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org.apache.hadoop.hive.ql.QueryPlan Maven / Gradle / Ivy
/**
* 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.hadoop.hive.ql;
import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.Collections;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.Set;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.hive.ql.exec.ConditionalTask;
import org.apache.hadoop.hive.ql.exec.ExplainTask;
import org.apache.hadoop.hive.ql.exec.FetchTask;
import org.apache.hadoop.hive.ql.exec.Operator;
import org.apache.hadoop.hive.ql.exec.Task;
import org.apache.hadoop.hive.ql.exec.mr.ExecDriver;
import org.apache.hadoop.hive.ql.hooks.LineageInfo;
import org.apache.hadoop.hive.ql.hooks.ReadEntity;
import org.apache.hadoop.hive.ql.hooks.WriteEntity;
import org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer;
import org.apache.hadoop.hive.ql.parse.ColumnAccessInfo;
import org.apache.hadoop.hive.ql.parse.TableAccessInfo;
import org.apache.hadoop.hive.ql.plan.OperatorDesc;
import org.apache.hadoop.hive.ql.plan.ReducerTimeStatsPerJob;
import org.apache.hadoop.hive.ql.plan.api.AdjacencyType;
import org.apache.hadoop.hive.ql.plan.api.NodeType;
import org.apache.hadoop.hive.ql.plan.api.TaskType;
import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TJSONProtocol;
import org.apache.thrift.transport.TMemoryBuffer;
/**
* QueryPlan can be serialized to disk so that we can restart/resume the
* progress of it in the future, either within or outside of the current
* jvm.
*/
public class QueryPlan implements Serializable {
private static final long serialVersionUID = 1L;
private static final Log LOG = LogFactory.getLog(QueryPlan.class.getName());
private String queryString;
private ArrayList> rootTasks;
private FetchTask fetchTask;
private final List reducerTimeStatsPerJobList;
private HashSet inputs;
/**
* Note: outputs are not all determined at compile time.
* Some of the tasks can change the outputs at run time, because only at run
* time, we know what are the changes. These tasks should keep a reference
* to the outputs here.
*/
private HashSet outputs;
/**
* Lineage information for the query.
*/
protected LineageInfo linfo;
private TableAccessInfo tableAccessInfo;
private ColumnAccessInfo columnAccessInfo;
private HashMap idToTableNameMap;
private String queryId;
private org.apache.hadoop.hive.ql.plan.api.Query query;
private final Map> counters =
new ConcurrentHashMap>();
private final Set done = Collections.newSetFromMap(new
ConcurrentHashMap());
private final Set started = Collections.newSetFromMap(new
ConcurrentHashMap());
private QueryProperties queryProperties;
private transient Long queryStartTime;
public QueryPlan() {
this.reducerTimeStatsPerJobList = new ArrayList();
}
public QueryPlan(String queryString, BaseSemanticAnalyzer sem, Long startTime) {
this(queryString, sem, startTime, null);
}
public QueryPlan(String queryString, BaseSemanticAnalyzer sem, Long startTime, String queryId) {
this.queryString = queryString;
rootTasks = new ArrayList>();
this.reducerTimeStatsPerJobList = new ArrayList();
rootTasks.addAll(sem.getRootTasks());
fetchTask = sem.getFetchTask();
// Note that inputs and outputs can be changed when the query gets executed
inputs = sem.getInputs();
outputs = sem.getOutputs();
linfo = sem.getLineageInfo();
tableAccessInfo = sem.getTableAccessInfo();
columnAccessInfo = sem.getColumnAccessInfo();
idToTableNameMap = new HashMap(sem.getIdToTableNameMap());
this.queryId = queryId == null ? makeQueryId() : queryId;
query = new org.apache.hadoop.hive.ql.plan.api.Query();
query.setQueryId(this.queryId);
query.putToQueryAttributes("queryString", this.queryString);
queryProperties = sem.getQueryProperties();
queryStartTime = startTime;
}
public String getQueryStr() {
return queryString;
}
public String getQueryId() {
return queryId;
}
public static String makeQueryId() {
GregorianCalendar gc = new GregorianCalendar();
String userid = System.getProperty("user.name");
return userid
+ "_"
+ String.format("%1$4d%2$02d%3$02d%4$02d%5$02d%5$02d", gc
.get(Calendar.YEAR), gc.get(Calendar.MONTH) + 1, gc
.get(Calendar.DAY_OF_MONTH), gc.get(Calendar.HOUR_OF_DAY), gc
.get(Calendar.MINUTE), gc.get(Calendar.SECOND))
+ "_"
+ UUID.randomUUID().toString();
}
/**
* generate the operator graph and operator list for the given task based on
* the operators corresponding to that task.
