EmmyMiao87 opened a new issue #6017:
URL: https://github.com/apache/incubator-doris/issues/6017
**Describe the bug**
When 'disable_colocate_join'= true, the group by query will thrown
'NullPointerException' using pymysql.
**To Reproduce**
Steps to reproduce the behavior:
1. set disable_colocate_plan=true;
2. first query by python
```
select k1, 1 from unique_table where k1 in ("752643143190597632") group by
k1
```
3. ```pymysql.err.ProgrammingError: (1064, 'errCode = 2, detailMessage =
Unexpected exception: null')```
4. fe log
```
2021-06-11 11:16:05,363 WARN (doris-mysql-nio-pool-9|4275)
[StmtExecutor.analyze():539] Analyze failed because
java.lang.NullPointerException: null
at
org.apache.doris.planner.DistributedPlanner.canColocateAgg(DistributedPlanner.java:941)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.planner.DistributedPlanner.createAggregationFragment(DistributedPlanner.java:924)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.planner.DistributedPlanner.createPlanFragments(DistributedPlanner.java:216)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.planner.DistributedPlanner.createPlanFragments(DistributedPlanner.java:103)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.planner.Planner.createPlanFragments(Planner.java:216)
~[palo-fe.jar:3.4.0]
at org.apache.doris.planner.Planner.plan(Planner.java:84)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.qe.StmtExecutor.analyzeAndGenerateQueryPlan(StmtExecutor.java:642)
~[palo-fe.jar:3.4.0]
at org.apache.doris.qe.StmtExecutor.analyze(StmtExecutor.java:527)
~[palo-fe.jar:3.4.0]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:314)
~[palo-fe.jar:3.4.0]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:288)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:206)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.qe.ConnectProcessor.dispatch(ConnectProcessor.java:344)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.qe.ConnectProcessor.processOnce(ConnectProcessor.java:546)
~[palo-fe.jar:3.4.0]
at
org.apache.doris.mysql.nio.ReadListener.lambda$handleEvent$0(ReadListener.java:50)
~[palo-fe.jar:3.4.0]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[?:1.8.0_161]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[?:1.8.0_161]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
```
**Expected behavior**
Result correct.
**Desktop (please complete the following information):**
1. python + pymysql
2. Doris 0.14.12
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