/
TestAggregatePushdown.java
1335 lines (1198 loc) · 72.1 KB
/
TestAggregatePushdown.java
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/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.query.optimizer;
import static org.teiid.query.optimizer.TestOptimizer.*;
import org.junit.Test;
import org.teiid.query.function.FunctionTree;
import org.teiid.query.metadata.QueryMetadataInterface;
import org.teiid.query.optimizer.TestOptimizer.ComparisonMode;
import org.teiid.query.optimizer.capabilities.BasicSourceCapabilities;
import org.teiid.query.optimizer.capabilities.CapabilitiesFinder;
import org.teiid.query.optimizer.capabilities.DefaultCapabilitiesFinder;
import org.teiid.query.optimizer.capabilities.FakeCapabilitiesFinder;
import org.teiid.query.optimizer.capabilities.SourceCapabilities.Capability;
import org.teiid.query.processor.ProcessorPlan;
import org.teiid.query.unittest.RealMetadataFactory;
import org.teiid.translator.SourceSystemFunctions;
@SuppressWarnings("nls")
public class TestAggregatePushdown {
public static BasicSourceCapabilities getAggregateCapabilities() {
BasicSourceCapabilities caps = TestOptimizer.getTypicalCapabilities();
caps.setCapabilitySupport(Capability.QUERY_FROM_INLINE_VIEWS, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_MAX, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_SUM, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_MIN, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_AVG, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_COUNT, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_COUNT_STAR, true);
caps.setCapabilitySupport(Capability.QUERY_GROUP_BY, true);
caps.setCapabilitySupport(Capability.QUERY_HAVING, true);
caps.setCapabilitySupport(Capability.ROW_LIMIT, true);
return caps;
}
public static CapabilitiesFinder getAggregatesFinder() {
return new DefaultCapabilitiesFinder(getAggregateCapabilities());
}
@Test public void testCase6327() {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_FROM_JOIN_SELFJOIN, true);
caps.setCapabilitySupport(Capability.QUERY_FROM_GROUP_ALIAS, true);
caps.setFunctionSupport("convert", true); //$NON-NLS-1$
capFinder.addCapabilities("BQT1", caps); //$NON-NLS-1$
capFinder.addCapabilities("BQT2", caps); //$NON-NLS-1$
String sql = "SELECT a12.intkey AS REGION_NBR, SUM(a11.intnum) AS WJXBFS1 FROM bqt1.smalla AS a11 INNER JOIN bqt2.smalla AS a12 ON a11.stringkey = a12.stringkey WHERE a11.stringkey = 0 GROUP BY a12.intkey"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.exampleBQTCached(), null, capFinder,
new String[] {"SELECT SUM(g_0.IntNum) FROM BQT1.SmallA AS g_0 WHERE g_0.StringKey = '0'", "SELECT g_0.IntKey FROM BQT2.SmallA AS g_0 WHERE g_0.StringKey = '0'"}, TestOptimizer.SHOULD_SUCCEED); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
1, // NestedLoopJoinStrategy
0, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
/**
* Note that intnum is retrieved from each source
*
* Note also that this test shows that the max aggregate is not placed on the bqt2 query since it would be on one of the group by expressions
*/
@Test public void testAggregateOfJoinExpression() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_FROM_GROUP_ALIAS, true);
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
caps.setFunctionSupport("convert", true); //$NON-NLS-1$
capFinder.addCapabilities("BQT1", caps); //$NON-NLS-1$
capFinder.addCapabilities("BQT2", caps); //$NON-NLS-1$