*
* @param task
* api.Task which needs its operator graph populated
* @param topOps
* the set of top operators from which the operator graph for the
* task is hanging
*/
private void populateOperatorGraph(
org.apache.hadoop.hive.ql.plan.api.Task task,
Collection> topOps) {
task.setOperatorGraph(new org.apache.hadoop.hive.ql.plan.api.Graph());
task.getOperatorGraph().setNodeType(NodeType.OPERATOR);
Queue> opsToVisit =
new LinkedList>();
Set> opsVisited =
new HashSet>();
opsToVisit.addAll(topOps);
while (opsToVisit.peek() != null) {
Operator op = opsToVisit.remove();
opsVisited.add(op);
// populate the operator
org.apache.hadoop.hive.ql.plan.api.Operator operator =
new org.apache.hadoop.hive.ql.plan.api.Operator();
operator.setOperatorId(op.getOperatorId());
operator.setOperatorType(op.getType());
task.addToOperatorList(operator);
// done processing the operator
if (op.getChildOperators() != null) {
org.apache.hadoop.hive.ql.plan.api.Adjacency entry =
new org.apache.hadoop.hive.ql.plan.api.Adjacency();
entry.setAdjacencyType(AdjacencyType.CONJUNCTIVE);
entry.setNode(op.getOperatorId());
for (Operator childOp : op.getChildOperators()) {
entry.addToChildren(childOp.getOperatorId());
if (!opsVisited.contains(childOp)) {
opsToVisit.add(childOp);
}
}
task.getOperatorGraph().addToAdjacencyList(entry);
}
}
}
/**
* Populate api.QueryPlan from exec structures. This includes constructing the
* dependency graphs of stages and operators.
*
* @throws IOException
*/
private void populateQueryPlan() throws IOException {
query.setStageGraph(new org.apache.hadoop.hive.ql.plan.api.Graph());
query.getStageGraph().setNodeType(NodeType.STAGE);
Queue> tasksToVisit =
new LinkedList>();
Set> tasksVisited = new HashSet>();
tasksToVisit.addAll(rootTasks);
while (tasksToVisit.size() != 0) {
Task task = tasksToVisit.remove();
tasksVisited.add(task);
// populate stage
org.apache.hadoop.hive.ql.plan.api.Stage stage =
new org.apache.hadoop.hive.ql.plan.api.Stage();
stage.setStageId(task.getId());
stage.setStageType(task.getType());
query.addToStageList(stage);
if (task instanceof ExecDriver) {
// populate map task
ExecDriver mrTask = (ExecDriver) task;
org.apache.hadoop.hive.ql.plan.api.Task mapTask =
new org.apache.hadoop.hive.ql.plan.api.Task();
mapTask.setTaskId(stage.getStageId() + "_MAP");
mapTask.setTaskType(TaskType.MAP);
stage.addToTaskList(mapTask);
populateOperatorGraph(mapTask, mrTask.getWork().getMapWork().getAliasToWork()
.values());
// populate reduce task
if (mrTask.hasReduce()) {
org.apache.hadoop.hive.ql.plan.api.Task reduceTask =
new org.apache.hadoop.hive.ql.plan.api.Task();
reduceTask.setTaskId(stage.getStageId() + "_REDUCE");
reduceTask.setTaskType(TaskType.REDUCE);
stage.addToTaskList(reduceTask);
Collection> reducerTopOps =
new ArrayList>();
reducerTopOps.add(mrTask.getWork().getReduceWork().getReducer());
populateOperatorGraph(reduceTask, reducerTopOps);
}
} else {
org.apache.hadoop.hive.ql.plan.api.Task otherTask =
