forked from apache/phoenix
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
PHOENIX-2198 Support correlate variable
- Loading branch information
maryannxue
committed
Sep 9, 2015
1 parent
d18afe1
commit 2acb38a
Showing
20 changed files
with
744 additions
and
23 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
208 changes: 208 additions & 0 deletions
208
phoenix-core/src/main/java/org/apache/phoenix/execute/CorrelatePlan.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,208 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package org.apache.phoenix.execute; | ||
|
|
||
| import java.io.IOException; | ||
| import java.sql.SQLException; | ||
| import java.util.List; | ||
|
|
||
| import org.apache.hadoop.hbase.io.ImmutableBytesWritable; | ||
| import org.apache.phoenix.compile.ExplainPlan; | ||
| import org.apache.phoenix.compile.QueryPlan; | ||
| import org.apache.phoenix.exception.SQLExceptionCode; | ||
| import org.apache.phoenix.exception.SQLExceptionInfo; | ||
| import org.apache.phoenix.execute.TupleProjector.ProjectedValueTuple; | ||
| import org.apache.phoenix.iterate.DefaultParallelScanGrouper; | ||
| import org.apache.phoenix.iterate.ParallelScanGrouper; | ||
| import org.apache.phoenix.iterate.ResultIterator; | ||
| import org.apache.phoenix.parse.JoinTableNode.JoinType; | ||
| import org.apache.phoenix.schema.KeyValueSchema; | ||
| import org.apache.phoenix.schema.PColumn; | ||
| import org.apache.phoenix.schema.PTable; | ||
| import org.apache.phoenix.schema.ValueBitSet; | ||
| import org.apache.phoenix.schema.KeyValueSchema.KeyValueSchemaBuilder; | ||
| import org.apache.phoenix.schema.tuple.Tuple; | ||
| import org.apache.phoenix.util.SchemaUtil; | ||
|
|
||
| import com.google.common.collect.Lists; | ||
|
|
||
| public class CorrelatePlan extends DelegateQueryPlan { | ||
| private final QueryPlan rhs; | ||
| private final String variableId; | ||
| private final JoinType joinType; | ||
| private final boolean isSingleValueOnly; | ||
| private final RuntimeContext runtimeContext; | ||
| private final KeyValueSchema joinedSchema; | ||
| private final KeyValueSchema lhsSchema; | ||
| private final KeyValueSchema rhsSchema; | ||
| private final int rhsFieldPosition; | ||
|
|
||
| public CorrelatePlan(QueryPlan lhs, QueryPlan rhs, String variableId, | ||
| JoinType joinType, boolean isSingleValueOnly, | ||
| RuntimeContext runtimeContext, PTable joinedTable, | ||
| PTable lhsTable, PTable rhsTable, int rhsFieldPosition) { | ||
| super(lhs); | ||
| if (joinType != JoinType.Inner && joinType != JoinType.Left && joinType != JoinType.Semi && joinType != JoinType.Anti) | ||
| throw new IllegalArgumentException("Unsupported join type '" + joinType + "' by CorrelatePlan"); | ||
|
|
||
| this.rhs = rhs; | ||
| this.variableId = variableId; | ||
| this.joinType = joinType; | ||
| this.isSingleValueOnly = isSingleValueOnly; | ||
| this.runtimeContext = runtimeContext; | ||
| this.joinedSchema = buildSchema(joinedTable); | ||
| this.lhsSchema = buildSchema(lhsTable); | ||
| this.rhsSchema = buildSchema(rhsTable); | ||
| this.rhsFieldPosition = rhsFieldPosition; | ||
| } | ||
|
|
||
| private static KeyValueSchema buildSchema(PTable table) { | ||
| KeyValueSchemaBuilder builder = new KeyValueSchemaBuilder(0); | ||
| if (table != null) { | ||
| for (PColumn column : table.getColumns()) { | ||
| if (!SchemaUtil.isPKColumn(column)) { | ||
| builder.addField(column); | ||
| } | ||
| } | ||
| } | ||
| return builder.build(); | ||
| } | ||
|
|
||
| @Override | ||
| public ExplainPlan getExplainPlan() throws SQLException { | ||
| List<String> steps = Lists.newArrayList(); | ||
| steps.add("NESTED-LOOP-JOIN (" + joinType.toString().toUpperCase() + ") TABLES"); | ||
| for (String step : delegate.getExplainPlan().getPlanSteps()) { | ||
| steps.add(" " + step); | ||
| } | ||
| steps.add("AND" + (rhsSchema.getFieldCount() == 0 ? " (SKIP MERGE)" : "")); | ||
| for (String step : rhs.getExplainPlan().getPlanSteps()) { | ||
| steps.add(" " + step); | ||
| } | ||
| return new ExplainPlan(steps); | ||
| } | ||
|
|
||
| @Override | ||
| public ResultIterator iterator() throws SQLException { | ||
