private void addColumnMutation(
String schemaName, String tableName, PColumn column, PreparedStatement colUpsert)
throws SQLException {
colUpsert.setString(1, schemaName);
colUpsert.setString(2, tableName);
colUpsert.setString(3, column.getName().getString());
colUpsert.setString(
4, column.getFamilyName() == null ? null : column.getFamilyName().getString());
colUpsert.setInt(5, column.getDataType().getSqlType());
colUpsert.setInt(
6,
column.isNullable() ? ResultSetMetaData.columnNullable : ResultSetMetaData.columnNoNulls);
if (column.getMaxLength() == null) {
colUpsert.setNull(7, Types.INTEGER);
} else {
colUpsert.setInt(7, column.getMaxLength());
}
if (column.getScale() == null) {
colUpsert.setNull(8, Types.INTEGER);
} else {
colUpsert.setInt(8, column.getScale());
}
colUpsert.setInt(9, column.getPosition() + 1);
colUpsert.setInt(10, ColumnModifier.toSystemValue(column.getColumnModifier()));
colUpsert.execute();
}
@Override
public void setValue(PColumn column, byte[] byteValue) {
deleteRow = null;
byte[] family = column.getFamilyName().getBytes();
byte[] qualifier = column.getName().getBytes();
PDataType type = column.getDataType();
// Check null, since some types have no byte representation for null
if (byteValue == null || byteValue.length == 0) {
if (!column.isNullable()) {
throw new ConstraintViolationException(
name.getString() + "." + column.getName().getString() + " may not be null");
}
removeIfPresent(setValues, family, qualifier);
unsetValues.deleteColumns(family, qualifier, ts);
} else {
Integer byteSize = column.getByteSize();
if (type.isFixedWidth()) { // TODO: handle multi-byte characters
if (byteValue.length != byteSize) {
throw new ConstraintViolationException(
name.getString()
+ "."
+ column.getName().getString()
+ " must be "
+ byteSize
+ " bytes ("
+ type.toObject(byteValue)
+ ")");
}
} else if (byteSize != null && byteValue.length > byteSize) {
throw new ConstraintViolationException(
name.getString()
+ "."
+ column.getName().getString()
+ " may not exceed "
+ byteSize
+ " bytes ("
+ type.toObject(byteValue)
+ ")");
}
removeIfPresent(unsetValues, family, qualifier);
setValues.add(family, qualifier, ts, byteValue);
}
}
public MutationState dropColumn(DropColumnStatement statement) throws SQLException {
connection.rollback();
boolean wasAutoCommit = connection.getAutoCommit();
try {
connection.setAutoCommit(false);
TableName tableNameNode = statement.getTableName();
String schemaName = tableNameNode.getSchemaName();
String tableName = tableNameNode.getTableName();
PTable table = getLatestTable(schemaName, tableName); // TODO: Do in resolver?
boolean retried = false;
while (true) {
final ColumnResolver resolver = FromCompiler.getResolver(statement, connection);
ColumnRef columnRef = null;
try {
columnRef = resolver.resolveColumn((ColumnParseNode) statement.getColumnRef());
} catch (ColumnNotFoundException e) {
if (statement.ifExists()) {
return new MutationState(0, connection);
}
throw e;
}
TableRef tableRef = columnRef.getTableRef();
PColumn columnToDrop = columnRef.getColumn();
if (SchemaUtil.isPKColumn(columnToDrop)) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.CANNOT_DROP_PK)
.setColumnName(columnToDrop.getName().getString())
.build()
.buildException();
}
int columnCount = table.getColumns().size() - 1;
String familyName = null;
List<String> binds = Lists.newArrayListWithExpectedSize(4);
StringBuilder buf =
new StringBuilder(
"DELETE FROM " + TYPE_SCHEMA + ".\"" + TYPE_TABLE + "\" WHERE " + TABLE_SCHEM_NAME);
if (schemaName == null || schemaName.length() == 0) {
buf.append(" IS NULL AND ");
} else {
buf.append(" = ? AND ");
binds.add(schemaName);
}
buf.append(TABLE_NAME_NAME + " = ? AND " + COLUMN_NAME + " = ? AND " + TABLE_CAT_NAME);
binds.add(tableName);
binds.add(columnToDrop.getName().getString());
if (columnToDrop.getFamilyName() == null) {
buf.append(" IS NULL");
} else {
buf.append(" = ?");
binds.add(familyName = columnToDrop.getFamilyName().getString());
}
PreparedStatement colDelete = connection.prepareStatement(buf.toString());
for (int i = 0; i < binds.size(); i++) {
colDelete.setString(i + 1, binds.get(i));
}
colDelete.execute();
PreparedStatement colUpdate = connection.prepareStatement(UPDATE_COLUMN_POSITION);
colUpdate.setString(1, schemaName);
colUpdate.setString(2, tableName);
for (int i = columnToDrop.getPosition() + 1; i < table.getColumns().size(); i++) {