new org.apache.hadoop.hive.ql.plan.api.Task();
otherTask.setTaskId(stage.getStageId() + "_OTHER");
otherTask.setTaskType(TaskType.OTHER);
stage.addToTaskList(otherTask);
}
if (task instanceof ConditionalTask) {
org.apache.hadoop.hive.ql.plan.api.Adjacency listEntry =
new org.apache.hadoop.hive.ql.plan.api.Adjacency();
listEntry.setAdjacencyType(AdjacencyType.DISJUNCTIVE);
listEntry.setNode(task.getId());
ConditionalTask t = (ConditionalTask) task;
for (Task listTask : t.getListTasks()) {
if (t.getChildTasks() != null) {
org.apache.hadoop.hive.ql.plan.api.Adjacency childEntry =
new org.apache.hadoop.hive.ql.plan.api.Adjacency();
childEntry.setAdjacencyType(AdjacencyType.DISJUNCTIVE);
childEntry.setNode(listTask.getId());
// done processing the task
for (Task childTask : t.getChildTasks()) {
childEntry.addToChildren(childTask.getId());
if (!tasksVisited.contains(childTask)) {
tasksToVisit.add(childTask);
}
}
query.getStageGraph().addToAdjacencyList(childEntry);
}
listEntry.addToChildren(listTask.getId());
if (!tasksVisited.contains(listTask)) {
tasksToVisit.add(listTask);
}
}
query.getStageGraph().addToAdjacencyList(listEntry);
} else if (task.getChildTasks() != null) {
org.apache.hadoop.hive.ql.plan.api.Adjacency entry =
new org.apache.hadoop.hive.ql.plan.api.Adjacency();
entry.setAdjacencyType(AdjacencyType.CONJUNCTIVE);
entry.setNode(task.getId());
// done processing the task
for (Task childTask : task.getChildTasks()) {
entry.addToChildren(childTask.getId());
if (!tasksVisited.contains(childTask)) {
tasksToVisit.add(childTask);
}
}
query.getStageGraph().addToAdjacencyList(entry);
}
}
}
/**
* From the counters extracted via extractCounters(), update the counters in
* the query plan.
*/
private void updateCountersInQueryPlan() {
query.setStarted(started.contains(query.getQueryId()));
query.setDone(done.contains(query.getQueryId()));
if (query.getStageList() != null) {
for (org.apache.hadoop.hive.ql.plan.api.Stage stage : query
.getStageList()) {
if (stage.getStageId() == null) {
continue;
}
stage.setStarted(started.contains(stage.getStageId()));
stage.setStageCounters(counters.get(stage.getStageId()));
stage.setDone(done.contains(stage.getStageId()));
for (org.apache.hadoop.hive.ql.plan.api.Task task : stage.getTaskList()) {
task.setTaskCounters(counters.get(task.getTaskId()));
if (task.getTaskType() == TaskType.OTHER) {
task.setStarted(started.contains(stage.getStageId()));
task.setDone(done.contains(stage.getStageId()));
} else {
task.setStarted(started.contains(task.getTaskId()));
task.setDone(done.contains(task.getTaskId()));
if (task.getOperatorList() == null) {
return;
}
for (org.apache.hadoop.hive.ql.plan.api.Operator op :
task.getOperatorList()) {
// if the task has started, all operators within the task have
// started
op.setStarted(started.contains(task.getTaskId()));
// if the task is done, all operators are done as well
op.setDone(done.contains(task.getTaskId()));
}
}
}
}
}
}
/**
* Extract all the counters from tasks and operators.
