValueDataType keyType = new ValueDataType( ValueDataType keyType = new ValueDataType(db, sortTypes);
db.getCompareMode(), db, sortTypes); ValueDataType valueType = ValueDataType.INSTANCE;
ValueDataType valueType = new ValueDataType(null, null, null);
Transaction t = mvTable.getTransactionBegin(); Transaction t = mvTable.getTransactionBegin();
dataMap = t.openMap(mapName, keyType, valueType); dataMap = t.openMap(mapName, keyType, valueType);
dataMap.map.setVolatile(!indexType.isPersistent()); dataMap.map.setVolatile(!indexType.isPersistent());
...@@ -128,25 +127,18 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex { ...@@ -128,25 +127,18 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex {
for (String bufferName : bufferNames) { for (String bufferName : bufferNames) {
Iterator<ValueArray> iter = openMap(bufferName).keyIterator(null); Iterator<ValueArray> iter = openMap(bufferName).keyIterator(null);
if (iter.hasNext()) { if (iter.hasNext()) {
queue.add(new Source(iter)); queue.offer(new Source(iter));
} }
} }
try { try {
while (!queue.isEmpty()) { while (!queue.isEmpty()) {
Source s = queue.remove(); Source s = queue.poll();
ValueArray rowData = s.next(); ValueArray rowData = s.next();
SearchRow row = convertToSearchRow(rowData);
if (indexType.isUnique()) { if (indexType.isUnique() && !mayHaveNullDuplicates(row)) {
Value[] array = rowData.getList(); checkUnique(dataMap, rowData, Long.MIN_VALUE);
// don't change the original value
array = array.clone();
array[keyColumns - 1] = ValueLong.MIN;
ValueArray unique = ValueArray.get(array);
SearchRow row = convertToSearchRow(rowData);
if (!mayHaveNullDuplicates(row)) {
requireUnique(row, dataMap, unique);
}
} }
dataMap.putCommitted(rowData, ValueNull.INSTANCE); dataMap.putCommitted(rowData, ValueNull.INSTANCE);
...@@ -169,9 +161,8 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex { ...@@ -169,9 +161,8 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex {
sortTypes[i] = indexColumns[i].sortType; sortTypes[i] = indexColumns[i].sortType;
} }
sortTypes[keyColumns - 1] = SortOrder.ASCENDING; sortTypes[keyColumns - 1] = SortOrder.ASCENDING;
ValueDataType keyType = new ValueDataType( ValueDataType keyType = new ValueDataType(database, sortTypes);
database.getCompareMode(), database, sortTypes); ValueDataType valueType = ValueDataType.INSTANCE;
ValueDataType valueType = new ValueDataType(null, null, null);
MVMap.Builder<ValueArray, Value> builder = MVMap.Builder<ValueArray, Value> builder =
new MVMap.Builder<ValueArray, Value>() new MVMap.Builder<ValueArray, Value>()
.singleWriter() .singleWriter()
...@@ -195,50 +186,35 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex { ...@@ -195,50 +186,35 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex {
public void add(Session session, Row row) { public void add(Session session, Row row) {
TransactionMap<Value, Value> map = getMap(session); TransactionMap<Value, Value> map = getMap(session);
ValueArray array = convertToKey(row); ValueArray array = convertToKey(row);
ValueArray unique = null; boolean checkRequired = indexType.isUnique() && !mayHaveNullDuplicates(row);
if (indexType.isUnique()) { if (checkRequired) {
// this will detect committed entries only checkUnique(map, array, Long.MIN_VALUE);
unique = convertToKey(row);
unique.getList()[keyColumns - 1] = ValueLong.MIN;
if (mayHaveNullDuplicates(row)) {
// No further unique checks required
unique = null;
} else {
requireUnique(row, map, unique);
}
} }
try { try {
map.put(array, ValueNull.INSTANCE); map.put(array, ValueNull.INSTANCE);
} catch (IllegalStateException e) { } catch (IllegalStateException e) {
throw mvTable.convertException(e); throw mvTable.convertException(e);
} }
if (unique != null) {
// This code expects that mayHaveDuplicates(row) == false if (checkRequired) {
Iterator<Value> it = map.keyIterator(unique, null, true); checkUnique(map, array, row.getKey());
while (it.hasNext()) {
ValueArray k = (ValueArray) it.next();
if (compareRows(row, convertToSearchRow(k)) != 0) {
break;
}
if (map.isSameTransaction(k)) {