String sql = "SELECT a12.intkey, MAX(a12.stringkey), MIN(a11.intnum+a12.intnum) FROM bqt1.smalla AS a11 INNER JOIN bqt2.smalla AS a12 ON a11.stringkey = a12.stringkey GROUP BY a12.intkey"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.exampleBQTCached(), null, capFinder,
new String[] {"SELECT g_0.StringKey, g_0.IntKey, g_0.IntNum FROM BQT2.SmallA AS g_0 GROUP BY g_0.StringKey, g_0.IntKey, g_0.IntNum", "SELECT g_0.StringKey, g_0.IntNum FROM BQT1.SmallA AS g_0"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testAggregateOfJoinExpression1() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_FROM_GROUP_ALIAS, true);
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
caps.setFunctionSupport("convert", true); //$NON-NLS-1$
capFinder.addCapabilities("BQT1", caps); //$NON-NLS-1$
capFinder.addCapabilities("BQT2", caps); //$NON-NLS-1$
String sql = "SELECT a12.intkey, MAX(a12.stringkey), SUM(a11.intnum+a12.intnum) FROM bqt1.smalla AS a11 INNER JOIN bqt2.smalla AS a12 ON a11.stringkey = a12.stringkey GROUP BY a12.intkey"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.exampleBQTCached(), null, capFinder,
new String[] {"SELECT g_0.StringKey, g_0.IntKey, g_0.IntNum FROM BQT2.SmallA AS g_0", "SELECT g_0.StringKey, g_0.IntNum FROM BQT1.SmallA AS g_0"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
/**
* Note that even though this grouping is join invariant, we still do not remove the top level group by
* since we are not checking the uniqueness of the x side join expressions
*/
@Test public void testInvariantAggregate() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
capFinder.addCapabilities("pm2", caps); //$NON-NLS-1$
String sql = "SELECT max(y.e2) from pm1.g1 x, pm2.g1 y where x.e3 = y.e3 group by y.e3"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.example1Cached(), null, capFinder,
new String[] {"SELECT g_0.e3 FROM pm1.g1 AS g_0", "SELECT g_0.e3, MAX(g_0.e2) FROM pm2.g1 AS g_0 GROUP BY g_0.e3"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
/**
* Test of an aggregate nested in an expression symbol
*/
@Test public void testCase6211() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
caps.setFunctionSupport("convert", true); //$NON-NLS-1$
capFinder.addCapabilities("BQT1", caps); //$NON-NLS-1$
capFinder.addCapabilities("BQT2", caps); //$NON-NLS-1$
String sql = "select sum(a11.intnum) Profit, (sum(a11.intnum) / sum(a11.floatnum)) WJXBFS2 from bqt1.smalla a11 join bqt2.smallb a12 on a11.intkey=a12.intkey group by a12.intkey"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.exampleBQTCached(), null, capFinder,
new String[] {"SELECT g_0.IntKey FROM BQT2.SmallB AS g_0", "SELECT g_0.IntKey, SUM(g_0.IntNum), SUM(g_0.FloatNum) FROM BQT1.SmallA AS g_0 GROUP BY g_0.IntKey"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
/**
* Note that until we can test the other side cardinality, we cannot fully push the group node
*/
@Test public void testAggregatePushdown1() throws Exception {
QueryMetadataInterface metadata = RealMetadataFactory.exampleAggregatesCached();
String sql = "SELECT o_dealerid, o_productid, sum(o_amount) FROM m1.order, m1.dealer, m2.product " + //$NON-NLS-1$
"WHERE o_dealerid=d_dealerid AND o_productid=p_productid AND d_state = 'CA' AND p_divid = 100 " + //$NON-NLS-1$
"GROUP BY o_dealerid, o_productid"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql,
metadata,
null, getAggregatesFinder(),
new String[] {"SELECT g_0.O_ProductID, g_0.O_DealerID, SUM(g_0.O_Amount) FROM m1.\"order\" AS g_0, m1.dealer AS g_1 WHERE (g_0.O_DealerID = g_1.D_DealerID) AND (g_1.D_State = 'CA') AND (g_0.O_ProductID IN (<dependent values>)) GROUP BY g_0.O_ProductID, g_0.O_DealerID", "SELECT g_0.P_ProductID AS c_0 FROM m2.product AS g_0 WHERE g_0.P_DivID = 100 ORDER BY c_0"}, //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING );
