use of org.voltdb.plannodes.ProjectionPlanNode in project voltdb by VoltDB.
the class TestWindowedFunctions method validatePartitionedQuery.
private void validatePartitionedQuery(String query, boolean hasStatementOrderBy) {
List<AbstractPlanNode> nodes = compileToFragments(query);
assertEquals(2, nodes.size());
AbstractPlanNode child = nodes.get(0);
// Validate the coordinator fragment.
assertTrue(child instanceof SendPlanNode);
child = child.getChild(0);
assertTrue(child instanceof ProjectionPlanNode);
if (hasStatementOrderBy) {
child = child.getChild(0);
assertTrue(child instanceof OrderByPlanNode);
}
child = child.getChild(0);
assertTrue(child instanceof WindowFunctionPlanNode);
child = child.getChild(0);
assertTrue(child instanceof OrderByPlanNode);
child = child.getChild(0);
assertTrue(child instanceof ReceivePlanNode);
assertEquals(0, child.getChildCount());
// Get the distributed fragment.
child = nodes.get(1);
assertTrue(child instanceof SendPlanNode);
child = child.getChild(0);
assertTrue(child instanceof SeqScanPlanNode);
assertEquals(0, child.getChildCount());
}
use of org.voltdb.plannodes.ProjectionPlanNode in project voltdb by VoltDB.
the class TestPlansSubQueries method testUnions.
public void testUnions() {
AbstractPlanNode pn;
pn = compile("select A, C FROM (SELECT A, C FROM R1 UNION SELECT A, C FROM R2 UNION SELECT A, C FROM R3) T1 order by A ");
pn = pn.getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
pn = pn.getChild(0);
assertTrue(pn instanceof OrderByPlanNode);
pn = pn.getChild(0);
checkSeqScan(pn, "T1", "A", "C");
AbstractPlanNode upn = pn.getChild(0);
assertTrue(upn instanceof UnionPlanNode);
pn = upn.getChild(0);
checkSeqScan(pn, "R1", "A", "C");
pn = upn.getChild(1);
checkSeqScan(pn, "R2", "A", "C");
pn = upn.getChild(2);
checkSeqScan(pn, "R3", "A", "C");
String message = "This query is not plannable. It has a subquery which needs cross-partition access.";
failToCompile("select * FROM " + "(SELECT A, COUNT(*) FROM P1 GROUP BY A " + "UNION " + "SELECT A, COUNT(*) FROM R2 GROUP BY A) T1 , P2 where T1.A = P2.A ", message);
}
use of org.voltdb.plannodes.ProjectionPlanNode in project voltdb by VoltDB.
the class TestPlansSubQueries method testJoins.
public void testJoins() {
AbstractPlanNode pn;
List<AbstractPlanNode> planNodes;
AbstractPlanNode nlpn;
String sql, sqlNoSimplification, equivalentSql;
// Left Outer join
sql = "SELECT R1.A, R1.C FROM R1 LEFT JOIN (SELECT A, C FROM R2) T1 ON T1.C = R1.C ";
sqlNoSimplification = "SELECT R1.A, R1.C FROM R1 LEFT JOIN (SELECT A, C FROM R2 LIMIT 10) T1 ON T1.C = R1.C ";
equivalentSql = "SELECT R1.A, R1.C FROM R1 LEFT JOIN R2 T1 ON T1.C = R1.C ";
planNodes = compileToFragments(sqlNoSimplification);
assertEquals(1, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
nlpn = pn.getChild(0);
assertTrue(nlpn instanceof NestLoopPlanNode);
assertEquals(JoinType.LEFT, ((NestLoopPlanNode) nlpn).getJoinType());
pn = nlpn.getChild(0);
checkSeqScan(pn, "R1", "A", "C");
pn = nlpn.getChild(1);
checkSeqScan(pn, "T1", "C");
pn = pn.getChild(0);
checkSeqScan(pn, "R2", "A", "C");
checkSubquerySimplification(sql, equivalentSql);
// Join with partitioned tables
