/*
* DBeaver - Universal Database Manager
* Copyright (C) 2010-2017 Serge Rider (serge@jkiss.org)
*
* Licensed 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.jkiss.dbeaver.ext.postgresql.model.plan;
import org.jkiss.code.NotNull;
import org.jkiss.dbeaver.ext.generic.model.GenericDataSource;
import org.jkiss.dbeaver.model.DBPDataSource;
import org.jkiss.dbeaver.model.exec.DBCException;
import org.jkiss.dbeaver.model.exec.DBCSession;
import org.jkiss.dbeaver.model.exec.plan.DBCPlan;
import org.jkiss.dbeaver.model.exec.plan.DBCPlanStyle;
import org.jkiss.dbeaver.model.exec.plan.DBCQueryPlanner;
/**
* PostgreQueryPlaner
*/
public class PostgreQueryPlaner implements DBCQueryPlanner
{
private final GenericDataSource dataSource;
public PostgreQueryPlaner(GenericDataSource dataSource) {
this.dataSource = dataSource;
}
@Override
public DBPDataSource getDataSource() {
return dataSource;
}
@NotNull
@Override
public DBCPlan planQueryExecution(@NotNull DBCSession session, @NotNull String query) throws DBCException {
PostgrePlanAnalyser plan = new PostgrePlanAnalyser(getPlanStyle() == DBCPlanStyle.QUERY, query);
plan.explain(session);
return plan;
}
@NotNull
@Override
public DBCPlanStyle getPlanStyle() {
return dataSource.isServerVersionAtLeast(9, 0) ? DBCPlanStyle.PLAN : DBCPlanStyle.QUERY;
}
}