Khurram Faraaz created DRILL-5945: ------------------------------------- Summary: Streaming aggregate does not support schema changes Key: DRILL-5945 URL: https://issues.apache.org/jira/browse/DRILL-5945 Project: Apache Drill Issue Type: Bug Components: Execution - Flow Affects Versions: 1.11.0 Reporter: Khurram Faraaz
There are two JSON files, one of the arrays "arr" in f2.json is empty, whereas array "arr" in f1.json is not empty, a count on arr results in, "Streaming aggregate does not support schema changes" {noformat} 0: jdbc:drill:schema=dfs.tmp> select count(arr) from `f*.json`; Error: UNSUPPORTED_OPERATION ERROR: Streaming aggregate does not support schema changes Prior schema : BatchSchema [fields=[arr(VARCHAR:REPEATED) [$data$(VARCHAR:REQUIRED)]], selectionVector=NONE] New schema : BatchSchema [fields=[arr(INT:REPEATED) [$data$(INT:REQUIRED)]], selectionVector=NONE] Fragment 0:0 [Error Id: 9081b02f-0de8-486a-b58b-f28ec3b84d98 on centos-01.qa.lab:31010] (state=,code=0) {noformat} Stack trace from drillbit.log {noformat} 2017-11-08 13:36:48,159 [25fc870f-e4d6-7107-c6cc-6e68ba92c4ba:frag:0:0] INFO o.a.d.e.p.i.a.StreamingAggBatch - User Error Occurred: Streaming aggregate does not support schema changes Prior schema : BatchSchema [fields=[arr(VARCHAR:REPEATED) [$data$(VARCHAR:REQUIRED)]], selectionVector=NONE] New schema : BatchSchema [fields=[arr(INT:REPEATED) [$data$(INT:REQUIRED)]], selectionVector=NONE] org.apache.drill.common.exceptions.UserException: UNSUPPORTED_OPERATION ERROR: Streaming aggregate does not support schema changes Prior schema : BatchSchema [fields=[arr(VARCHAR:REPEATED) [$data$(VARCHAR:REQUIRED)]], selectionVector=NONE] New schema : BatchSchema [fields=[arr(INT:REPEATED) [$data$(INT:REQUIRED)]], selectionVector=NONE] [Error Id: 9081b02f-0de8-486a-b58b-f28ec3b84d98 ] at org.apache.drill.common.exceptions.UserException$Builder.build(UserException.java:586) ~[drill-common-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.physical.impl.aggregate.StreamingAggBatch.innerNext(StreamingAggBatch.java:207) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:164) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:134) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:164) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:105) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:81) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:95) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:234) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:227) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_144] at javax.security.auth.Subject.doAs(Subject.java:422) [na:1.8.0_144] at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1595) [hadoop-common-2.7.0-mapr-1607.jar:na] at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:227) [drill-java-exec-1.11.0-mapr.jar:1.11.0-mapr] at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38) [drill-common-1.11.0-mapr.jar:1.11.0-mapr] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_144] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_144] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144] {noformat} Data used in the query {noformat} [root@centos-01 json_data]# cat f1.json { "id":1, "arr":["str1","str2","str3","str4"] } [root@centos-01 json_data]# cat f2.json { "id":2, "arr":[] } >From sqlline OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=512M; support was removed in 8.0 apache drill 1.11.0-mapr "got drill?" 0: jdbc:drill:schema=dfs.tmp> select * from `f*.json`; +-----+--------------------------------+ | id | arr | +-----+--------------------------------+ | 1 | ["str1","str2","str3","str4"] | | 2 | [] | +-----+--------------------------------+ 2 rows selected (0.447 seconds) 0: jdbc:drill:schema=dfs.tmp> select * from `f1.json`; +-----+--------------------------------+ | id | arr | +-----+--------------------------------+ | 1 | ["str1","str2","str3","str4"] | +-----+--------------------------------+ 1 row selected (0.202 seconds) 0: jdbc:drill:schema=dfs.tmp> select * from `f2.json`; +-----+------+ | id | arr | +-----+------+ | 2 | [] | +-----+------+ 1 row selected (0.199 seconds) {noformat} -- This message was sent by Atlassian JIRA (v6.4.14#64029)