PColumn column = table.getColumns().get(i);
colUpdate.setString(3, column.getName().getString());
colUpdate.setString(
4, column.getFamilyName() == null ? null : column.getFamilyName().getString());
colUpdate.setInt(5, i);
colUpdate.execute();
}
final long seqNum = table.getSequenceNumber() + 1;
PreparedStatement tableUpsert = connection.prepareStatement(MUTATE_TABLE);
tableUpsert.setString(1, schemaName);
tableUpsert.setString(2, tableName);
tableUpsert.setString(3, table.getType().getSerializedValue());
tableUpsert.setLong(4, seqNum);
tableUpsert.setInt(5, columnCount);
tableUpsert.execute();
final List<Mutation> tableMetaData = connection.getMutationState().toMutations();
connection.rollback();
// If we're dropping the last KV colum, we have to pass an indication along to the
// dropColumn call
// to populate a new empty KV column
byte[] emptyCF = null;
if (table.getType() != PTableType.VIEW
&& !SchemaUtil.isPKColumn(columnToDrop)
&& table.getColumnFamilies().get(0).getName().equals(columnToDrop.getFamilyName())
&& table.getColumnFamilies().get(0).getColumns().size() == 1) {
emptyCF =
SchemaUtil.getEmptyColumnFamily(
table.getColumnFamilies().subList(1, table.getColumnFamilies().size()));
}
MetaDataMutationResult result =
connection
.getQueryServices()
.dropColumn(
tableMetaData,
emptyCF != null
&& Bytes.compareTo(emptyCF, QueryConstants.EMPTY_COLUMN_BYTES) == 0
? emptyCF
: null);
try {
MutationCode code = processMutationResult(schemaName, tableName, result);
if (code == MutationCode.COLUMN_NOT_FOUND) {
connection.addTable(schemaName, result.getTable());
if (!statement.ifExists()) {
throw new ColumnNotFoundException(
schemaName, tableName, familyName, columnToDrop.getName().getString());
}
return new MutationState(0, connection);
}
connection.removeColumn(
schemaName,
tableName,
familyName,
columnToDrop.getName().getString(),
seqNum,
result.getMutationTime());
// If we have a VIEW, then only delete the metadata, and leave the table data alone
if (table.getType() != PTableType.VIEW) {
connection.setAutoCommit(true);
Long scn = connection.getSCN();
// Delete everything in the column. You'll still be able to do queries at earlier
// timestamps
long ts = (scn == null ? result.getMutationTime() : scn);
MutationPlan plan =
new PostDDLCompiler(connection)
.compile(tableRef, emptyCF, Collections.singletonList(columnToDrop), ts);
return connection.getQueryServices().updateData(plan);
}
return new MutationState(0, connection);
} catch (ConcurrentTableMutationException e) {
if (retried) {
throw e;
}
table = connection.getPMetaData().getSchema(schemaName).getTable(tableName);
retried = true;
}
}
} finally {
connection.setAutoCommit(wasAutoCommit);
}
}
public MutationState createTable(CreateTableStatement statement, byte[][] splits)
throws SQLException {
PTableType tableType = statement.getTableType();
boolean isView = tableType == PTableType.VIEW;
if (isView && !statement.getProps().isEmpty()) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.VIEW_WITH_TABLE_CONFIG)
.build()
.buildException();
}
connection.rollback();
boolean wasAutoCommit = connection.getAutoCommit();
try {
connection.setAutoCommit(false);
TableName tableNameNode = statement.getTableName();
String schemaName = tableNameNode.getSchemaName();
String tableName = tableNameNode.getTableName();
PrimaryKeyConstraint pkConstraint = statement.getPrimaryKeyConstraint();
String pkName = null;
Set<String> pkColumns = Collections.<String>emptySet();
Iterator<String> pkColumnsIterator = Iterators.emptyIterator();
if (pkConstraint != null) {
pkColumns = pkConstraint.getColumnNames();
pkColumnsIterator = pkColumns.iterator();
pkName = pkConstraint.getName();
}
List<ColumnDef> colDefs = statement.getColumnDefs();
List<PColumn> columns = Lists.newArrayListWithExpectedSize(colDefs.size());
PreparedStatement colUpsert = connection.prepareStatement(INSERT_COLUMN);
int columnOrdinal = 0;
Map<String, PName> familyNames = Maps.newLinkedHashMap();
boolean isPK = false;
for (ColumnDef colDef : colDefs) {
if (colDef.isPK()) {
if (isPK) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.PRIMARY_KEY_ALREADY_EXISTS)
.setColumnName(colDef.getColumnDefName().getColumnName().getName())
.build()
.buildException();
}
isPK = true;
}
PColumn column = newColumn(columnOrdinal++, colDef, pkConstraint);
if (SchemaUtil.isPKColumn(column)) {
// TODO: remove this constraint?
