Nemon Lou created HIVE-24165:
--------------------------------
Summary: CBO: Query fails after multiple count distinct rewrite
Key: HIVE-24165
URL: https://issues.apache.org/jira/browse/HIVE-24165
Project: Hive
Issue Type: Bug
Components: CBO
Affects Versions: 4.0.0
Reporter: Nemon Lou
One way to reproduce:
```
drop table test;
CREATE TABLE test(
`device_id` string,
`level` string,
`site_id` string,
`user_id` string,
`first_date` string,
`last_date` string,
`dt` string) ;
set hive.execution.engine=tez;
set hive.optimize.distinct.rewrite=true;
set hive.cli.print.header=true;
select
dt,
site_id,
count(DISTINCT t1.device_id) as device_tol_cnt,
count(DISTINCT case when t1.first_date='2020-09-15' then t1.device_id else null
end) as device_add_cnt
from test t1 where dt='2020-09-15'
group by
dt,
site_id
;
```
Error log:
```
Exception in thread "main" java.lang.AssertionError: Cannot add expression of
different type to set:Exception in thread "main" java.lang.AssertionError:
Cannot add expression of different type to set:set type is
RecordType(VARCHAR(2147483647) CHARACTER SET "UTF-16LE" COLLATE
"ISO-8859-1$en_US$primary" $f2, VARCHAR(2147483647) CHARACTER SET "UTF-16LE"
COLLATE "ISO-8859-1$en_US$primary" $f3, BIGINT $f2_0, BIGINT $f3_0) NOT
NULLexpression type is RecordType(VARCHAR(2147483647) CHARACTER SET "UTF-16LE"
COLLATE "ISO-8859-1$en_US$primary" $f2, BIGINT $f3, BIGINT $f2_0, BIGINT $f3_0)
NOT NULLset is rel#85:HiveAggregate.HIVE.[](input=HepRelVertex#84,group=\{2,
3},agg#0=count($0),agg#1=count($1))expression is HiveProject#95 at
org.apache.calcite.plan.RelOptUtil.verifyTypeEquivalence(RelOptUtil.java:411)
at org.apache.calcite.plan.hep.HepRuleCall.transformTo(HepRuleCall.java:57) at
org.apache.calcite.plan.RelOptRuleCall.transformTo(RelOptRuleCall.java:234) at
org.apache.calcite.rel.rules.AggregateProjectPullUpConstantsRule.onMatch(AggregateProjectPullUpConstantsRule.java:186)
at
org.apache.calcite.plan.AbstractRelOptPlanner.fireRule(AbstractRelOptPlanner.java:317)
at org.apache.calcite.plan.hep.HepPlanner.applyRule(HepPlanner.java:556) at
org.apache.calcite.plan.hep.HepPlanner.applyRules(HepPlanner.java:415) at
org.apache.calcite.plan.hep.HepPlanner.executeInstruction(HepPlanner.java:280)
at
org.apache.calcite.plan.hep.HepInstruction$RuleCollection.execute(HepInstruction.java:74)
at org.apache.calcite.plan.hep.HepPlanner.executeProgram(HepPlanner.java:211)
at org.apache.calcite.plan.hep.HepPlanner.findBestExp(HepPlanner.java:198) at
org.apache.hadoop.hive.ql.parse.CalcitePlanner$CalcitePlannerAction.hepPlan(CalcitePlanner.java:2273)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner$CalcitePlannerAction.applyPreJoinOrderingTransforms(CalcitePlanner.java:2002)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner$CalcitePlannerAction.apply(CalcitePlanner.java:1709)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner$CalcitePlannerAction.apply(CalcitePlanner.java:1609)
at org.apache.calcite.tools.Frameworks$1.apply(Frameworks.java:118) at
org.apache.calcite.prepare.CalcitePrepareImpl.perform(CalcitePrepareImpl.java:1052)
at org.apache.calcite.tools.Frameworks.withPrepare(Frameworks.java:154) at
org.apache.calcite.tools.Frameworks.withPlanner(Frameworks.java:111) at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.logicalPlan(CalcitePlanner.java:1414)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.getOptimizedAST(CalcitePlanner.java:1430)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.genOPTree(CalcitePlanner.java:450)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:12164)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:330)
at
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:285)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:659) at
org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1826) at
org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:1773) at
org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:1768) at
org.apache.hadoop.hive.ql.reexec.ReExecDriver.compileAndRespond(ReExecDriver.java:126)
at org.apache.hadoop.hive.ql.reexec.ReExecDriver.run(ReExecDriver.java:214) at
org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:239) at
org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:188) at
org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:402) at
org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:821) at
org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:759) at
org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:683) 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.apache.hadoop.util.RunJar.run(RunJar.java:318) at
org.apache.hadoop.util.RunJar.main(RunJar.java:232)
```
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