continue;
}
if (map.get(k) != null) {
// committed
throw getDuplicateKeyException(k.toString());
}
throw DbException.get(ErrorCode.CONCURRENT_UPDATE_1, table.getName());
}
} }
} }
private void requireUnique(SearchRow row, TransactionMap<Value, Value> map, ValueArray unique) { private void checkUnique(TransactionMap<Value, Value> map, ValueArray row, long newKey) {
Value key = map.ceilingKey(unique); Iterator<Value> it = map.keyIterator(convertToKey(row, Boolean.FALSE), convertToKey(row, Boolean.TRUE), true);
if (key != null) { while (it.hasNext()) {
ValueArray k = (ValueArray) key; ValueArray rowData = (ValueArray)it.next();
if (compareRows(row, convertToSearchRow(k)) == 0) { Value[] array = rowData.getList();
// committed Value rowKey = array[array.length - 1];
throw getDuplicateKeyException(k.toString()); long rowId = rowKey.getLong();
if (newKey != rowId) {
if (map.get(rowData) != null) {
// committed
throw getDuplicateKeyException(rowKey.toString());
}
throw DbException.get(ErrorCode.CONCURRENT_UPDATE_1, table.getName());
} }
} }
} }
...@@ -285,58 +261,23 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex { ...@@ -285,58 +261,23 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex {
} }
private Cursor find(Session session, SearchRow first, boolean bigger, SearchRow last) { private Cursor find(Session session, SearchRow first, boolean bigger, SearchRow last) {
ValueArray min = convertToKey(first); ValueArray min = convertToKey(convertToKey(first), bigger);
if (min != null) { ValueArray max = convertToKey(convertToKey(last), Boolean.TRUE);
min.getList()[keyColumns - 1] = ValueLong.MIN; TransactionMap<Value,Value> map = getMap(session);
return new MVStoreCursor(session, map.keyIterator(min, max, false));
}
private ValueArray convertToKey(ValueArray r, Boolean minmax) {
if (r == null) {
return null;
} }
TransactionMap<Value, Value> map = getMap(session);
if (bigger && min != null) { Value[] values = r.getList().clone();
// search for the next: first skip 1, then 2, 4, 8, until ValueArray row = ValueArray.get(values);
// we have a higher key; then skip 4, 2,... if (minmax != null) {
// (binary search), until 1 values[values.length - 1] = ValueLong.get(minmax ? Long.MAX_VALUE : Long.MIN_VALUE);
int offset = 1;
while (true) {
ValueArray v = (ValueArray) map.relativeKey(min, offset);
if (v != null) {
boolean foundHigher = false;
for (int i = 0; i < keyColumns - 1; i++) {
int idx = columnIds[i];
Value b = first.getValue(idx);
if (b == null) {
break;
}
Value a = v.getList()[i];
if (database.compare(a, b) > 0) {
foundHigher = true;
break;
}
}
if (!foundHigher) {
offset += offset;
min = v;
continue;
}
}
if (offset > 1) {
offset /= 2;
continue;
}
if (map.get(v) == null) {
min = (ValueArray) map.higherKey(min);
if (min == null) {
break;
}
continue;
}
min = v;
break;
}
if (min == null) {
return new MVStoreCursor(session,
Collections.<Value>emptyIterator(), null);
}
} }
return new MVStoreCursor(session, map.keyIterator(min), last); return row;
} }
private ValueArray convertToKey(SearchRow r) { private ValueArray convertToKey(SearchRow r) {
...@@ -349,7 +290,7 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex { ...@@ -349,7 +290,7 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex {
int idx = c.getColumnId(); int idx = c.getColumnId();
Value v = r.getValue(idx); Value v = r.getValue(idx);
if (v != null) { if (v != null) {
array[i] = v.convertTo(c.getType(), -1, null, database.getMode(), c.getEnumerators()); array[i] = v.convertTo(c.getType(), -1, database.getMode(), null, c.getEnumerators());
} }
} }
array[keyColumns - 1] = ValueLong.get(r.getKey()); array[keyColumns - 1] = ValueLong.get(r.getKey());
...@@ -420,7 +361,7 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex { ...@@ -420,7 +361,7 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex {
while (true) { while (true) {
if (key == null) { if (key == null) {
return new MVStoreCursor(session, return new MVStoreCursor(session,
Collections.<Value>emptyIterator(), null); Collections.<Value>emptyIterator());