TestOptimizer.checkNodeTypes(plan, new int[] {
1, // Access
1, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testAggregatePushdown2() throws Exception {
QueryMetadataInterface metadata = RealMetadataFactory.exampleAggregatesCached();
String sql = "SELECT o_dealerid, o_productid, sum(o_amount) FROM m1.order, m1.dealer, m2.product " + //$NON-NLS-1$
"WHERE o_dealerid=d_dealerid AND o_productid=p_productid AND d_state = 'CA' AND p_divid = 100 " + //$NON-NLS-1$
"GROUP BY o_dealerid, o_productid having max(o_amount) < 100"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql,
metadata,
null, getAggregatesFinder(),
new String[] {"SELECT g_0.P_ProductID AS c_0 FROM m2.product AS g_0 WHERE g_0.P_DivID = 100 ORDER BY c_0", "SELECT g_0.O_ProductID, g_0.O_DealerID, MAX(g_0.O_Amount), SUM(g_0.O_Amount) FROM m1.\"order\" AS g_0, m1.dealer AS g_1 WHERE (g_0.O_DealerID = g_1.D_DealerID) AND (g_1.D_State = 'CA') AND (g_0.O_ProductID IN (<dependent values>)) GROUP BY g_0.O_ProductID, g_0.O_DealerID"}, //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING );
TestOptimizer.checkNodeTypes(plan, new int[] {
1, // Access
1, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
1, // Select
0, // Sort
0 // UnionAll
});
}
/**
* Average requires the creation of staged sum and count aggregates
*/
@Test public void testAvgAggregate() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
capFinder.addCapabilities("pm2", caps); //$NON-NLS-1$
String sql = "SELECT avg(y.e2) from pm1.g1 x, pm2.g1 y where x.e3 = y.e3 group by x.e2, y.e1"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.example1Cached(), null, capFinder,
new String[] {"SELECT g_0.e3, g_0.e2 FROM pm1.g1 AS g_0", "SELECT g_0.e3, g_0.e1, SUM(g_0.e2), COUNT(g_0.e2) FROM pm2.g1 AS g_0 GROUP BY g_0.e3, g_0.e1"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testAvgAggregateFiltered() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
capFinder.addCapabilities("pm2", caps); //$NON-NLS-1$
String sql = "SELECT avg(y.e2) filter (where y.e1 = 1) from pm1.g1 x, pm2.g1 y where x.e3 = y.e3 group by x.e2, y.e1"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.example1Cached(), null, capFinder,
new String[] {"SELECT g_0.e3, g_0.e2 FROM pm1.g1 AS g_0",
"SELECT g_0.e3, g_0.e1, g_0.e2 FROM pm2.g1 AS g_0"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
2, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
/**
* Agg can only be computed after the join
*/
@Test public void testAvgAggregateFiltered1() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.ADVANCED_OLAP, true);
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
capFinder.addCapabilities("pm2", caps); //$NON-NLS-1$
String sql = "SELECT avg(y.e2) filter (where x.e1 = 1) from pm1.g1 x, pm2.g1 y where x.e3 = y.e3 group by x.e2, y.e1"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.example1Cached(), null, capFinder,
new String[] {"SELECT g_0.e3, g_0.e2, g_0.e1 FROM pm1.g1 AS g_0",
"SELECT g_0.e3, g_0.e1, g_0.e2 FROM pm2.g1 AS g_0"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testStddevAggregate() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setFunctionSupport(SourceSystemFunctions.POWER, true);
caps.setFunctionSupport(SourceSystemFunctions.CONVERT, true);
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
capFinder.addCapabilities("pm2", caps); //$NON-NLS-1$
