Can you log a JIRA case for this? I will answer there.
On Thu, Jan 19, 2017 at 11:25 AM, Γιώργος Θεοδωράκης
<giwrgosrth...@gmail.com> wrote:
> Hello,
>
> I have created my own operators and Convention to apply my custom cost
> logic. I have tried many rules with both Volcano and HepPlanner and
> everything works fine. When I apply LoptOptimizeRule I get the correct
> output. However, when I try to use:
> JoinPushThroughJoinRule.LEFT,
> JoinPushThroughJoinRule.RIGHT,
> JoinAssociateRule.INSTANCE,
> JoinCommuteRule.INSTANCE
> something goes wrong. I try to apply them in VolcanoPlanner in the same
> step I use my converter rules to change the initial Logical Operators to
> the custom ones.
> I declare them as:
> static final RelOptRule SABER_JOIN_PUSH_THROUGH_JOIN_RULE_RIGHT = new
> JoinPushThroughJoinRule("JoinPushThroughJoinRule", true,
> SaberJoinRel.class, SaberRelFactories.SABER_LOGICAL_BUILDER);
> static final RelOptRule SABER_JOIN_PUSH_THROUGH_JOIN_RULE_LEFT = new
> JoinPushThroughJoinRule("JoinPushThroughJoinRule", false,
> SaberJoinRel.class, SaberRelFactories.SABER_LOGICAL_BUILDER);
>
> static final RelOptRule SABER_JOIN_COMMUTE_RULE = new
> JoinCommuteRule(SaberJoinRel.class,
> SaberRelFactories.SABER_LOGICAL_BUILDER, false);
> So, when I use the four of them I get:
>
> Exception in thread "main" java.lang.AssertionError: Internal error: Error
> while applying rule SaberProjectRule, args
> [rel#171:LogicalProject.NONE.[](input=rel#170:Subset#20.LOGICAL.[],rowtime=$8,customerid=$9,phone=$10,rowtime0=$0,orderid=$1,productid=$2,units=$3,customerid0=$4,rowtime00=$5,productid0=$6,description=$7)]
> at org.apache.calcite.util.Util.newInternal(Util.java:792)
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:236)
> at
> org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:819)
> at org.apache.calcite.tools.Programs$RuleSetProgram.run(Programs.java:334)
> at org.apache.calcite.prepare.PlannerImpl.transform(PlannerImpl.java:308)
> at calcite.planner.SaberPlanner.getLogicalPlan(SaberPlanner.java:257)
> at calcite.Tester.main(Tester.java:183)
> Caused by: java.lang.AssertionError: Internal error: Error occurred while
> applying rule SaberProjectRule
> at org.apache.calcite.util.Util.newInternal(Util.java:792)
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.transformTo(VolcanoRuleCall.java:148)
> at
> org.apache.calcite.plan.RelOptRuleCall.transformTo(RelOptRuleCall.java:225)
> at
> org.apache.calcite.rel.convert.ConverterRule.onMatch(ConverterRule.java:117)
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:213)
> ... 5 more
> Caused by: org.apache.calcite.rel.metadata.CyclicMetadataException
> at
> org.apache.calcite.rel.metadata.CyclicMetadataException.<clinit>(CyclicMetadataException.java:28)
> at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
> at
> org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:201)
> at
> org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:132)
> at GeneratedMetadataHandler_RowCount.getRowCount_$(Unknown Source)
> at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
> at
> org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:201)
>
> ....
>
> If it helps, when I don't use JoinCommuteRule I don't get an exception, but
> I get wrong result and when I don't use JoinAssociateRule I get:
>
> Exception in thread "main" java.lang.StackOverflowError
> at
> com.google.common.collect.ImmutableCollection.<init>(ImmutableCollection.java:157)
> at com.google.common.collect.ImmutableList.<init>(ImmutableList.java:313)
> at
> com.google.common.collect.SingletonImmutableList.<init>(SingletonImmutableList.java:35)
> at com.google.common.collect.ImmutableList.of(ImmutableList.java:76)
> at org.apache.calcite.rel.SingleRel.getInputs(SingleRel.java:63)
> at
> org.apache.calcite.plan.volcano.RelSubset$CheapestPlanReplacer.visit(RelSubset.java:461)
>
> Thank you in advance,
> George