} }
if (((ValueArray) key).getList()[0] != ValueNull.INSTANCE) { if (((ValueArray) key).getList()[0] != ValueNull.INSTANCE) {
break; break;
...@@ -428,7 +369,7 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex { ...@@ -428,7 +369,7 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex {
key = first ? map.higherKey(key) : map.lowerKey(key); key = first ? map.higherKey(key) : map.lowerKey(key);
} }
MVStoreCursor cursor = new MVStoreCursor(session, MVStoreCursor cursor = new MVStoreCursor(session,
Collections.singletonList(key).iterator(), null); Collections.singletonList(key).iterator());
cursor.next(); cursor.next();
return cursor; return cursor;
} }
...@@ -499,23 +440,20 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex { ...@@ -499,23 +440,20 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex {
private final Session session; private final Session session;
private final Iterator<Value> it; private final Iterator<Value> it;
private final SearchRow last; private ValueArray current;
private Value current;
private SearchRow searchRow;
private Row row; private Row row;
MVStoreCursor(Session session, Iterator<Value> it, SearchRow last) { MVStoreCursor(Session session, Iterator<Value> it) {
this.session = session; this.session = session;
this.it = it; this.it = it;
this.last = last;
} }
@Override @Override
public Row get() { public Row get() {
if (row == null) { if (row == null) {
SearchRow r = getSearchRow(); if (current != null) {
if (r != null) { Value[] values = current.getList();
row = mvTable.getRow(session, r.getKey()); row = mvTable.getRow(session, values[values.length - 1].getLong());
} }
} }
return row; return row;
...@@ -523,24 +461,12 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex { ...@@ -523,24 +461,12 @@ public final class MVSecondaryIndex extends BaseIndex implements MVIndex {
@Override @Override
public SearchRow getSearchRow() { public SearchRow getSearchRow() {
if (searchRow == null) { return current == null ? null : convertToSearchRow(current);
if (current != null) {
searchRow = convertToSearchRow((ValueArray) current);
}
}
return searchRow;
} }
@Override @Override
public boolean next() { public boolean next() {
current = it.hasNext() ? it.next() : null; current = it.hasNext() ? (ValueArray)it.next() : null;
searchRow = null;
if (current != null) {
if (last != null && compareRows(getSearchRow(), last) > 0) {
searchRow = null;
current = null;
}
}
row = null; row = null;
return current != null; return current != null;
} }
......
h2/src/main/org/h2/mvstore/db/MVSortedTempResult.java
浏览文件 @ 7703ad26
...@@ -166,12 +166,12 @@ class MVSortedTempResult extends MVTempResult { ...@@ -166,12 +166,12 @@ class MVSortedTempResult extends MVTempResult {
indexes = null; indexes = null;
} }
this.indexes = indexes; this.indexes = indexes;
ValueDataType keyType = new ValueDataType(database.getCompareMode(), database, sortTypes); ValueDataType keyType = new ValueDataType(database, sortTypes);
Builder<ValueArray, Long> builder = new MVMap.Builder<ValueArray, Long>().keyType(keyType); Builder<ValueArray, Long> builder = new MVMap.Builder<ValueArray, Long>().keyType(keyType);
map = store.openMap("tmp", builder); map = store.openMap("tmp", builder);
if (distinct && length != visibleColumnCount || distinctIndexes != null) { if (distinct && length != visibleColumnCount || distinctIndexes != null) {
int count = distinctIndexes != null ? distinctIndexes.length : visibleColumnCount; int count = distinctIndexes != null ? distinctIndexes.length : visibleColumnCount;
ValueDataType distinctType = new ValueDataType(database.getCompareMode(), database, new int[count]); ValueDataType distinctType = new ValueDataType(database, new int[count]);
Builder<ValueArray, Boolean> indexBuilder = new MVMap.Builder<ValueArray, Boolean>().keyType(distinctType); Builder<ValueArray, Boolean> indexBuilder = new MVMap.Builder<ValueArray, Boolean>().keyType(distinctType);
index = store.openMap("idx", indexBuilder); index = store.openMap("idx", indexBuilder);
} }
......