if (!pkColumns.isEmpty()
&& !column.getName().getString().equals(pkColumnsIterator.next())) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.PRIMARY_KEY_OUT_OF_ORDER)
.setSchemaName(schemaName)
.setTableName(tableName)
.setColumnName(column.getName().getString())
.build()
.buildException();
}
}
columns.add(column);
if (colDef.getDataType() == PDataType.BINARY && colDefs.size() > 1) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.BINARY_IN_ROW_KEY)
.setSchemaName(schemaName)
.setTableName(tableName)
.setColumnName(column.getName().getString())
.build()
.buildException();
}
if (column.getFamilyName() != null) {
familyNames.put(column.getFamilyName().getString(), column.getFamilyName());
}
}
if (!isPK && pkColumns.isEmpty()) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.PRIMARY_KEY_MISSING)
.setSchemaName(schemaName)
.setTableName(tableName)
.build()
.buildException();
}
List<Pair<byte[], Map<String, Object>>> familyPropList =
Lists.newArrayListWithExpectedSize(familyNames.size());
Map<String, Object> commonFamilyProps = Collections.emptyMap();
Map<String, Object> tableProps = Collections.emptyMap();
if (!statement.getProps().isEmpty()) {
if (statement.isView()) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.VIEW_WITH_PROPERTIES)
.build()
.buildException();
}
for (String familyName : statement.getProps().keySet()) {
if (!familyName.equals(QueryConstants.ALL_FAMILY_PROPERTIES_KEY)) {
if (familyNames.get(familyName) == null) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.PROPERTIES_FOR_FAMILY)
.setFamilyName(familyName)
.build()
.buildException();
}
}
}
commonFamilyProps = Maps.newHashMapWithExpectedSize(statement.getProps().size());
tableProps = Maps.newHashMapWithExpectedSize(statement.getProps().size());
Collection<Pair<String, Object>> props =
statement.getProps().get(QueryConstants.ALL_FAMILY_PROPERTIES_KEY);
// Somewhat hacky way of determining if property is for HColumnDescriptor or
// HTableDescriptor
HColumnDescriptor defaultDescriptor =
new HColumnDescriptor(QueryConstants.DEFAULT_COLUMN_FAMILY_BYTES);
for (Pair<String, Object> prop : props) {
if (defaultDescriptor.getValue(prop.getFirst()) != null) {
commonFamilyProps.put(prop.getFirst(), prop.getSecond());
} else {
tableProps.put(prop.getFirst(), prop.getSecond());
}
}
}
for (PName familyName : familyNames.values()) {
Collection<Pair<String, Object>> props = statement.getProps().get(familyName.getString());
if (props.isEmpty()) {
familyPropList.add(
new Pair<byte[], Map<String, Object>>(familyName.getBytes(), commonFamilyProps));
} else {
Map<String, Object> combinedFamilyProps =
Maps.newHashMapWithExpectedSize(props.size() + commonFamilyProps.size());
combinedFamilyProps.putAll(commonFamilyProps);
for (Pair<String, Object> prop : props) {
combinedFamilyProps.put(prop.getFirst(), prop.getSecond());
}
familyPropList.add(
new Pair<byte[], Map<String, Object>>(familyName.getBytes(), combinedFamilyProps));
}
}
// Bootstrapping for our SYSTEM.TABLE that creates itself before it exists
if (tableType == PTableType.SYSTEM) {
PTable table =
new PTableImpl(
new PNameImpl(tableName),
tableType,
MetaDataProtocol.MIN_TABLE_TIMESTAMP,
0,
QueryConstants.SYSTEM_TABLE_PK_NAME,
null,
columns);
connection.addTable(schemaName, table);
}
for (PColumn column : columns) {
addColumnMutation(schemaName, tableName, column, colUpsert);
}
Integer saltBucketNum = (Integer) tableProps.remove(PhoenixDatabaseMetaData.SALT_BUCKETS);
if (saltBucketNum != null
&& (saltBucketNum <= 0 || saltBucketNum > SaltingUtil.MAX_BUCKET_NUM)) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.INVALID_BUCKET_NUM)
.build()
.buildException();
}
PreparedStatement tableUpsert = connection.prepareStatement(CREATE_TABLE);
tableUpsert.setString(1, schemaName);
tableUpsert.setString(2, tableName);
tableUpsert.setString(3, tableType.getSerializedValue());
tableUpsert.setInt(4, 0);
tableUpsert.setInt(5, columnOrdinal);
if (saltBucketNum != null) {
tableUpsert.setInt(6, saltBucketNum);
} else {
tableUpsert.setNull(6, Types.INTEGER);
}
tableUpsert.setString(7, pkName);
tableUpsert.execute();
final List<Mutation> tableMetaData = connection.getMutationState().toMutations();
connection.rollback();
MetaDataMutationResult result =
connection
.getQueryServices()
.createTable(tableMetaData, isView, tableProps, familyPropList, splits);
MutationCode code = result.getMutationCode();
switch (code) {
case TABLE_ALREADY_EXISTS:
connection.addTable(schemaName, result.getTable());
if (!statement.ifNotExists()) {
throw new TableAlreadyExistsException(schemaName, tableName);
}
break;
case NEWER_TABLE_FOUND:
// TODO: add table if in result?
throw new NewerTableAlreadyExistsException(schemaName, tableName);
case UNALLOWED_TABLE_MUTATION:
throw new SQLExceptionInfo.Builder(SQLExceptionCode.CANNOT_MUTATE_TABLE)
.setSchemaName(schemaName)
.setTableName(tableName)
.build()
.buildException();
default:
PTable table =
new PTableImpl(
new PNameImpl(tableName),
tableType,
result.getMutationTime(),
0,
pkName,
saltBucketNum,
columns);
connection.addTable(schemaName, table);
if (tableType == PTableType.USER) {
connection.setAutoCommit(true);
// Delete everything in the column. You'll still be able to do queries at earlier
// timestamps
Long scn = connection.getSCN();
long ts = (scn == null ? result.getMutationTime() : scn);
PSchema schema =
new PSchemaImpl(
schemaName,
ImmutableMap.<String, PTable>of(table.getName().getString(), table));
TableRef tableRef = new TableRef(null, table, schema, ts);
byte[] emptyCF = SchemaUtil.getEmptyColumnFamily(table.getColumnFamilies());
MutationPlan plan =
new PostDDLCompiler(connection).compile(tableRef, emptyCF, null, ts);
return connection.getQueryServices().updateData(plan);
}
break;
}
return new MutationState(0, connection);
} finally {
connection.setAutoCommit(wasAutoCommit);
}
}
public MutationPlan compile(UpsertStatement upsert, List<Object> binds) throws SQLException {
final PhoenixConnection connection = statement.getConnection();
ConnectionQueryServices services = connection.getQueryServices();
final int maxSize =
services
.getProps()
.getInt(
QueryServices.MAX_MUTATION_SIZE_ATTRIB,
QueryServicesOptions.DEFAULT_MAX_MUTATION_SIZE);
final ColumnResolver resolver = FromCompiler.getResolver(upsert, connection);
final TableRef tableRef = resolver.getTables().get(0);
PTable table = tableRef.getTable();
if (table.getType() == PTableType.VIEW) {
throw new ReadOnlyTableException("Mutations not allowed for a view (" + tableRef + ")");
}
Scan scan = new Scan();
final StatementContext context =
new StatementContext(connection, resolver, binds, upsert.getBindCount(), scan);
// Setup array of column indexes parallel to values that are going to be set
List<ColumnName> columnNodes = upsert.getColumns();
List<PColumn> allColumns = table.getColumns();
int[] columnIndexesToBe;
int[] pkSlotIndexesToBe;
PColumn[] targetColumns;
// Allow full row upsert if no columns or only dynamic one are specified and values count match
if (columnNodes.isEmpty()
|| columnNodes.size() == upsert.getTable().getDynamicColumns().size()) {
columnIndexesToBe = new int[allColumns.size()];
pkSlotIndexesToBe = new int[columnIndexesToBe.length];
targetColumns = new PColumn[columnIndexesToBe.length];
int j = table.getBucketNum() == null ? 0 : 1; // Skip over the salting byte.