String sql = "SELECT stddev_pop(y.e2) from pm1.g1 x, pm2.g1 y where x.e3 = y.e3 group by x.e2, y.e1"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.example1Cached(), null, capFinder,
new String[] {"SELECT g_0.e3 AS c_0, g_0.e1 AS c_1, COUNT(g_0.e2) AS c_2, SUM(power(g_0.e2, 2)) AS c_3, SUM(g_0.e2) AS c_4 FROM pm2.g1 AS g_0 GROUP BY g_0.e3, g_0.e1 ORDER BY c_0", "SELECT g_0.e3 AS c_0, g_0.e2 AS c_1 FROM pm1.g1 AS g_0 ORDER BY c_0"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testCountAggregate() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
capFinder.addCapabilities("pm2", caps); //$NON-NLS-1$
String sql = "SELECT count(y.e2) from pm1.g1 x, pm2.g1 y where x.e3 = y.e3 group by x.e2, y.e1"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.example1Cached(), null, capFinder,
new String[] {"SELECT g_0.e3, g_0.e2 FROM pm1.g1 AS g_0", "SELECT g_0.e3, g_0.e1, COUNT(g_0.e2) FROM pm2.g1 AS g_0 GROUP BY g_0.e3, g_0.e1"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testOuterJoinPreventsPushdown() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
capFinder.addCapabilities("pm2", caps); //$NON-NLS-1$
String sql = "SELECT count(y.e2) from pm1.g1 x left outer join pm2.g1 y on x.e3 = y.e3 group by x.e2, y.e1"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.example1Cached(), null, capFinder,
new String[] {"SELECT g_0.e3, g_0.e2 FROM pm1.g1 AS g_0", "SELECT g_0.e3, g_0.e1, g_0.e2 FROM pm2.g1 AS g_0"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
/**
* Test to ensure count(*) isn't mistakenly pushed to either side
*/
@Test public void testCase5724() {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
capFinder.addCapabilities("BQT1", caps); //$NON-NLS-1$
capFinder.addCapabilities("BQT2", caps); //$NON-NLS-1$
QueryMetadataInterface metadata = RealMetadataFactory.exampleBQTCached();
ProcessorPlan plan = TestOptimizer.helpPlan(
"select count(*), a.intnum from bqt1.smalla as a, bqt2.smallb as b where a.intkey = b.intkey group by a.intnum", //$NON-NLS-1$
metadata, null, capFinder,
new String[] {
"SELECT a.intkey, a.intnum FROM bqt1.smalla AS a", "SELECT b.intkey FROM bqt2.smallb AS b"}, //$NON-NLS-1$ //$NON-NLS-2$
true);
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testCase6210() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.QUERY_FROM_JOIN_SELFJOIN, true);
caps.setCapabilitySupport(Capability.QUERY_FROM_GROUP_ALIAS, true);
caps.setCapabilitySupport(Capability.QUERY_ORDERBY, false);
caps.setFunctionSupport("convert", true); //$NON-NLS-1$
caps.setFunctionSupport("/", true); //$NON-NLS-1$
capFinder.addCapabilities("BQT1", caps); //$NON-NLS-1$
capFinder.addCapabilities("BQT2", caps); //$NON-NLS-1$
String sql = "select a11.intkey ITEM_ID, sum(a11.intnum) WJXBFS1 from bqt1.smalla a11 join bqt2.smalla a12 on (a11.stringkey = a12.stringkey) join bqt2.smallb a13 on (a11.intkey = a13.intkey) where a13.intnum in (10) group by a11.intkey"; //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan(sql, RealMetadataFactory.exampleBQTCached(), null, capFinder,
new String[] {"SELECT g_0.IntKey FROM BQT2.SmallB AS g_0 WHERE g_0.IntNum = 10", "SELECT g_0.StringKey FROM BQT2.SmallA AS g_0", "SELECT g_0.StringKey, g_0.IntKey, SUM(g_0.IntNum) FROM BQT1.SmallA AS g_0 GROUP BY g_0.StringKey, g_0.IntKey"}, TestOptimizer.ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
TestOptimizer.checkNodeTypes(plan, new int[] {
3, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
2, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testNoGroupAggregatePushdown() {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = TestOptimizer.getTypicalCapabilities();