// Join on coordinator: LEFT OUTER JOIN, replicated table on left side
sql = "SELECT R1.A, R1.C FROM R1 LEFT JOIN (SELECT A, C FROM P1) T1 ON T1.C = R1.C ";
sqlNoSimplification = "SELECT R1.A, R1.C FROM R1 LEFT JOIN (SELECT DISTINCT A, C FROM P1) T1 ON T1.C = R1.C ";
equivalentSql = "SELECT R1.A, R1.C FROM R1 LEFT JOIN P1 T1 ON T1.C = R1.C ";
planNodes = compileToFragments(sqlNoSimplification);
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
nlpn = pn.getChild(0);
assertTrue(nlpn instanceof NestLoopPlanNode);
assertEquals(JoinType.LEFT, ((NestLoopPlanNode) nlpn).getJoinType());
pn = nlpn.getChild(0);
checkSeqScan(pn, "R1", "A", "C");
pn = nlpn.getChild(1);
assertEquals(PlanNodeType.RECEIVE, pn.getPlanNodeType());
pn = planNodes.get(1);
assertTrue(pn instanceof SendPlanNode);
pn = pn.getChild(0);
checkSeqScan(pn, "T1", "C");
checkSubquerySimplification(sql, equivalentSql);
// Group by inside of the subquery
// whether it contains group by or not does not matter, because we check it by whether inner side is partitioned or not
planNodes = compileToFragments("SELECT R1.A, R1.C FROM R1 LEFT JOIN (SELECT A, count(*) C FROM P1 GROUP BY A) T1 ON T1.C = R1.C ");
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
nlpn = pn.getChild(0);
assertTrue(nlpn instanceof NestLoopPlanNode);
assertEquals(JoinType.LEFT, ((NestLoopPlanNode) nlpn).getJoinType());
pn = nlpn.getChild(0);
checkSeqScan(pn, "R1", "A", "C");
pn = nlpn.getChild(1);
assertTrue(pn instanceof ReceivePlanNode);
pn = planNodes.get(1);
assertTrue(pn instanceof SendPlanNode);
pn = pn.getChild(0);
checkSeqScan(pn, "T1", "C");
pn = pn.getChild(0);
checkPrimaryKeyIndexScan(pn, "P1", "A", "C");
assertNotNull(pn.getInlinePlanNode(PlanNodeType.PROJECTION));
// Using index scan for group by only: use serial aggregate instead hash aggregate
assertNotNull(pn.getInlinePlanNode(PlanNodeType.AGGREGATE));
// LEFT partition table
planNodes = compileToFragments("SELECT T1.CC FROM P1 LEFT JOIN (SELECT A, count(*) CC FROM P2 GROUP BY A) T1 ON T1.A = P1.A ");
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
pn = pn.getChild(0);
assertTrue(pn instanceof ReceivePlanNode);
pn = planNodes.get(1);
assertTrue(pn instanceof SendPlanNode);
nlpn = pn.getChild(0);
assertTrue(nlpn instanceof NestLoopPlanNode);
assertEquals(JoinType.LEFT, ((NestLoopPlanNode) nlpn).getJoinType());
pn = nlpn.getChild(0);
checkPrimaryKeyIndexScan(pn, "P1");
pn = nlpn.getChild(1);
checkSeqScan(pn, "T1");
pn = pn.getChild(0);
checkPrimaryKeyIndexScan(pn, "P2");
assertNotNull(pn.getInlinePlanNode(PlanNodeType.PROJECTION));
// Using index scan for group by only: use serial aggregate instead hash aggregate
assertNotNull(pn.getInlinePlanNode(PlanNodeType.AGGREGATE));
// Right outer join
planNodes = compileToFragments("SELECT R1.A, R1.C FROM R1 RIGHT JOIN (SELECT A, count(*) C FROM P1 GROUP BY A) T1 ON T1.C = R1.C ");
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
pn = pn.getChild(0);
assertTrue(pn instanceof ReceivePlanNode);
pn = planNodes.get(1);
assertTrue(pn instanceof SendPlanNode);
nlpn = pn.getChild(0);
assertTrue(nlpn instanceof NestLoopPlanNode);
assertEquals(JoinType.LEFT, ((NestLoopPlanNode) nlpn).getJoinType());