for (int i = 0; i < allColumns.size(); i++) {
columnIndexesToBe[i] = i;
targetColumns[i] = allColumns.get(i);
if (SchemaUtil.isPKColumn(allColumns.get(i))) {
pkSlotIndexesToBe[i] = j++;
}
}
} else {
columnIndexesToBe = new int[columnNodes.size()];
pkSlotIndexesToBe = new int[columnIndexesToBe.length];
targetColumns = new PColumn[columnIndexesToBe.length];
Arrays.fill(
columnIndexesToBe,
-1); // TODO: necessary? So we'll get an AIOB exception if it's not replaced
Arrays.fill(
pkSlotIndexesToBe,
-1); // TODO: necessary? So we'll get an AIOB exception if it's not replaced
BitSet pkColumnsSet = new BitSet(table.getPKColumns().size());
for (int i = 0; i < columnNodes.size(); i++) {
ColumnName colName = columnNodes.get(i);
ColumnRef ref =
resolver.resolveColumn(null, colName.getFamilyName(), colName.getColumnName());
columnIndexesToBe[i] = ref.getColumnPosition();
targetColumns[i] = ref.getColumn();
if (SchemaUtil.isPKColumn(ref.getColumn())) {
pkColumnsSet.set(pkSlotIndexesToBe[i] = ref.getPKSlotPosition());
}
}
int i = table.getBucketNum() == null ? 0 : 1;
for (; i < table.getPKColumns().size(); i++) {
PColumn pkCol = table.getPKColumns().get(i);
if (!pkColumnsSet.get(i)) {
if (!pkCol.isNullable()) {
throw new ConstraintViolationException(
table.getName().getString()
+ "."
+ pkCol.getName().getString()
+ " may not be null");
}
}
}
}
List<ParseNode> valueNodes = upsert.getValues();
QueryPlan plan = null;
RowProjector projector = null;
int nValuesToSet;
boolean runOnServer = false;
if (valueNodes == null) {
SelectStatement select = upsert.getSelect();
assert (select != null);
TableRef selectTableRef = FromCompiler.getResolver(select, connection).getTables().get(0);
boolean sameTable = tableRef.equals(selectTableRef);
// Pass scan through if same table in upsert and select so that projection is computed
// correctly
QueryCompiler compiler =
new QueryCompiler(connection, 0, sameTable ? scan : new Scan(), targetColumns);
plan = compiler.compile(select, binds);
projector = plan.getProjector();
nValuesToSet = projector.getColumnCount();
// Cannot auto commit if doing aggregation or topN or salted
// Salted causes problems because the row may end up living on a different region
runOnServer =
plan.getGroupBy() == null
&& sameTable
&& select.getOrderBy().isEmpty()
&& table.getBucketNum() == null;
} else {
nValuesToSet = valueNodes.size();
}
final QueryPlan queryPlan = plan;
// Resize down to allow a subset of columns to be specifiable
if (columnNodes.isEmpty()) {
columnIndexesToBe = Arrays.copyOf(columnIndexesToBe, nValuesToSet);
pkSlotIndexesToBe = Arrays.copyOf(pkSlotIndexesToBe, nValuesToSet);
}
if (nValuesToSet != columnIndexesToBe.length) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.UPSERT_COLUMN_NUMBERS_MISMATCH)
.setMessage(
"Numbers of columns: "
+ columnIndexesToBe.length
+ ". Number of values: "
+ nValuesToSet)
.build()
.buildException();
}
final int[] columnIndexes = columnIndexesToBe;
final int[] pkSlotIndexes = pkSlotIndexesToBe;
// TODO: break this up into multiple functions
////////////////////////////////////////////////////////////////////
// UPSERT SELECT
/////////////////////////////////////////////////////////////////////
if (valueNodes == null) {
/* We can run the upsert in a coprocessor if:
* 1) the into table matches from table
* 2) the select query isn't doing aggregation
* 3) autoCommit is on
* 4) not topN
* Otherwise, run the query to pull the data from the server
* and populate the MutationState (upto a limit).