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES, true);
caps.setCapabilitySupport(Capability.QUERY_GROUP_BY, false);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_COUNT, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_COUNT_STAR, true);
capFinder.addCapabilities("BQT1", caps); //$NON-NLS-1$
QueryMetadataInterface metadata = RealMetadataFactory.exampleBQTCached();
ProcessorPlan plan = TestOptimizer.helpPlan(
"select count(*) from bqt1.smalla", //$NON-NLS-1$
metadata, null, capFinder,
new String[] {
"SELECT count(*) from bqt1.smalla"}, //$NON-NLS-1$
true);
TestOptimizer.checkNodeTypes(plan, TestOptimizer.FULL_PUSHDOWN);
}
@Test public void testNoHavingAggregate() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = TestOptimizer.getTypicalCapabilities();
caps.setCapabilitySupport(Capability.QUERY_GROUP_BY, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_COUNT, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_MAX, true);
capFinder.addCapabilities("BQT1", caps); //$NON-NLS-1$
QueryMetadataInterface metadata = RealMetadataFactory.exampleBQTCached();
ProcessorPlan plan = TestOptimizer.helpPlan(
"select stringkey, max(intkey) from bqt1.smalla group by stringkey having count(intkey) = 1", //$NON-NLS-1$
metadata, null, capFinder,
new String[] {
"SELECT COUNT(g_0.IntKey), g_0.StringKey, MAX(g_0.IntKey) FROM BQT1.SmallA AS g_0 GROUP BY g_0.StringKey"}, //$NON-NLS-1$
ComparisonMode.EXACT_COMMAND_STRING);
TestOptimizer.checkNodeTypes(plan, new int[] {
1, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
0, // Grouping
0, // NestedLoopJoinStrategy
0, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
1, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testHavingCriteriaPushDown() {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = TestOptimizer.getTypicalCapabilities();
caps.setCapabilitySupport(Capability.QUERY_GROUP_BY, false);
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan("select X.e1 FROM vm1.g1 X group by X.e1 having X.e1 = 1 and sum(X.e2) = 2", RealMetadataFactory.example1Cached(), null, capFinder, //$NON-NLS-1$
new String[]{"SELECT pm1.g1.e1, pm1.g1.e2 FROM pm1.g1 WHERE pm1.g1.e1 = '1'"}, true); //$NON-NLS-1$
TestOptimizer.checkNodeTypes(plan, new int[] {
1, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
0, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
1, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testCountXMLAgg() {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
capFinder.addCapabilities("pm2", caps); //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan("select count(X.e1), xmlagg(xmlelement(name e1, x.e1) order by x.e2) FROM pm1.g1 as X, pm2.g2 as Y group by X.e2", RealMetadataFactory.example1Cached(), null, capFinder, //$NON-NLS-1$
new String[]{"SELECT 1 FROM pm2.g2 AS g_0", "SELECT g_0.e2, g_0.e1 FROM pm1.g1 AS g_0"}, true); //$NON-NLS-1$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
1, // NestedLoopJoinStrategy
0, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testBusObjQuestion1() {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getTypicalCapabilities();
caps.setCapabilitySupport(Capability.CRITERIA_IN_SUBQUERY, true);
caps.setCapabilitySupport(Capability.QUERY_SUBQUERIES_SCALAR, true);
caps.setCapabilitySupport(Capability.QUERY_SUBQUERIES_CORRELATED, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_SUM, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_AVG, true);
capFinder.addCapabilities("db2model", caps); //$NON-NLS-1$
capFinder.addCapabilities("oraclemodel", caps); //$NON-NLS-1$
capFinder.addCapabilities("msmodel", caps); //$NON-NLS-1$
