public void testMultiPartLimitPushdownByOne() {
List<AbstractPlanNode> pn =
compileToFragments("select A1, count(*) as tag from T1 group by A1 order by 1 limit 1");
for (AbstractPlanNode nd : pn) {
System.out.println("PlanNode Explain string:\n" + nd.toExplainPlanString());
assertTrue(nd.toExplainPlanString().contains("LIMIT"));
}
}
protected String buildExplainPlan(List<AbstractPlanNode> planNodes) {
String explain = "";
for (AbstractPlanNode apn : planNodes) {
explain += apn.toExplainPlanString() + '\n';
}
return explain;
}
@Override
public String toString() {
if (rootPlanGraph != null) {
return "CompiledPlan: \n" + rootPlanGraph.toExplainPlanString();
} else {
return "CompiledPlan: [null plan graph]";
}
}
protected void printExplainPlan(List<AbstractPlanNode> planNodes) {
for (AbstractPlanNode apn : planNodes) {
System.out.println(apn.toExplainPlanString());
}
}
public void testBasicUpdateAndDelete() {
// select * with ON clause should return all columns from all tables
AbstractPlanNode n;
AbstractPlanNode pn;
pns = compileToFragments("UPDATE R1 SET C = 1 WHERE C = 0");
pn = pns.get(0);
System.out.println(pn.toExplainPlanString());
n = pn.getChild(0).getChild(0);
assertTrue(n instanceof ReceivePlanNode);
pn = pns.get(1);
n = pn.getChild(0);
assertTrue(n instanceof UpdatePlanNode);
pns = compileToFragments("DELETE FROM R1 WHERE C = 0");
pn = pns.get(0);
System.out.println(pn.toExplainPlanString());
n = pn.getChild(0).getChild(0);
assertTrue(n instanceof ReceivePlanNode);
pn = pns.get(1);
n = pn.getChild(0);
assertTrue(n instanceof DeletePlanNode);
pns = compileToFragments("INSERT INTO R1 VALUES (1, 2, 3)");
pn = pns.get(0);
System.out.println(pn.toExplainPlanString());
n = pn.getChild(0).getChild(0);
assertTrue(n instanceof ReceivePlanNode);
pn = pns.get(1);
n = pn.getChild(0);
assertTrue(n instanceof InsertPlanNode);
pns = compileToFragments("UPDATE P1 SET C = 1 WHERE C = 0");
pn = pns.get(0);
System.out.println(pn.toExplainPlanString());
n = pn.getChild(0).getChild(0);
assertTrue(n instanceof ReceivePlanNode);
pn = pns.get(1);
n = pn.getChild(0);
assertTrue(n instanceof UpdatePlanNode);
pns = compileToFragments("DELETE FROM P1 WHERE C = 0");
pn = pns.get(0);
System.out.println(pn.toExplainPlanString());
n = pn.getChild(0).getChild(0);
assertTrue(n instanceof ReceivePlanNode);
pn = pns.get(1);
n = pn.getChild(0);
assertTrue(n instanceof DeletePlanNode);
pns = compileToFragments("UPDATE P1 SET C = 1 WHERE A = 0");
pn = pns.get(0);
System.out.println(pn.toExplainPlanString());
// n = pn.getChild(0);
assertTrue(pn instanceof UpdatePlanNode);
pns = compileToFragments("DELETE FROM P1 WHERE A = 0");
pn = pns.get(0);
System.out.println(pn.toExplainPlanString());
// n = pn.getChild(0);
assertTrue(pn instanceof DeletePlanNode);
pns = compileToFragments("INSERT INTO P1 VALUES (1, 2)");
pn = pns.get(0);
System.out.println(pn.toExplainPlanString());
// n = pn.getChild(0).getChild(0);
assertTrue(pn instanceof InsertPlanNode);
}