h2/src/main/org/h2/mvstore/db/MVSpatialIndex.java
浏览文件 @ 7703ad26
...@@ -93,7 +93,7 @@ public class MVSpatialIndex extends BaseIndex implements SpatialIndex, MVIndex { ...@@ -93,7 +93,7 @@ public class MVSpatialIndex extends BaseIndex implements SpatialIndex, MVIndex {
checkIndexColumnTypes(columns); checkIndexColumnTypes(columns);
} }
String mapName = "index." + getId(); String mapName = "index." + getId();
ValueDataType vt = new ValueDataType(null, null, null); ValueDataType vt = new ValueDataType(db, null);
VersionedValue.Type valueType = new VersionedValue.Type(vt); VersionedValue.Type valueType = new VersionedValue.Type(vt);
MVRTreeMap.Builder<VersionedValue> mapBuilder = MVRTreeMap.Builder<VersionedValue> mapBuilder =
new MVRTreeMap.Builder<VersionedValue>(). new MVRTreeMap.Builder<VersionedValue>().
......
h2/src/main/org/h2/mvstore/db/MVTableEngine.java
浏览文件 @ 7703ad26
...@@ -160,9 +160,8 @@ public class MVTableEngine implements TableEngine { ...@@ -160,9 +160,8 @@ public class MVTableEngine implements TableEngine {
if (!db.getSettings().reuseSpace) { if (!db.getSettings().reuseSpace) {
store.setReuseSpace(false); store.setReuseSpace(false);
} }
this.transactionStore = new TransactionStore( this.transactionStore = new TransactionStore(store,
store, new ValueDataType(db, null), db.getLockTimeout());
new ValueDataType(db.getCompareMode(), db, null), db.getLockTimeout());
} catch (IllegalStateException e) { } catch (IllegalStateException e) {
throw convertIllegalStateException(e); throw convertIllegalStateException(e);
} }
......
h2/src/main/org/h2/mvstore/db/ValueDataType.java
浏览文件 @ 7703ad26
...@@ -13,6 +13,8 @@ import java.sql.ResultSetMetaData; ...@@ -13,6 +13,8 @@ import java.sql.ResultSetMetaData;
import java.sql.SQLException; import java.sql.SQLException;
import java.util.Arrays; import java.util.Arrays;
import org.h2.api.ErrorCode; import org.h2.api.ErrorCode;
import org.h2.engine.Database;
import org.h2.engine.Mode;
import org.h2.message.DbException; import org.h2.message.DbException;
import org.h2.mvstore.DataUtils; import org.h2.mvstore.DataUtils;
import org.h2.mvstore.WriteBuffer; import org.h2.mvstore.WriteBuffer;
...@@ -33,6 +35,7 @@ import org.h2.value.ValueBytes; ...@@ -33,6 +35,7 @@ import org.h2.value.ValueBytes;
import org.h2.value.ValueDate; import org.h2.value.ValueDate;
import org.h2.value.ValueDecimal; import org.h2.value.ValueDecimal;
import org.h2.value.ValueDouble; import org.h2.value.ValueDouble;
import org.h2.value.ValueEnum;
import org.h2.value.ValueFloat; import org.h2.value.ValueFloat;
import org.h2.value.ValueGeometry; import org.h2.value.ValueGeometry;
import org.h2.value.ValueInt; import org.h2.value.ValueInt;
...@@ -73,12 +76,20 @@ public class ValueDataType implements DataType { ...@@ -73,12 +76,20 @@ public class ValueDataType implements DataType {
final DataHandler handler; final DataHandler handler;
final CompareMode compareMode; final CompareMode compareMode;
protected final Mode mode;
final int[] sortTypes; final int[] sortTypes;
SpatialDataType spatialType; SpatialDataType spatialType;
public ValueDataType(CompareMode compareMode, DataHandler handler, public static ValueDataType INSTANCE = new ValueDataType(null, Mode.getRegular(), null, null);
public ValueDataType(Database database, int[] sortTypes) {
this(database.getCompareMode(), database.getMode(), database, sortTypes);
}
private ValueDataType(CompareMode compareMode, Mode mode, DataHandler handler,