*/
final boolean isAutoCommit = connection.getAutoCommit();
runOnServer &= isAutoCommit;
////////////////////////////////////////////////////////////////////
// UPSERT SELECT run server-side (maybe)
/////////////////////////////////////////////////////////////////////
if (runOnServer) {
// At most this array will grow bigger by the number of PK columns
int[] allColumnsIndexes = Arrays.copyOf(columnIndexes, columnIndexes.length + nValuesToSet);
int[] reverseColumnIndexes = new int[table.getColumns().size()];
List<Expression> projectedExpressions =
Lists.newArrayListWithExpectedSize(reverseColumnIndexes.length);
Arrays.fill(reverseColumnIndexes, -1);
for (int i = 0; i < nValuesToSet; i++) {
projectedExpressions.add(projector.getColumnProjector(i).getExpression());
reverseColumnIndexes[columnIndexes[i]] = i;
}
/*
* Order projected columns and projected expressions with PK columns
* leading order by slot position
*/
int offset = table.getBucketNum() == null ? 0 : 1;
for (int i = 0; i < table.getPKColumns().size() - offset; i++) {
PColumn column = table.getPKColumns().get(i + offset);
int pos = reverseColumnIndexes[column.getPosition()];
if (pos == -1) {
// Last PK column may be fixed width and nullable
// We don't want to insert a null expression b/c
// it's not valid to set a fixed width type to null.
if (column.getDataType().isFixedWidth()) {
continue;
}
// Add literal null for missing PK columns
pos = projectedExpressions.size();
Expression literalNull = LiteralExpression.newConstant(null, column.getDataType());
projectedExpressions.add(literalNull);
allColumnsIndexes[pos] = column.getPosition();
}
// Swap select expression at pos with i
Collections.swap(projectedExpressions, i, pos);
// Swap column indexes and reverse column indexes too
int tempPos = allColumnsIndexes[i];
allColumnsIndexes[i] = allColumnsIndexes[pos];
allColumnsIndexes[pos] = tempPos;
reverseColumnIndexes[tempPos] = reverseColumnIndexes[i];
reverseColumnIndexes[i] = i;
}
// If any pk slots are changing, be conservative and don't run this server side.
// If the row ends up living in a different region, we'll get an error otherwise.
for (int i = 0; i < table.getPKColumns().size(); i++) {
PColumn column = table.getPKColumns().get(i);
Expression source = projectedExpressions.get(i);
if (source == null
|| !source.equals(
new ColumnRef(tableRef, column.getPosition()).newColumnExpression())) {
// TODO: we could check the region boundaries to see if the pk will still be in it.
runOnServer = false; // bail on running server side, since PK may be changing
break;
}
}
////////////////////////////////////////////////////////////////////
// UPSERT SELECT run server-side
/////////////////////////////////////////////////////////////////////
if (runOnServer) {
// Iterate through columns being projected
List<PColumn> projectedColumns =
Lists.newArrayListWithExpectedSize(projectedExpressions.size());
for (int i = 0; i < projectedExpressions.size(); i++) {
// Must make new column if position has changed
PColumn column = allColumns.get(allColumnsIndexes[i]);
projectedColumns.add(column.getPosition() == i ? column : new PColumnImpl(column, i));
}
// Build table from projectedColumns
PTable projectedTable =
PTableImpl.makePTable(
table.getName(),
table.getType(),
table.getTimeStamp(),
table.getSequenceNumber(),
table.getPKName(),
table.getBucketNum(),
projectedColumns);
// Remove projection of empty column, since it can lead to problems when building another
// projection
// using this same scan. TODO: move projection code to a later stage, like
// QueryPlan.newScanner to
// prevent having to do this.
ScanUtil.removeEmptyColumnFamily(context.getScan(), table);
List<AliasedNode> select =
Collections.<AliasedNode>singletonList(
NODE_FACTORY.aliasedNode(
null,
NODE_FACTORY.function(
CountAggregateFunction.NORMALIZED_NAME, LiteralParseNode.STAR)));
// Ignore order by - it has no impact
final RowProjector aggProjector =
ProjectionCompiler.getRowProjector(
context, select, false, GroupBy.EMPTY_GROUP_BY, OrderBy.EMPTY_ORDER_BY, null);
/*
* Transfer over PTable representing subset of columns selected, but all PK columns.
* Move columns setting PK first in pkSlot order, adding LiteralExpression of null for any missing ones.
* Transfer over List<Expression> for projection.