QueryMetadataInterface metadata = RealMetadataFactory.exampleBusObj();
String sql = "SELECT Q1.S, Q2.C, Q1.PRODUCT, Q1.REGION AS Q1R, Q2.REGION AS Q2R FROM " + //$NON-NLS-1$
"(SELECT SUM(SALES) AS S, REGION, PRODUCT FROM DB2_TABLE WHERE PRODUCT IN ('GUNS', 'TOYS', 'VIDEOTAPES') GROUP BY REGION, PRODUCT) Q1 " + //$NON-NLS-1$
"FULL OUTER JOIN " + //$NON-NLS-1$
"(SELECT SUM(COSTS) AS C, REGION FROM ORACLE_TABLE WHERE \"YEAR\" = '1999' GROUP BY REGION) Q2 " + //$NON-NLS-1$
"ON Q1.REGION = Q2.REGION"; //$NON-NLS-1$
ProcessorPlan plan = helpPlan(sql,
metadata,
null, capFinder,
new String[] {"SELECT REGION, SUM(SALES), PRODUCT FROM db2model.DB2_TABLE WHERE PRODUCT IN ('GUNS', 'TOYS', 'VIDEOTAPES') GROUP BY REGION, PRODUCT", //$NON-NLS-1$
"SELECT REGION, SUM(COSTS) FROM oraclemodel.Oracle_table WHERE \"YEAR\" = '1999' GROUP BY REGION"}, //$NON-NLS-1$
SHOULD_SUCCEED );
checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
0, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testBusObjQuestion2() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getTypicalCapabilities();
caps.setCapabilitySupport(Capability.CRITERIA_IN_SUBQUERY, true);
caps.setCapabilitySupport(Capability.QUERY_SUBQUERIES_SCALAR, true);
caps.setCapabilitySupport(Capability.QUERY_SUBQUERIES_CORRELATED, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_SUM, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_AVG, true);
capFinder.addCapabilities("db2model", caps); //$NON-NLS-1$
capFinder.addCapabilities("oraclemodel", caps); //$NON-NLS-1$
capFinder.addCapabilities("msmodel", caps); //$NON-NLS-1$
QueryMetadataInterface metadata = RealMetadataFactory.exampleBusObj();
String sql = "SELECT SUM(F.SALES), G.REGION, T.YEAR " + //$NON-NLS-1$
"FROM SALES F, GEOGRAPHY G, msModel.TIME T " + //$NON-NLS-1$
"WHERE (F.CITY = G.CITY) AND (F.MONTH = T.MONTH) " + //$NON-NLS-1$
"AND G.REGION IN ('BORDEAUX', 'POLINESIA') AND T.YEAR = '1999' " + //$NON-NLS-1$
"GROUP BY G.REGION, T.YEAR"; //$NON-NLS-1$
ProcessorPlan plan = helpPlan(sql,
metadata,
null, capFinder,
new String[] {"SELECT g_0.\"MONTH\" AS c_0, g_0.\"YEAR\" AS c_1 FROM msmodel.\"TIME\" AS g_0 WHERE g_0.\"YEAR\" = '1999' ORDER BY c_0",
"SELECT g_0.\"MONTH\", g_0.CITY, SUM(g_0.SALES) FROM db2model.SALES AS g_0 WHERE (g_0.\"MONTH\" IN (<dependent values>)) AND (g_0.CITY IN (<dependent values>)) GROUP BY g_0.\"MONTH\", g_0.CITY",
"SELECT g_0.CITY AS c_0, g_0.REGION AS c_1 FROM oraclemodel.GEOGRAPHY AS g_0 WHERE g_0.REGION IN ('BORDEAUX', 'POLINESIA') ORDER BY c_0"}, //$NON-NLS-1$
ComparisonMode.EXACT_COMMAND_STRING );
checkNodeTypes(plan, new int[] {
2, // Access
1, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
2, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testBusObjQuestion2Hint() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getTypicalCapabilities();
caps.setCapabilitySupport(Capability.CRITERIA_IN_SUBQUERY, true);
caps.setCapabilitySupport(Capability.QUERY_SUBQUERIES_SCALAR, true);
caps.setCapabilitySupport(Capability.QUERY_SUBQUERIES_CORRELATED, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_SUM, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_AVG, true);
capFinder.addCapabilities("db2model", caps); //$NON-NLS-1$
capFinder.addCapabilities("oraclemodel", caps); //$NON-NLS-1$
capFinder.addCapabilities("msmodel", caps); //$NON-NLS-1$
QueryMetadataInterface metadata = RealMetadataFactory.exampleBusObj();
String sql = "SELECT SUM(F.SALES), G.REGION, T.YEAR " + //$NON-NLS-1$
"FROM SALES F MAKEDEP, GEOGRAPHY G, msModel.TIME T " + //$NON-NLS-1$
