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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2019/07/28 13:33:48 UTC
[GitHub] [incubator-druid] sashidhar edited a comment on issue #6433: SQL:
Bizarre error when computing min(string)
sashidhar edited a comment on issue #6433: SQL: Bizarre error when computing min(string)
URL: https://github.com/apache/incubator-druid/issues/6433#issuecomment-515763342
This is still the case. Adding a unit test in **CalciteQueryTest** (for testing) with query
` SELECT min('foo') FROM druid.foo`
results in the following:
```
java.lang.RuntimeException: Error while applying rule DruidQueryRule(AGGREGATE), args [rel#20:LogicalAggregate.NONE.[](input=rel#19:Subset#2.NONE.[],group={},EXPR$0=MIN($0)), rel#26:DruidQueryRel.NONE.[](query={"queryType":"scan","dataSource":{"type":"table","name":"foo"},"intervals":{"type":"intervals","intervals":["-146136543-09-08T08:23:32.096Z/146140482-04-24T15:36:27.903Z"]},"virtualColumns":[{"type":"expression","name":"v0","expression":"'foo'","outputType":"STRING"}],"resultFormat":"compactedList","batchSize":20480,"limit":9223372036854775807,"order":"none","filter":null,"columns":["v0"],"legacy":false,"context":{"defaultTimeout":300000,"maxScatterGatherBytes":9223372036854775807,"sqlCurrentTimestamp":"2000-01-01T00:00:00Z","sqlQueryId":"dummy","vectorize":"false"},"descending":false,"granularity":{"type":"all"}},signature={v0:STRING})]
at org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:236)
at org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:646)
at org.apache.calcite.tools.Programs$RuleSetProgram.run(Programs.java:339)
at org.apache.calcite.tools.Programs$SequenceProgram.run(Programs.java:358)
at org.apache.calcite.prepare.PlannerImpl.transform(PlannerImpl.java:337)
at org.apache.druid.sql.calcite.planner.DruidPlanner.planWithDruidConvention(DruidPlanner.java:119)
at org.apache.druid.sql.calcite.planner.DruidPlanner.plan(DruidPlanner.java:89)
at org.apache.druid.sql.SqlLifecycle.plan(SqlLifecycle.java:141)
at org.apache.druid.sql.SqlLifecycle.planAndAuthorize(SqlLifecycle.java:207)
at org.apache.druid.sql.SqlLifecycle.runSimple(SqlLifecycle.java:244)
at org.apache.druid.sql.calcite.BaseCalciteQueryTest.getResults(BaseCalciteQueryTest.java:619)
at org.apache.druid.sql.calcite.BaseCalciteQueryTest.getResults(BaseCalciteQueryTest.java:566)
at org.apache.druid.sql.calcite.BaseCalciteQueryTest.testQuery(BaseCalciteQueryTest.java:554)
at org.apache.druid.sql.calcite.BaseCalciteQueryTest.testQuery(BaseCalciteQueryTest.java:464)
at org.apache.druid.sql.calcite.CalciteQueryTest.testMin(CalciteQueryTest.java:5513)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
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.apache.druid.sql.calcite.util.QueryLogHook$1.evaluate(QueryLogHook.java:95)
at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
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$2.evaluate(ParentRunner.java:268)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: org.apache.druid.java.util.common.ISE: Cannot create aggregator factory for type[STRING]
at org.apache.druid.sql.calcite.aggregation.builtin.MinSqlAggregator.createMinAggregatorFactory(MinSqlAggregator.java:72)
at org.apache.druid.sql.calcite.aggregation.builtin.MinSqlAggregator.getAggregation(MinSqlAggregator.java:53)
at org.apache.druid.sql.calcite.aggregation.builtin.SimpleSqlAggregator.toDruidAggregation(SimpleSqlAggregator.java:86)
at org.apache.druid.sql.calcite.rule.GroupByRules.translateAggregateCall(GroupByRules.java:131)
at org.apache.druid.sql.calcite.rel.DruidQuery.computeAggregations(DruidQuery.java:435)
at org.apache.druid.sql.calcite.rel.DruidQuery.computeGrouping(DruidQuery.java:285)
at org.apache.druid.sql.calcite.rel.DruidQuery.<init>(DruidQuery.java:167)
at org.apache.druid.sql.calcite.rel.PartialDruidQuery.build(PartialDruidQuery.java:306)
at org.apache.druid.sql.calcite.rel.DruidQueryRel.toDruidQuery(DruidQueryRel.java:97)
at org.apache.druid.sql.calcite.rel.DruidQueryRel.toDruidQueryForExplaining(DruidQueryRel.java:109)
at org.apache.druid.sql.calcite.rel.DruidRel.isValidDruidQuery(DruidRel.java:62)
at org.apache.druid.sql.calcite.rule.DruidRules$DruidQueryRule.onMatch(DruidRules.java:132)
at org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:212)
... 44 more
```
What is expected here to handle this ?
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