* In region scan, evaluate expressions in order, collecting first n columns for PK and collection non PK in mutation Map
* Create the PRow and get the mutations, adding them to the batch
*/
scan.setAttribute(
UngroupedAggregateRegionObserver.UPSERT_SELECT_TABLE,
UngroupedAggregateRegionObserver.serialize(projectedTable));
scan.setAttribute(
UngroupedAggregateRegionObserver.UPSERT_SELECT_EXPRS,
UngroupedAggregateRegionObserver.serialize(projectedExpressions));
final QueryPlan aggPlan =
new AggregatePlan(
context,
tableRef,
projector,
null,
GroupBy.EMPTY_GROUP_BY,
false,
null,
OrderBy.EMPTY_ORDER_BY);
return new MutationPlan() {
@Override
public PhoenixConnection getConnection() {
return connection;
}
@Override
public ParameterMetaData getParameterMetaData() {
return context.getBindManager().getParameterMetaData();
}
@Override
public MutationState execute() throws SQLException {
Scanner scanner = aggPlan.getScanner();
ResultIterator iterator = scanner.iterator();
try {
Tuple row = iterator.next();
ImmutableBytesWritable ptr = context.getTempPtr();
final long mutationCount =
(Long) aggProjector.getColumnProjector(0).getValue(row, PDataType.LONG, ptr);
return new MutationState(maxSize, connection) {
@Override
public long getUpdateCount() {
return mutationCount;
}
};
} finally {
iterator.close();
}
}
@Override
public ExplainPlan getExplainPlan() throws SQLException {
List<String> queryPlanSteps = aggPlan.getExplainPlan().getPlanSteps();
List<String> planSteps =
Lists.newArrayListWithExpectedSize(queryPlanSteps.size() + 1);
planSteps.add("UPSERT ROWS");
planSteps.addAll(queryPlanSteps);
return new ExplainPlan(planSteps);
}
};
}
}
////////////////////////////////////////////////////////////////////
// UPSERT SELECT run client-side
/////////////////////////////////////////////////////////////////////
final int batchSize = Math.min(connection.getMutateBatchSize(), maxSize);
return new MutationPlan() {
@Override
public PhoenixConnection getConnection() {
return connection;
}
@Override
public ParameterMetaData getParameterMetaData() {
return context.getBindManager().getParameterMetaData();
}
@Override
public MutationState execute() throws SQLException {
byte[][] values = new byte[columnIndexes.length][];
Scanner scanner = queryPlan.getScanner();
int estSize = scanner.getEstimatedSize();
int rowCount = 0;
Map<ImmutableBytesPtr, Map<PColumn, byte[]>> mutation =
Maps.newHashMapWithExpectedSize(estSize);
ResultSet rs = new PhoenixResultSet(scanner, statement);
PTable table = tableRef.getTable();
PColumn column;
while (rs.next()) {
for (int i = 0; i < values.length; i++) {
column = table.getColumns().get(columnIndexes[i]);
byte[] byteValue = rs.getBytes(i + 1);
Object value = rs.getObject(i + 1);
int rsPrecision = rs.getMetaData().getPrecision(i + 1);
Integer precision = rsPrecision == 0 ? null : rsPrecision;
int rsScale = rs.getMetaData().getScale(i + 1);
Integer scale = rsScale == 0 ? null : rsScale;
// If ColumnModifier from expression in SELECT doesn't match the
// column being projected into then invert the bits.
if (column.getColumnModifier() == ColumnModifier.SORT_DESC) {
byte[] tempByteValue = Arrays.copyOf(byteValue, byteValue.length);
byteValue =
ColumnModifier.SORT_DESC.apply(byteValue, tempByteValue, 0, byteValue.length);
}
// We are guaranteed that the two column will have compatible types,
// as we checked that before.
if (!column
.getDataType()
.isSizeCompatible(
column.getDataType(),
value,
byteValue,
precision,
column.getMaxLength(),
scale,
column.getScale())) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.DATA_INCOMPATIBLE_WITH_TYPE)
.setColumnName(column.getName().getString())
.build()
.buildException();
}
values[i] =
column
.getDataType()
.coerceBytes(
byteValue,
value,
column.getDataType(),
precision,
scale,
column.getMaxLength(),
column.getScale());
}
setValues(values, pkSlotIndexes, columnIndexes, table, mutation);
rowCount++;
// Commit a batch if auto commit is true and we're at our batch size
if (isAutoCommit && rowCount % batchSize == 0) {
MutationState state = new MutationState(tableRef, mutation, 0, maxSize, connection);
connection.getMutationState().join(state);
connection.commit();
mutation.clear();
}
}
// If auto commit is true, this last batch will be committed upon return
return new MutationState(
tableRef, mutation, rowCount / batchSize * batchSize, maxSize, connection);
}
@Override
public ExplainPlan getExplainPlan() throws SQLException {
List<String> queryPlanSteps = queryPlan.getExplainPlan().getPlanSteps();
List<String> planSteps = Lists.newArrayListWithExpectedSize(queryPlanSteps.size() + 1);
planSteps.add("UPSERT SELECT");
planSteps.addAll(queryPlanSteps);
return new ExplainPlan(planSteps);
}
};
}
////////////////////////////////////////////////////////////////////
// UPSERT VALUES
/////////////////////////////////////////////////////////////////////
int nodeIndex = 0;
// Allocate array based on size of all columns in table,
// since some values may not be set (if they're nullable).
UpsertValuesCompiler expressionBuilder = new UpsertValuesCompiler(context);
final byte[][] values = new byte[nValuesToSet][];
for (ParseNode valueNode : valueNodes) {
if (!valueNode.isConstant()) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.VALUE_IN_UPSERT_NOT_CONSTANT)
.build()
.buildException();
}
PColumn column = allColumns.get(columnIndexes[nodeIndex]);
expressionBuilder.setColumn(column);
LiteralExpression literalExpression = (LiteralExpression) valueNode.accept(expressionBuilder);
byte[] byteValue = literalExpression.getBytes();
if (literalExpression.getDataType() != null) {
// If ColumnModifier from expression in SELECT doesn't match the
// column being projected into then invert the bits.
