Calcite uses MutableRel (and a sub-class for each logical operator type) as a working representation when it is recognizing “free form” materializations (i.e. materializations that do not belong to a lattice). It seems that we don’t have coverage of all of the operator types. Some folks recently contributed an implementation of MutableJoin; see https://issues.apache.org/jira/browse/CALCITE-758 and referenced email discussion.
It’s not a bug on your part; it’s an incomplete implementation on Calcite’s part. I checked the code. MutableSort exists, but no code ever calls MutableSort.of to create one. It’s probably a two-line fix. Please log a jira case, and a fix or pull request would be appreciated. Julian On Jun 22, 2015, at 12:20 PM, Maryann Xue <[email protected]> wrote: > Hi Julian, > > I got materialized view working for Phoenix secondary index after the > walk-around fix in MaterializationService. But when I was trying with an > "order-by" case, I got the below "cannot translate into MutableRel" > exception. I managed to make it work by adding the translation from Sort > rel to MutableSort. So is this a bug and it shouldn't have gone though this > code path? And I'd like to understand what translation to MutableRel does > here. > > java.lang.RuntimeException: java.sql.SQLException: error while executing > SQL "explain plan for select a_string from aTable order by a_string": > cannot translate > rel#23:LogicalSort.NONE.[0](input=rel#21:LogicalProject.NONE.[](input=rel#0:PhoenixTableScan.PHOENIX_SERVER.[[0, > 1]](table=[phoenix, ATABLE]),A_STRING=$2),sort0=$0,dir0=ASC) to MutableRel > at > org.apache.phoenix.calcite.CalciteTest$Sql.getResult(CalciteTest.java:120) > at > org.apache.phoenix.calcite.CalciteTest$Sql.explainIs(CalciteTest.java:102) > at org.apache.phoenix.calcite.CalciteTest.testIndex(CalciteTest.java:888) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at > org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) > at > org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) > at > org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) > at > org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) > at > org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) > at > org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) > at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) > at > org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) > at > org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) > at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) > at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) > at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) > at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) > at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) > at > org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) > at > org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) > at org.junit.runners.ParentRunner.run(ParentRunner.java:363) > at > org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) > at > org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) > Caused by: java.sql.SQLException: error while executing SQL "explain plan > for select a_string from aTable order by a_string": cannot translate > rel#23:LogicalSort.NONE.[0](input=rel#21:LogicalProject.NONE.[](input=rel#0:PhoenixTableScan.PHOENIX_SERVER.[[0, > 1]](table=[phoenix, ATABLE]),A_STRING=$2),sort0=$0,dir0=ASC) to MutableRel > at org.apache.calcite.avatica.Helper.createException(Helper.java:41) > at > org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:112) > at > org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:130) > at > org.apache.phoenix.calcite.CalciteTest$Sql.getResult(CalciteTest.java:114) > ... 29 more > Caused by: java.lang.RuntimeException: cannot translate > rel#23:LogicalSort.NONE.[0](input=rel#21:LogicalProject.NONE.[](input=rel#0:PhoenixTableScan.PHOENIX_SERVER.[[0, > 1]](table=[phoenix, ATABLE]),A_STRING=$2),sort0=$0,dir0=ASC) to MutableRel > at > org.apache.calcite.plan.SubstitutionVisitor.toMutable(SubstitutionVisitor.java:244) > at > org.apache.calcite.plan.SubstitutionVisitor.<init>(SubstitutionVisitor.java:185) > at > org.apache.calcite.plan.volcano.VolcanoPlanner.substitute(VolcanoPlanner.java:410) > at > org.apache.calcite.plan.volcano.VolcanoPlanner.useMaterialization(VolcanoPlanner.java:368) > at > org.apache.calcite.plan.volcano.VolcanoPlanner.useApplicableMaterializations(VolcanoPlanner.java:458) > at > org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:739) > at org.apache.calcite.tools.Programs$5.run(Programs.java:272) > at org.apache.calcite.tools.Programs$SequenceProgram.run(Programs.java:320) > at org.apache.calcite.prepare.Prepare.optimize(Prepare.java:142) > at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:274) > at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:188) > at > org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:669) > at > org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:570) > at > org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:539) > at > org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:173) > at > org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:560) > at > org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:477) > at > org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:109) > ... 31 more > > > Thanks, > Maryann
