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https://issues.apache.org/jira/browse/HIVE-18042?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Hengyu Dai updated HIVE-18042:
------------------------------
Summary: Correlation Optimizer lead to NPE when there's multi
subquery(select distinct) union all operation after join (was: Correlation
Optimizer lead to NPE when there is multi union all operation after join )
> Correlation Optimizer lead to NPE when there's multi subquery(select
> distinct) union all operation after join
> --------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-18042
> URL: https://issues.apache.org/jira/browse/HIVE-18042
> Project: Hive
> Issue Type: Bug
> Components: Logical Optimizer
> Affects Versions: 2.1.1
> Environment:
> Reporter: Hengyu Dai
>
> test sql:
> {code:sql}
> SELECT DISTINCT a.logday AS push_day, a.mtype, a.t, If(b.msgid IS NULL, 'no',
> 'yes') AS isnotdaoda, a.platform
> , a.uid, a.dt
> FROM (SELECT DISTINCT If(tokentype = '7', msgid, If(tokentype = '6',
> regexp_extract(sendpushresult, 'msgId":"([^"]+)', 1),
> regexp_extract(sendpushresult, 'msgId=(.+?),', 1))) AS msgid, logday, If(vid
> LIKE '60%', 'adr', If(vid LIKE '8%', 'ios', 'other')) AS platform, mtype, t
> , If(vid LIKE '8%', uid, gid) AS uid, concat(substr(logday, 1, 4),
> '-', substr(logday, 5, 2), '-', substr(logday, 7, 2)) AS dt
> FROM wirelessdata.orig_push_client
> ) a
> LEFT JOIN (SELECT DISTINCT msgid
> FROM (
> SELECT DISTINCT msgid
> FROM wirelessdata.orig_push_return
> UNION ALL
> SELECT DISTINCT msgid
> FROM wirelessdata.orig_push_return_xiaomi
> UNION ALL
> SELECT DISTINCT regexp_extract(action, '"id"："([^"]+)', 1) AS
> msgid
> FROM wirelessdata.ods_client_behavior_hour4spark
> ) bb
> ) b ON lower(a.msgid) = lower(b.msgid)
> {code}
> the error stack
> {code:java}
> 2017-11-10T16:01:21,123 ERROR [9b7d82f5-dfc8-43ac-8d6f-a019d8677392 main]
> ql.Driver: FAILED: NullPointerException null
> java.lang.NullPointerException
> at
> org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils.setUnionPlan(GenMapRedUtils.java:230)
> at
> org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils.joinUnionPlan(GenMapRedUtils.java:287)
> at
> org.apache.hadoop.hive.ql.optimizer.GenMRRedSink3.process(GenMRRedSink3.java:100)
> at
> org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:90)
> at
> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatchAndReturn(DefaultGraphWalker.java:105)
> at
> org.apache.hadoop.hive.ql.parse.GenMapRedWalker.walk(GenMapRedWalker.java:54)
> at
> org.apache.hadoop.hive.ql.parse.GenMapRedWalker.walk(GenMapRedWalker.java:65)
> at
> org.apache.hadoop.hive.ql.parse.GenMapRedWalker.walk(GenMapRedWalker.java:65)
> at
> org.apache.hadoop.hive.ql.parse.GenMapRedWalker.walk(GenMapRedWalker.java:65)
> at
> org.apache.hadoop.hive.ql.parse.GenMapRedWalker.walk(GenMapRedWalker.java:65)
> at
> org.apache.hadoop.hive.ql.parse.GenMapRedWalker.walk(GenMapRedWalker.java:65)
> at
> org.apache.hadoop.hive.ql.parse.GenMapRedWalker.walk(GenMapRedWalker.java:65)
> at
> org.apache.hadoop.hive.ql.parse.GenMapRedWalker.walk(GenMapRedWalker.java:65)
> at
> org.apache.hadoop.hive.ql.parse.GenMapRedWalker.walk(GenMapRedWalker.java:65)
> at
> org.apache.hadoop.hive.ql.parse.GenMapRedWalker.walk(GenMapRedWalker.java:65)
> at
> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:120)
> at
> org.apache.hadoop.hive.ql.parse.MapReduceCompiler.generateTaskTree(MapReduceCompiler.java:323)
> at
> org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:267)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:11008)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10547)
> at
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:250)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:483)
> at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1254)
> at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1396)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1181)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1170)
> at
> org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:229)
> at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:180)
> at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:396)
> at
> org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:770)
> at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:711)
> at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:638)
> 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:497)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
> {code}
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