pn = nlpn.getChild(1);
checkSeqScan(pn, "R1", "A", "C");
pn = nlpn.getChild(0);
checkSeqScan(pn, "T1", "C");
pn = pn.getChild(0);
checkPrimaryKeyIndexScan(pn, "P1", "A", "C");
assertNotNull(pn.getInlinePlanNode(PlanNodeType.PROJECTION));
// Using index scan for group by only: use serial aggregate instead hash aggregate
assertNotNull(pn.getInlinePlanNode(PlanNodeType.AGGREGATE));
// RIGHT partition table
planNodes = compileToFragments("SELECT T1.CC FROM P1 RIGHT JOIN (SELECT A, count(*) CC FROM P2 GROUP BY A) T1 ON T1.A = P1.A ");
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
pn = pn.getChild(0);
assertTrue(pn instanceof ReceivePlanNode);
pn = planNodes.get(1);
assertTrue(pn instanceof SendPlanNode);
nlpn = pn.getChild(0);
assertTrue(nlpn instanceof NestLoopIndexPlanNode);
assertEquals(JoinType.LEFT, ((NestLoopIndexPlanNode) nlpn).getJoinType());
pn = nlpn.getInlinePlanNode(PlanNodeType.INDEXSCAN);
checkPrimaryKeyIndexScan(pn, "P1");
pn = nlpn.getChild(0);
checkSeqScan(pn, "T1");
pn = pn.getChild(0);
checkPrimaryKeyIndexScan(pn, "P2");
assertNotNull(pn.getInlinePlanNode(PlanNodeType.PROJECTION));
// Using index scan for group by only: use serial aggregate instead hash aggregate
assertNotNull(pn.getInlinePlanNode(PlanNodeType.AGGREGATE));
// Join locally: inner join case for subselects
sql = "SELECT R1.A, R1.C FROM R1 INNER JOIN (SELECT A, C FROM P1) T1 ON T1.C = R1.C ";
sqlNoSimplification = "SELECT R1.A, R1.C FROM R1 INNER JOIN (SELECT DISTINCT A, C FROM P1) T1 ON T1.C = R1.C ";
equivalentSql = "SELECT R1.A, R1.C FROM R1 INNER JOIN P1 T1 ON T1.C = R1.C ";
planNodes = compileToFragments(sqlNoSimplification);
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
pn = pn.getChild(0);
assertTrue(pn instanceof ReceivePlanNode);
pn = planNodes.get(1);
assertTrue(pn instanceof SendPlanNode);
nlpn = pn.getChild(0);
assertTrue(nlpn instanceof NestLoopPlanNode);
assertEquals(JoinType.INNER, ((NestLoopPlanNode) nlpn).getJoinType());
pn = nlpn.getChild(0);
checkSeqScan(pn, "R1", "A", "C");
pn = nlpn.getChild(1);
checkSeqScan(pn, "T1", "C");
checkSubquerySimplification(sql, equivalentSql);
// Two sub-queries. One is partitioned and the other one is replicated
sql = "select A, AC FROM (SELECT A FROM R1) T1, (SELECT C AC FROM P1) T2 WHERE T1.A = T2.AC ";
sqlNoSimplification = "select A, AC FROM (SELECT A FROM R1 LIMIT 10) T1, (SELECT DISTINCT A AC FROM P1) T2 WHERE T1.A = T2.AC ";
equivalentSql = "select T1.A, T2.C AC FROM R1 T1, P1 T2 WHERE T1.A = T2.C ";
planNodes = compileToFragments(sqlNoSimplification);
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
pn = pn.getChild(0);
assertTrue(pn instanceof ReceivePlanNode);
pn = planNodes.get(1);
assertTrue(pn instanceof SendPlanNode);
nlpn = pn.getChild(0);
assertTrue(nlpn instanceof NestLoopPlanNode);
assertEquals(JoinType.INNER, ((NestLoopPlanNode) nlpn).getJoinType());
pn = nlpn.getChild(0);
checkSeqScan(pn, "T1", "A");
pn = pn.getChild(0);
checkSeqScan(pn, "R1", "A");
pn = nlpn.getChild(1);
checkSeqScan(pn, "T2", "AC");
checkSubquerySimplification(sql, equivalentSql);
// This is a single fragment plan because planner can detect "A = 3".