"WHERE (F.CITY = G.CITY) AND (F.MONTH = T.MONTH) " + //$NON-NLS-1$
"AND G.REGION IN ('BORDEAUX', 'POLINESIA') AND T.YEAR = '1999' " + //$NON-NLS-1$
"GROUP BY G.REGION, T.YEAR"; //$NON-NLS-1$
ProcessorPlan plan = helpPlan(sql,
metadata,
null, capFinder,
new String[] {"SELECT g_0.\"MONTH\" AS c_0, g_0.\"YEAR\" AS c_1 FROM msmodel.\"TIME\" AS g_0 WHERE g_0.\"YEAR\" = '1999' ORDER BY c_0",
"SELECT g_0.\"MONTH\", g_0.CITY, SUM(g_0.SALES) FROM db2model.SALES AS g_0 WHERE (g_0.\"MONTH\" IN (<dependent values>)) AND (g_0.CITY IN (<dependent values>)) GROUP BY g_0.\"MONTH\", g_0.CITY",
"SELECT g_0.CITY AS c_0, g_0.REGION AS c_1 FROM oraclemodel.GEOGRAPHY AS g_0 WHERE g_0.REGION IN ('BORDEAUX', 'POLINESIA') ORDER BY c_0"}, //$NON-NLS-1$
ComparisonMode.EXACT_COMMAND_STRING );
checkNodeTypes(plan, new int[] {
2, // Access
1, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
2, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testBusObjQuestion2HintVariation() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getTypicalCapabilities();
caps.setCapabilitySupport(Capability.CRITERIA_IN_SUBQUERY, true);
caps.setCapabilitySupport(Capability.QUERY_SUBQUERIES_SCALAR, true);
caps.setCapabilitySupport(Capability.QUERY_SUBQUERIES_CORRELATED, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_SUM, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_AVG, true);
capFinder.addCapabilities("db2model", caps); //$NON-NLS-1$
capFinder.addCapabilities("oraclemodel", caps); //$NON-NLS-1$
capFinder.addCapabilities("msmodel", caps); //$NON-NLS-1$
QueryMetadataInterface metadata = RealMetadataFactory.exampleBusObj();
String sql = "SELECT SUM(F.SALES), G.REGION, T.YEAR " + //$NON-NLS-1$
"FROM SALES F MAKEDEP, GEOGRAPHY2 G, msModel.TIME T " + //$NON-NLS-1$
"WHERE (F.CITY = G.CITY) AND (F.MONTH = T.MONTH) " + //$NON-NLS-1$
"AND G.REGION IN ('BORDEAUX', 'POLINESIA') AND T.YEAR = '1999' " + //$NON-NLS-1$
"GROUP BY G.REGION, T.YEAR"; //$NON-NLS-1$
ProcessorPlan plan = helpPlan(sql,
metadata,
null, capFinder,
new String[] {"SELECT g_0.\"MONTH\" AS c_0, g_0.\"YEAR\" AS c_1 FROM msmodel.\"TIME\" AS g_0 WHERE g_0.\"YEAR\" = '1999' ORDER BY c_0",
"SELECT g_0.\"MONTH\", g_1.REGION, SUM(g_0.SALES) FROM db2model.SALES AS g_0, db2model.GEOGRAPHY2 AS g_1 WHERE (g_0.CITY = g_1.CITY) AND (g_1.REGION IN ('BORDEAUX', 'POLINESIA')) AND (g_0.\"MONTH\" IN (<dependent values>)) GROUP BY g_0.\"MONTH\", g_1.REGION"}, //$NON-NLS-1$
ComparisonMode.EXACT_COMMAND_STRING );
checkNodeTypes(plan, new int[] {
1, // Access
1, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testBusObjQuestion3() {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getTypicalCapabilities();
caps.setCapabilitySupport(Capability.CRITERIA_IN_SUBQUERY, true);
caps.setCapabilitySupport(Capability.QUERY_SUBQUERIES_SCALAR, true);
caps.setCapabilitySupport(Capability.QUERY_SUBQUERIES_CORRELATED, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_SUM, true);
caps.setCapabilitySupport(Capability.QUERY_AGGREGATES_AVG, true);
capFinder.addCapabilities("db2model", caps); //$NON-NLS-1$
capFinder.addCapabilities("oraclemodel", caps); //$NON-NLS-1$
capFinder.addCapabilities("msmodel", caps); //$NON-NLS-1$
QueryMetadataInterface metadata = RealMetadataFactory.exampleBusObj();
String sql = "select sum(c0), sum(b0), c1, b2 FROM db2Table, OraTable where c2=b2 group by c1, b2"; //$NON-NLS-1$
ProcessorPlan plan = helpPlan(sql,
metadata,
null, capFinder,
new String[] {"SELECT g_0.c2, g_0.c1, g_0.c0 FROM db2model.DB2TABLE AS g_0", //$NON-NLS-1$
