Hengyu Dai created HIVE-18042: --------------------------------- Summary: Correlation Optimizer NPE when there is multi 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} -- This message was sent by Atlassian JIRA (v6.4.14#64029)