if (literalExpression.getColumnModifier() != column.getColumnModifier()) {
byte[] tempByteValue = Arrays.copyOf(byteValue, byteValue.length);
byteValue = ColumnModifier.SORT_DESC.apply(byteValue, tempByteValue, 0, byteValue.length);
}
if (!literalExpression
.getDataType()
.isCoercibleTo(column.getDataType(), literalExpression.getValue())) {
throw new TypeMismatchException(
literalExpression.getDataType(),
column.getDataType(),
"expression: " + literalExpression.toString() + " in column " + column);
}
if (!column
.getDataType()
.isSizeCompatible(
literalExpression.getDataType(),
literalExpression.getValue(),
byteValue,
literalExpression.getMaxLength(),
column.getMaxLength(),
literalExpression.getScale(),
column.getScale())) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.DATA_INCOMPATIBLE_WITH_TYPE)
.setColumnName(column.getName().getString())
.setMessage("value=" + literalExpression.toString())
.build()
.buildException();
}
}
byteValue =
column
.getDataType()
.coerceBytes(
byteValue,
literalExpression.getValue(),
literalExpression.getDataType(),
literalExpression.getMaxLength(),
literalExpression.getScale(),
column.getMaxLength(),
column.getScale());
values[nodeIndex] = byteValue;
nodeIndex++;
}
return new MutationPlan() {
@Override
public PhoenixConnection getConnection() {
return connection;
}
@Override
public ParameterMetaData getParameterMetaData() {
return context.getBindManager().getParameterMetaData();
}
@Override
public MutationState execute() {
Map<ImmutableBytesPtr, Map<PColumn, byte[]>> mutation = Maps.newHashMapWithExpectedSize(1);
setValues(values, pkSlotIndexes, columnIndexes, tableRef.getTable(), mutation);
return new MutationState(tableRef, mutation, 0, maxSize, connection);
}
@Override
public ExplainPlan getExplainPlan() throws SQLException {
return new ExplainPlan(Collections.singletonList("PUT SINGLE ROW"));
}
};
}
public MutationState addColumn(AddColumnStatement statement) throws SQLException {
connection.rollback();
boolean wasAutoCommit = connection.getAutoCommit();
try {
connection.setAutoCommit(false);
TableName tableNameNode = statement.getTableName();
String schemaName = tableNameNode.getSchemaName();
String tableName = tableNameNode.getTableName();
PTable table = getLatestTable(schemaName, tableName);
PSchema schema = connection.getPMetaData().getSchema(schemaName);
boolean retried = false;
while (true) {
int ordinalPosition = table.getColumns().size();
List<PColumn> currentPKs = table.getPKColumns();
PColumn lastPK = currentPKs.get(currentPKs.size() - 1);
// Disallow adding columns if the last column is VARBIANRY.
if (lastPK.getDataType() == PDataType.VARBINARY) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.VARBINARY_LAST_PK)
.setColumnName(lastPK.getName().getString())
.build()
.buildException();
}
// Disallow adding columns if last column is fixed width and nullable.
if (lastPK.isNullable() && lastPK.getDataType().isFixedWidth()) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.NULLABLE_FIXED_WIDTH_LAST_PK)
.setColumnName(lastPK.getName().getString())
.build()
.buildException();
}
List<PColumn> columns = Lists.newArrayListWithExpectedSize(1);
ColumnDef colDef = statement.getColumnDef();
if (!colDef.isNull() && colDef.isPK()) {
throw new SQLExceptionInfo.Builder(SQLExceptionCode.NOT_NULLABLE_COLUMN_IN_ROW_KEY)
.setColumnName(colDef.getColumnDefName().getColumnName().getName())
.build()
.buildException();
}
PreparedStatement colUpsert = connection.prepareStatement(INSERT_COLUMN);
Pair<byte[], Map<String, Object>> family = null;
PColumn column = newColumn(ordinalPosition++, colDef, null);
addColumnMutation(schemaName, tableName, column, colUpsert);
columns.add(column);
if (column.getFamilyName() != null) {
family =
new Pair<byte[], Map<String, Object>>(
column.getFamilyName().getBytes(), statement.getProps());
}
final long seqNum = table.getSequenceNumber() + 1;
PreparedStatement tableUpsert = connection.prepareStatement(MUTATE_TABLE);
tableUpsert.setString(1, schemaName);
tableUpsert.setString(2, tableName);
tableUpsert.setString(3, table.getType().getSerializedValue());
tableUpsert.setLong(4, seqNum);
tableUpsert.setInt(5, ordinalPosition);
tableUpsert.execute();
final List<Mutation> tableMetaData = connection.getMutationState().toMutations();
connection.rollback();
byte[] emptyCF = null;
if (table.getType() != PTableType.VIEW
&& family != null
&& table.getColumnFamilies().isEmpty()) {
emptyCF = family.getFirst();
}
MetaDataMutationResult result =
connection
.getQueryServices()
.addColumn(tableMetaData, table.getType() == PTableType.VIEW, family);
try {
MutationCode code = processMutationResult(schemaName, tableName, result);
if (code == MutationCode.COLUMN_ALREADY_EXISTS) {
connection.addTable(schemaName, result.getTable());
if (!statement.ifNotExists()) {
throw new ColumnAlreadyExistsException(
schemaName, tableName, SchemaUtil.findExistingColumn(result.getTable(), columns));
}
return new MutationState(0, connection);
}
connection.addColumn(schemaName, tableName, columns, seqNum, result.getMutationTime());
if (emptyCF != null) {
Long scn = connection.getSCN();
connection.setAutoCommit(true);
// Delete everything in the column. You'll still be able to do queries at earlier
// timestamps
long ts = (scn == null ? result.getMutationTime() : scn);
TableRef tableRef = new TableRef(null, table, schema, ts);
MutationPlan plan =