*/
private void extractCounters() throws IOException {
Queue> tasksToVisit =
new LinkedList>();
Set> tasksVisited =
new HashSet>();
tasksToVisit.addAll(rootTasks);
while (tasksToVisit.peek() != null) {
Task task = tasksToVisit.remove();
tasksVisited.add(task);
// add children to tasksToVisit
if (task.getChildTasks() != null) {
for (Task childTask : task.getChildTasks()) {
if (!tasksVisited.contains(childTask)) {
tasksToVisit.add(childTask);
}
}
}
if (task.getId() == null) {
continue;
}
if (started.contains(task.getId()) && done.contains(task.getId())) {
continue;
}
// get the counters for the task
counters.put(task.getId(), task.getCounters());
// check if task is started
if (task.started()) {
started.add(task.getId());
}
if (task.done()) {
done.add(task.getId());
}
if (task instanceof ExecDriver) {
ExecDriver mrTask = (ExecDriver) task;
if (mrTask.mapStarted()) {
started.add(task.getId() + "_MAP");
}
if (mrTask.mapDone()) {
done.add(task.getId() + "_MAP");
}
if (mrTask.hasReduce()) {
if (mrTask.reduceStarted()) {
started.add(task.getId() + "_REDUCE");
}
if (mrTask.reduceDone()) {
done.add(task.getId() + "_REDUCE");
}
}
} else if (task instanceof ConditionalTask) {
ConditionalTask cTask = (ConditionalTask) task;
for (Task listTask : cTask.getListTasks()) {
if (!tasksVisited.contains(listTask)) {
tasksToVisit.add(listTask);
}
}
}
}
}
public org.apache.hadoop.hive.ql.plan.api.Query getQueryPlan()
throws IOException {
if (query.getStageGraph() == null) {
populateQueryPlan();
}
extractCounters();
updateCountersInQueryPlan();
return query;
}
public String getJSONValue(Object value) {
String v = "null";
if (value != null) {
v = value.toString();
if (v.charAt(0) != '[' && v.charAt(0) != '{') {
v = "\"" + v + "\"";
}
}
return v;
}
public String getJSONKeyValue(Object key, Object value) {
return "\"" + key + "\":" + getJSONValue(value) + ",";
}
@SuppressWarnings("unchecked")
private String getJSONList(List list) {
if (list == null) {
return "null";
}
StringBuilder sb = new StringBuilder();
sb.append("[");
for (Object entry : list) {
sb.append(getJSONValue(entry));
sb.append(",");
}
sb.deleteCharAt(sb.length() - 1);
sb.append("]");
return sb.toString();
}
@SuppressWarnings("unchecked")
public String getJSONMap(Map map) {
if (map == null) {
return "null";
}
StringBuilder sb = new StringBuilder();
sb.append("{");
for (Object entry : map.entrySet()) {
Map.Entry e = (Map.Entry) entry;
sb.append(getJSONKeyValue(e.getKey(), e.getValue()));
}
sb.deleteCharAt(sb.length() - 1);
sb.append("}");
return sb.toString();
}
private Object getJSONGraph(org.apache.hadoop.hive.ql.plan.api.Graph graph) {
if (graph == null) {
return "null";
}
StringBuilder sb = new StringBuilder();
sb.append("{");
sb.append(getJSONKeyValue("nodeType", graph.getNodeType()));
sb.append(getJSONKeyValue("roots", getJSONList(graph.getRoots())));
// adjacency list
List adjList = new ArrayList();
if (graph.getAdjacencyList() != null) {
for (org.apache.hadoop.hive.ql.plan.api.Adjacency adj : graph
.getAdjacencyList()) {
adjList.add(getJSONAdjacency(adj));
}
}
sb.append(getJSONKeyValue("adjacencyList", getJSONList(adjList)));
sb.deleteCharAt(sb.length() - 1);
sb.append("}");
return sb.toString();
}
private String getJSONAdjacency(
org.apache.hadoop.hive.ql.plan.api.Adjacency adj) {
if (adj == null) {
return "null";
}
StringBuilder sb = new StringBuilder();
sb.append("{");
sb.append(getJSONKeyValue("node", adj.getNode()));
sb.append(getJSONKeyValue("children", getJSONList(adj.getChildren())));
sb.append(getJSONKeyValue("adjacencyType", adj.getAdjacencyType()));
sb.deleteCharAt(sb.length() - 1);
sb.append("}");
return sb.toString();
}