"SELECT g_0.b2 AS c_0, g_0.b0 AS c_1 FROM oraclemodel.OraTable AS g_0 ORDER BY c_0"}, //$NON-NLS-1$
SHOULD_SUCCEED );
checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
2, // Grouping
0, // NestedLoopJoinStrategy
1, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
0 // UnionAll
});
}
@Test public void testPushDownOverUnion() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan("select e1, max(e2) from (select e1, e2 from pm1.g1 union all select e1, e2 from pm1.g2) y group by e1", RealMetadataFactory.example1Cached(), null, capFinder, //$NON-NLS-1$
new String[]{"SELECT g_0.e1, MAX(g_0.e2) FROM pm1.g1 AS g_0 GROUP BY g_0.e1", "SELECT g_0.e1, MAX(g_0.e2) FROM pm1.g2 AS g_0 GROUP BY g_0.e1"}, ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
0, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
1 // UnionAll
});
}
/**
* olap not supported
*/
@Test public void testPushDownOverUnionFiltered() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan("select e1, count(*) filter (where e3) from (select e1, e2, e3 from pm1.g1 union all select e1, e2, e3 from pm1.g2) y group by e1", RealMetadataFactory.example1Cached(), null, capFinder, //$NON-NLS-1$
new String[]{"SELECT g_0.e1, g_0.e3 FROM pm1.g1 AS g_0", "SELECT g_0.e1, g_0.e3 FROM pm1.g2 AS g_0"}, ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
0, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
1 // UnionAll
});
}
@Test public void testPushDownOverUnionFiltered1() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.ADVANCED_OLAP, true);
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan("select e1, count(*) filter (where e3) from (select e1, e2, e3 from pm1.g1 union all select e1, e2, e3 from pm1.g2) y group by e1", RealMetadataFactory.example1Cached(), null, capFinder, //$NON-NLS-1$
new String[]{"SELECT g_0.e1, COUNT(*) FILTER(WHERE g_0.e3) FROM pm1.g1 AS g_0 GROUP BY g_0.e1", "SELECT g_0.e1, COUNT(*) FILTER(WHERE g_0.e3) FROM pm1.g2 AS g_0 GROUP BY g_0.e1"}, ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
0, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
1 // UnionAll
});
}
/**
* rand pushdown not supported
*/
@Test public void testPushDownOverUnionFiltered3() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
caps.setCapabilitySupport(Capability.ADVANCED_OLAP, true);
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan("select e1, count(*) filter (where e3 > rand()) from (select e1, e2, e3 from pm1.g1 union all select e1, e2, e3 from pm1.g2) y group by e1", RealMetadataFactory.example1Cached(), null, capFinder, //$NON-NLS-1$
new String[]{"SELECT g_0.e1, g_0.e3 FROM pm1.g1 AS g_0", "SELECT g_0.e1, g_0.e3 FROM pm1.g2 AS g_0"}, ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess
0, // DependentSelect
0, // DependentProject
0, // DupRemove
1, // Grouping
0, // NestedLoopJoinStrategy
0, // MergeJoinStrategy
0, // Null
0, // PlanExecution
1, // Project
0, // Select
0, // Sort
1 // UnionAll
});
}
@Test public void testPushDownOverUnion1() throws Exception {
FakeCapabilitiesFinder capFinder = new FakeCapabilitiesFinder();
BasicSourceCapabilities caps = getAggregateCapabilities();
capFinder.addCapabilities("pm1", caps); //$NON-NLS-1$
ProcessorPlan plan = TestOptimizer.helpPlan("select max(e2) from (select e1, e2 from pm1.g1 union all select e1, e2 from pm1.g2) z", RealMetadataFactory.example1Cached(), null, capFinder, //$NON-NLS-1$
new String[]{"SELECT MAX(g_0.e2) FROM pm1.g2 AS g_0", "SELECT MAX(g_0.e2) FROM pm1.g1 AS g_0"}, ComparisonMode.EXACT_COMMAND_STRING); //$NON-NLS-1$
TestOptimizer.checkNodeTypes(plan, new int[] {
2, // Access
0, // DependentAccess