new PostDDLCompiler(connection).compile(tableRef, emptyCF, null, ts);
return connection.getQueryServices().updateData(plan);
}
return new MutationState(0, connection);
} catch (ConcurrentTableMutationException e) {
if (retried) {
throw e;
}
table = connection.getPMetaData().getSchema(schemaName).getTable(tableName);
retried = true;
}
}
} finally {
connection.setAutoCommit(wasAutoCommit);
}
}
private void init(
PName name,
PTableType type,
long timeStamp,
long sequenceNumber,
String pkName,
List<PColumn> columns,
PTableStats stats) {
this.name = name;
this.type = type;
this.timeStamp = timeStamp;
this.sequenceNumber = sequenceNumber;
this.columnsByName = ArrayListMultimap.create(columns.size(), 1);
this.pkName = pkName;
List<PColumn> pkColumns = Lists.newArrayListWithExpectedSize(columns.size() - 1);
PColumn[] allColumns = new PColumn[columns.size()];
RowKeySchemaBuilder builder = new RowKeySchemaBuilder();
for (int i = 0; i < allColumns.length; i++) {
PColumn column = columns.get(i);
allColumns[column.getPosition()] = column;
PName familyName = column.getFamilyName();
if (familyName == null) {
pkColumns.add(column);
builder.addField(column);
}
columnsByName.put(column.getName().getString(), column);
}
this.pkColumns = ImmutableList.copyOf(pkColumns);
this.rowKeySchema = builder.setMinNullable(pkColumns.size()).build();
this.allColumns = ImmutableList.copyOf(allColumns);
// Two pass so that column order in column families matches overall column order
// and to ensure that column family order is constant
int maxExpectedSize = allColumns.length - pkColumns.size();
// Maintain iteration order so that column families are ordered as they are listed
Map<PName, List<PColumn>> familyMap = Maps.newLinkedHashMap();
for (PColumn column : allColumns) {
PName familyName = column.getFamilyName();
if (familyName != null) {
List<PColumn> columnsInFamily = familyMap.get(familyName);
if (columnsInFamily == null) {
columnsInFamily = Lists.newArrayListWithExpectedSize(maxExpectedSize);
familyMap.put(familyName, columnsInFamily);
}
columnsInFamily.add(column);
}
}
Iterator<Map.Entry<PName, List<PColumn>>> iterator = familyMap.entrySet().iterator();
PColumnFamily[] families = new PColumnFamily[familyMap.size()];
ImmutableMap.Builder<String, PColumnFamily> familyByString = ImmutableMap.builder();
ImmutableSortedMap.Builder<byte[], PColumnFamily> familyByBytes =
ImmutableSortedMap.orderedBy(Bytes.BYTES_COMPARATOR);
for (int i = 0; i < families.length; i++) {
Map.Entry<PName, List<PColumn>> entry = iterator.next();
PColumnFamily family = new PColumnFamilyImpl(entry.getKey(), entry.getValue());
families[i] = family;
familyByString.put(family.getName().getString(), family);
familyByBytes.put(family.getName().getBytes(), family);
}
this.families = ImmutableList.copyOf(families);
this.familyByBytes = familyByBytes.build();
this.familyByString = familyByString.build();
this.stats = stats;
}
@Override
public int newKey(ImmutableBytesWritable key, byte[][] values) {
int i = 0;
TrustedByteArrayOutputStream os =
new TrustedByteArrayOutputStream(SchemaUtil.estimateKeyLength(this));
try {
List<PColumn> columns = getPKColumns();
int nColumns = columns.size();
PColumn lastPKColumn = columns.get(nColumns - 1);
while (i < values.length && i < nColumns) {
PColumn column = columns.get(i);
PDataType type = column.getDataType();
// This will throw if the value is null and the type doesn't allow null
byte[] byteValue = values[i++];
if (byteValue == null) {
byteValue = ByteUtil.EMPTY_BYTE_ARRAY;
}
// An empty byte array return value means null. Do this,
// since a type may have muliple representations of null.
// For example, VARCHAR treats both null and an empty string
// as null. This way we don't need to leak that part of the
// implementation outside of PDataType by checking the value
// here.
if (byteValue.length == 0 && !column.isNullable()) {
throw new ConstraintViolationException(
name.getString() + "." + column.getName().getString() + " may not be null");
}
Integer byteSize = column.getByteSize();
if (type.isFixedWidth()) { // TODO: handle multi-byte characters
if (byteValue.length != byteSize) {
throw new ConstraintViolationException(
name.getString()
+ "."
+ column.getName().getString()
+ " must be "
+ byteSize
+ " bytes ("
+ SchemaUtil.toString(type, byteValue)
+ ")");
}
} else if (byteSize != null && byteValue.length > byteSize) {
throw new ConstraintViolationException(
name.getString()
+ "."
+ column.getName().getString()
+ " may not exceed "
+ byteSize
+ " bytes ("
+ SchemaUtil.toString(type, byteValue)
+ ")");
}
os.write(byteValue, 0, byteValue.length);
// Separate variable length column values in key with zero byte
if (!type.isFixedWidth() && column != lastPKColumn) {
os.write(SEPARATOR_BYTE);
}
}
// If some non null pk values aren't set, then throw
if (i < nColumns) {
PColumn column = columns.get(i);
PDataType type = column.getDataType();
if (type.isFixedWidth() || !column.isNullable()) {
throw new ConstraintViolationException(
name.getString() + "." + column.getName().getString() + " may not be null");
}
// Separate variable length column values in key with zero byte
if (column != lastPKColumn) {
os.write(SEPARATOR_BYTE);
}
}
key.set(os.getBuffer(), 0, os.size());
return i;
} finally {
try {
os.close();
} catch (IOException e) {
throw new RuntimeException(e); // Impossible
}
}
}