private String getJSONOperator(org.apache.hadoop.hive.ql.plan.api.Operator op) {
StringBuilder sb = new StringBuilder();
sb.append("{");
sb.append(getJSONKeyValue("operatorId", op.getOperatorId()));
sb.append(getJSONKeyValue("operatorType", op.getOperatorType()));
sb.append(getJSONKeyValue("operatorAttributes", getJSONMap(op.getOperatorAttributes())));
sb.append(getJSONKeyValue("operatorCounters", getJSONMap(op.getOperatorCounters())));
sb.append(getJSONKeyValue("done", op.isDone()));
sb.append(getJSONKeyValue("started", op.isStarted()));
sb.deleteCharAt(sb.length() - 1);
sb.append("}");
return sb.toString();
}
private String getJSONTask(org.apache.hadoop.hive.ql.plan.api.Task task) {
StringBuilder sb = new StringBuilder();
sb.append("{");
sb.append(getJSONKeyValue("taskId", task.getTaskId()));
sb.append(getJSONKeyValue("taskType", task.getTaskType()));
sb.append(getJSONKeyValue("taskAttributes", getJSONMap(task.getTaskAttributes())));
sb.append(getJSONKeyValue("taskCounters", getJSONMap(task.getTaskCounters())));
sb.append(getJSONKeyValue("operatorGraph", getJSONGraph(task.getOperatorGraph())));
// operator list
List opList = new ArrayList();
if (task.getOperatorList() != null) {
for (org.apache.hadoop.hive.ql.plan.api.Operator op : task.getOperatorList()) {
opList.add(getJSONOperator(op));
}
}
sb.append(getJSONKeyValue("operatorList", getJSONList(opList)));
sb.append(getJSONKeyValue("done", task.isDone()));
sb.append(getJSONKeyValue("started", task.isStarted()));
sb.deleteCharAt(sb.length() - 1);
sb.append("}");
return sb.toString();
}
private String getJSONStage(org.apache.hadoop.hive.ql.plan.api.Stage stage) {
StringBuilder sb = new StringBuilder();
sb.append("{");
sb.append(getJSONKeyValue("stageId", stage.getStageId()));
sb.append(getJSONKeyValue("stageType", stage.getStageType()));
sb.append(getJSONKeyValue("stageAttributes", getJSONMap(stage.getStageAttributes())));
sb.append(getJSONKeyValue("stageCounters", getJSONMap(stage.getStageCounters())));
List taskList = new ArrayList();
if (stage.getTaskList() != null) {
for (org.apache.hadoop.hive.ql.plan.api.Task task : stage.getTaskList()) {
taskList.add(getJSONTask(task));
}
}
sb.append(getJSONKeyValue("taskList", getJSONList(taskList)));
sb.append(getJSONKeyValue("done", stage.isDone()));
sb.append(getJSONKeyValue("started", stage.isStarted()));
sb.deleteCharAt(sb.length() - 1);
sb.append("}");
return sb.toString();
}
public String getJSONQuery(org.apache.hadoop.hive.ql.plan.api.Query query) {
StringBuilder sb = new StringBuilder();
sb.append("{");
sb.append(getJSONKeyValue("queryId", query.getQueryId()));
sb.append(getJSONKeyValue("queryType", query.getQueryType()));
sb.append(getJSONKeyValue("queryAttributes", getJSONMap(query.getQueryAttributes())));
sb.append(getJSONKeyValue("queryCounters", getJSONMap(query.getQueryCounters())));
sb.append(getJSONKeyValue("stageGraph", getJSONGraph(query.getStageGraph())));
// stageList
List stageList = new ArrayList();
if (query.getStageList() != null) {
for (org.apache.hadoop.hive.ql.plan.api.Stage stage : query.getStageList()) {
stageList.add(getJSONStage(stage));
}
}
sb.append(getJSONKeyValue("stageList", getJSONList(stageList)));
sb.append(getJSONKeyValue("done", query.isDone()));
sb.append(getJSONKeyValue("started", query.isStarted()));
sb.deleteCharAt(sb.length() - 1);
sb.append("}");
return sb.toString();
}
public boolean isExplain() {
return rootTasks.size() == 1 && rootTasks.get(0) instanceof ExplainTask;
}
@Override
public String toString() {
try {
return getJSONQuery(getQueryPlan());
} catch (Exception e) {
e.printStackTrace();
return e.toString();
}
}
public String toThriftJSONString() throws IOException {