| return iterator(DefaultParallelScanGrouper.getInstance()); | ||
| } | ||
|
|
||
| @Override | ||
| public ResultIterator iterator(ParallelScanGrouper scanGrouper) | ||
| throws SQLException { | ||
| return new ResultIterator() { | ||
| private final ValueBitSet destBitSet = ValueBitSet.newInstance(joinedSchema); | ||
| private final ValueBitSet lhsBitSet = ValueBitSet.newInstance(lhsSchema); | ||
| private final ValueBitSet rhsBitSet = | ||
| (joinType == JoinType.Semi || joinType == JoinType.Anti) ? | ||
| ValueBitSet.EMPTY_VALUE_BITSET | ||
| : ValueBitSet.newInstance(rhsSchema); | ||
| private final ResultIterator iter = delegate.iterator(); | ||
| private ResultIterator rhsIter = null; | ||
| private Tuple current = null; | ||
| private boolean closed = false; | ||
|
|
||
| @Override | ||
| public void close() throws SQLException { | ||
| if (!closed) { | ||
| closed = true; | ||
| iter.close(); | ||
| if (rhsIter != null) { | ||
| rhsIter.close(); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public Tuple next() throws SQLException { | ||
| if (closed) | ||
| return null; | ||
|
|
||
| Tuple rhsCurrent = null; | ||
| if (rhsIter != null) { | ||
| rhsCurrent = rhsIter.next(); | ||
| if (rhsCurrent == null) { | ||
| rhsIter.close(); | ||
| rhsIter = null; | ||
| } else if (isSingleValueOnly) { | ||
| throw new SQLExceptionInfo.Builder(SQLExceptionCode.SINGLE_ROW_SUBQUERY_RETURNS_MULTIPLE_ROWS).build().buildException(); | ||
| } | ||
| } | ||
| while (rhsIter == null) { | ||
| current = iter.next(); | ||
| if (current == null) { | ||
| close(); | ||
| return null; | ||
| } | ||
| runtimeContext.setCorrelateVariableValue(variableId, current); | ||
| rhsIter = rhs.iterator(); | ||
| rhsCurrent = rhsIter.next(); | ||
| if ((rhsCurrent == null && (joinType == JoinType.Inner || joinType == JoinType.Semi)) | ||
| || (rhsCurrent != null && joinType == JoinType.Anti)) { | ||
| rhsIter.close(); | ||
| rhsIter = null; | ||
| } | ||
| } | ||
|
|
||
| Tuple joined; | ||
| try { | ||
| joined = rhsBitSet == ValueBitSet.EMPTY_VALUE_BITSET ? | ||
| current : TupleProjector.mergeProjectedValue( | ||
| convertLhs(current), joinedSchema, destBitSet, | ||
| rhsCurrent, rhsSchema, rhsBitSet, rhsFieldPosition); | ||
| } catch (IOException e) { | ||
| throw new SQLException(e); | ||
| } | ||
|
|
||
| if ((joinType == JoinType.Semi || rhsCurrent == null) && rhsIter != null) { | ||
| rhsIter.close(); | ||
| rhsIter = null; | ||
| } | ||
|
|
||
| return joined; | ||
| } | ||
|
|
||
| @Override | ||
| public void explain(List<String> planSteps) { | ||
| } | ||
|
|
||
| private ProjectedValueTuple convertLhs(Tuple lhs) throws IOException { | ||
| ProjectedValueTuple t; | ||
| if (lhs instanceof ProjectedValueTuple) { | ||
| t = (ProjectedValueTuple) lhs; | ||
| } else { | ||
| ImmutableBytesWritable ptr = getContext().getTempPtr(); | ||
| TupleProjector.decodeProjectedValue(lhs, ptr); | ||
| lhsBitSet.clear(); | ||
| lhsBitSet.or(ptr); | ||
| int bitSetLen = lhsBitSet.getEstimatedLength(); | ||
| t = new ProjectedValueTuple(lhs, lhs.getValue(0).getTimestamp(), | ||
| ptr.get(), ptr.getOffset(), ptr.getLength(), bitSetLen); | ||
|
|
||
| } | ||
| return t; | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| @Override | ||
| public Integer getLimit() { | ||
| return null; | ||
| } | ||
|
|
||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
33 changes: 33 additions & 0 deletions
33
phoenix-core/src/main/java/org/apache/phoenix/execute/RuntimeContext.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package org.apache.phoenix.execute; | ||
|
|
||
| import org.apache.phoenix.schema.TableRef; | ||
| import org.apache.phoenix.schema.tuple.Tuple; | ||
|
|
||
| public interface RuntimeContext { | ||
|
|
||
| public abstract void defineCorrelateVariable(String variableId, TableRef def); | ||
|
|
||
| public abstract TableRef getCorrelateVariableDef(String variableId); | ||
|
|
||
| public abstract void setCorrelateVariableValue(String variableId, Tuple value); | ||
|
|
||
| public abstract Tuple getCorrelateVariableValue(String variableId); | ||
|
|
||
| } |
Oops, something went wrong.