int[] sortTypes) { int[] sortTypes) {
this.compareMode = compareMode; this.compareMode = compareMode;
this.mode = mode;
this.handler = handler; this.handler = handler;
this.sortTypes = sortTypes; this.sortTypes = sortTypes;
} }
...@@ -103,7 +114,13 @@ public class ValueDataType implements DataType { ...@@ -103,7 +114,13 @@ public class ValueDataType implements DataType {
int len = Math.min(al, bl); int len = Math.min(al, bl);
for (int i = 0; i < len; i++) { for (int i = 0; i < len; i++) {
int sortType = sortTypes == null ? SortOrder.ASCENDING : sortTypes[i]; int sortType = sortTypes == null ? SortOrder.ASCENDING : sortTypes[i];
int comp = compareValues(ax[i], bx[i], sortType); Value one = ax[i];
Value two = bx[i];
if (one == null || two == null) {
return compareValues(ax[len - 1], bx[len - 1], SortOrder.ASCENDING);
}
int comp = compareValues(one, two, sortType);
if (comp != 0) { if (comp != 0) {
return comp; return comp;
} }
...@@ -136,7 +153,12 @@ public class ValueDataType implements DataType { ...@@ -136,7 +153,12 @@ public class ValueDataType implements DataType {
if (aNull || bNull) { if (aNull || bNull) {
return SortOrder.compareNull(aNull, sortType); return SortOrder.compareNull(aNull, sortType);
} }
int comp = a.compareTypeSafe(b, compareMode);
int t2 = Value.getHigherOrder(a.getType(), b.getType());
String[] enumerators = ValueEnum.getEnumeratorsForBinaryOperation(a, b);
int comp = a.convertTo(t2, -1, mode, null, enumerators)
.compareTypeSafe(b.convertTo(t2, -1, mode, null, enumerators), compareMode);
if ((sortType & SortOrder.DESCENDING) != 0) { if ((sortType & SortOrder.DESCENDING) != 0) {
comp = -comp; comp = -comp;
} }
......
h2/src/main/org/h2/tools/Recover.java
浏览文件 @ 7703ad26
...@@ -622,12 +622,8 @@ public class Recover extends Tool implements DataHandler { ...@@ -622,12 +622,8 @@ public class Recover extends Tool implements DataHandler {
} }
String tableId = mapName.substring("table.".length()); String tableId = mapName.substring("table.".length());
if (Integer.parseInt(tableId) == 0) { if (Integer.parseInt(tableId) == 0) {
ValueDataType keyType = new ValueDataType(
null, this, null);
ValueDataType valueType = new ValueDataType(
null, this, null);
TransactionMap<Value, Value> dataMap = store.begin().openMap( TransactionMap<Value, Value> dataMap = store.begin().openMap(
mapName, keyType, valueType); mapName, ValueDataType.INSTANCE, ValueDataType.INSTANCE);
Iterator<Value> dataIt = dataMap.keyIterator(null); Iterator<Value> dataIt = dataMap.keyIterator(null);
while (dataIt.hasNext()) { while (dataIt.hasNext()) {
Value rowId = dataIt.next(); Value rowId = dataIt.next();
...@@ -660,12 +656,8 @@ public class Recover extends Tool implements DataHandler { ...@@ -660,12 +656,8 @@ public class Recover extends Tool implements DataHandler {
if (Integer.parseInt(tableId) == 0) { if (Integer.parseInt(tableId) == 0) {
continue; continue;
} }
ValueDataType keyType = new ValueDataType(
null, this, null);
ValueDataType valueType = new ValueDataType(
null, this, null);
TransactionMap<Value, Value> dataMap = store.begin().openMap( TransactionMap<Value, Value> dataMap = store.begin().openMap(
mapName, keyType, valueType); mapName, ValueDataType.INSTANCE, ValueDataType.INSTANCE);
Iterator<Value> dataIt = dataMap.keyIterator(null); Iterator<Value> dataIt = dataMap.keyIterator(null);
boolean init = false; boolean init = false;
while (dataIt.hasNext()) { while (dataIt.hasNext()) {
......
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