org.apache.hadoop.hive.ql.plan.api.Query q = getQueryPlan();
TMemoryBuffer tmb = new TMemoryBuffer(q.toString().length() * 5);
TJSONProtocol oprot = new TJSONProtocol(tmb);
try {
q.write(oprot);
} catch (TException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return q.toString();
}
return tmb.toString("UTF-8");
}
public String toBinaryString() throws IOException {
org.apache.hadoop.hive.ql.plan.api.Query q = getQueryPlan();
TMemoryBuffer tmb = new TMemoryBuffer(q.toString().length() * 5);
TBinaryProtocol oprot = new TBinaryProtocol(tmb);
try {
q.write(oprot);
} catch (TException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return q.toString();
}
byte[] buf = new byte[tmb.length()];
tmb.read(buf, 0, tmb.length());
return new String(buf);
// return getQueryPlan().toString();
}
public void setStarted() {
started.add(queryId);
}
public void setDone() {
done.add(queryId);
}
public Set getStarted() {
return started;
}
public Set getDone() {
return done;
}
public ArrayList> getRootTasks() {
return rootTasks;
}
public void setRootTasks(ArrayList> rootTasks) {
this.rootTasks = rootTasks;
}
public boolean isForExplain() {
return rootTasks.size() == 1 && rootTasks.get(0) instanceof ExplainTask;
}
public FetchTask getFetchTask() {
return fetchTask;
}
public void setFetchTask(FetchTask fetchTask) {
this.fetchTask = fetchTask;
}
public HashSet getInputs() {
return inputs;
}
public void setInputs(HashSet inputs) {
this.inputs = inputs;
}
public HashSet getOutputs() {
return outputs;
}
public void setOutputs(HashSet outputs) {
this.outputs = outputs;
}
public HashMap getIdToTableNameMap() {
return idToTableNameMap;
}
public void setIdToTableNameMap(HashMap idToTableNameMap) {
this.idToTableNameMap = idToTableNameMap;
}
public String getQueryString() {
return queryString;
}
public void setQueryString(String queryString) {
this.queryString = queryString;
}
public org.apache.hadoop.hive.ql.plan.api.Query getQuery() {
return query;
}
public List getReducerTimeStatsPerJobList() {
return this.reducerTimeStatsPerJobList;
}
public void setQuery(org.apache.hadoop.hive.ql.plan.api.Query query) {
this.query = query;
}
public Map> getCounters() {
return counters;
}
public void setQueryId(String queryId) {
this.queryId = queryId;
}
/**
* Gets the lineage information.
*
* @return LineageInfo associated with the query.
*/
public LineageInfo getLineageInfo() {
return linfo;
}
/**
* Sets the lineage information.
*
* @param linfo The LineageInfo structure that is set in the optimization phase.
*/
public void setLineageInfo(LineageInfo linfo) {
this.linfo = linfo;
}
/**
* Gets the table access information.
*
* @return TableAccessInfo associated with the query.
*/
public TableAccessInfo getTableAccessInfo() {
return tableAccessInfo;
}
/**
* Sets the table access information.
*
* @param tableAccessInfo The TableAccessInfo structure that is set right before the optimization phase.
*/
public void setTableAccessInfo(TableAccessInfo tableAccessInfo) {
this.tableAccessInfo = tableAccessInfo;
}
/**
* Gets the column access information.
*
* @return ColumnAccessInfo associated with the query.
*/
public ColumnAccessInfo getColumnAccessInfo() {
return columnAccessInfo;
}
/**
* Sets the column access information.
*
* @param columnAccessInfo The ColumnAccessInfo structure that is set immediately after
* the optimization phase.
*/
public void setColumnAccessInfo(ColumnAccessInfo columnAccessInfo) {
this.columnAccessInfo = columnAccessInfo;
}
public QueryProperties getQueryProperties() {
return queryProperties;
}
public Long getQueryStartTime() {
return queryStartTime;
}
public void setQueryStartTime(Long queryStartTime) {
this.queryStartTime = queryStartTime;
}
}