// Join locally
sql = "select A1, A2 FROM (SELECT A A1 FROM R1) T1, (SELECT A A2 FROM P1 where A = 3) T2 WHERE T1.A1 = T2.A2 ";
sqlNoSimplification = "select A2, A1 FROM (SELECT DISTINCT A A1 FROM R1) T1, (SELECT DISTINCT A A2 FROM P1 where A = 3) T2 WHERE T1.A1 = T2.A2 ";
equivalentSql = "select T1.A A1, T2.A A2 FROM R1 T1 join P1 T2 on T2.A = 3 and T1.A = T2.A";
planNodes = compileToFragments(sqlNoSimplification);
assertEquals(1, planNodes.size());
pn = planNodes.get(0);
assertTrue(pn instanceof SendPlanNode);
pn = pn.getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
nlpn = pn.getChild(0);
assertTrue(nlpn instanceof NestLoopPlanNode);
pn = nlpn.getChild(0);
checkSeqScan(pn, "T1", "A1");
pn = nlpn.getChild(1);
checkSeqScan(pn, "T2", "A2");
pn = pn.getChild(0);
checkPrimaryKeyIndexScan(pn, "P1", "A");
assertEquals(2, ((IndexScanPlanNode) pn).getInlinePlanNodes().size());
assertNotNull(((IndexScanPlanNode) pn).getInlinePlanNode(PlanNodeType.PROJECTION));
assertNotNull(((IndexScanPlanNode) pn).getInlinePlanNode(PlanNodeType.AGGREGATE));
checkSubquerySimplification(sql, equivalentSql);
// More single partition detection
planNodes = compileToFragments("select C FROM (SELECT P1.C FROM P1, P2 " + "WHERE P1.A = P2.A AND P1.A = 3) T1 ");
assertEquals(1, planNodes.size());
planNodes = compileToFragments("select T1.C FROM (SELECT P1.C FROM P1, P2 " + "WHERE P1.A = P2.A AND P1.A = 3) T1, R1 where T1.C > R1.C ");
assertEquals(1, planNodes.size());
planNodes = compileToFragments("select T1.C FROM (SELECT P1.C FROM P1, P2 " + "WHERE P1.A = P2.A AND P1.A = 3) T1, (select C FROM R1) T2 where T1.C > T2.C ");
assertEquals(1, planNodes.size());
}
use of org.voltdb.plannodes.ProjectionPlanNode in project voltdb by VoltDB.
the class TestPlansSubQueries method testPartitionedGroupByWithoutAggregate.
public void testPartitionedGroupByWithoutAggregate() {
AbstractPlanNode pn;
List<AbstractPlanNode> planNodes;
// group by non-partition column, no pushed down
planNodes = compileToFragments("SELECT * FROM (SELECT C FROM P1 GROUP BY C) T1");
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
checkSeqScan(pn, "T1");
pn = pn.getChild(0);
assertTrue(pn instanceof HashAggregatePlanNode);
pn = planNodes.get(1).getChild(0);
checkPrimaryKeyIndexScan(pn, "P1");
// count(*), no pushed down
planNodes = compileToFragments("SELECT count(*) FROM (SELECT c FROM P1 GROUP BY c) T1");
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof TableCountPlanNode);
pn = pn.getChild(0);
assertTrue(pn instanceof HashAggregatePlanNode);
pn = planNodes.get(1).getChild(0);
checkPrimaryKeyIndexScan(pn, "P1");
// group by partition column, pushed down
planNodes = compileToFragments("SELECT * FROM (SELECT A FROM P1 GROUP BY A) T1");
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
assertTrue(pn.getChild(0) instanceof ReceivePlanNode);
pn = planNodes.get(1).getChild(0);
checkSeqScan(pn, "T1");
pn = pn.getChild(0);
checkPrimaryKeyIndexScan(pn, "P1");
planNodes = compileToFragments("SELECT count(*) FROM (SELECT A FROM P1 GROUP BY A) T1");
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn.getChild(0) instanceof ReceivePlanNode);
pn = planNodes.get(1).getChild(0);
assertTrue(pn instanceof TableCountPlanNode);
pn = pn.getChild(0);
checkPrimaryKeyIndexScan(pn, "P1");
}
use of org.voltdb.plannodes.ProjectionPlanNode in project voltdb by VoltDB.
the class TestPlansSubQueries method checkReplicatedTwo.
private void checkReplicatedTwo(String sql, int nljCount, int nlijCount) {
AbstractPlanNode pn;
List<AbstractPlanNode> planNodes;
planNodes = compileToFragments(sql);
assertEquals(2, planNodes.size());
pn = planNodes.get(0).getChild(0);
assertTrue(pn instanceof ProjectionPlanNode);
pn = pn.getChild(0);
assertTrue(pn instanceof ReceivePlanNode);
pn = planNodes.get(1);
assertTrue(pn instanceof SendPlanNode);
checkJoinNode(pn, PlanNodeType.NESTLOOP, nljCount);
checkJoinNode(pn, PlanNodeType.NESTLOOPINDEX, nlijCount);
}
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