killxdcj opened a new issue #5583:
URL: https://github.com/apache/incubator-doris/issues/5583
Forget to copy realchildren when initializing GroupingFunctionCallExpr
through the copy constructor
> public GroupingFunctionCallExpr(GroupingFunctionCallExpr other) {
> super(other);
> this.childrenReseted = other.childrenReseted;
> }
realchildren should be copy too?
> public GroupingFunctionCallExpr(GroupingFunctionCallExpr other) {
> super(other);
> this.childrenReseted = other.childrenReseted;
> if (this.childrenReseted) {
> this.realChildren = Expr.cloneList(other.realChildren);
> }
> }
NPE will throwed when run the fllowing sql
> SELECT col1,
> IF(GROUPING(`col1`) = 1, COUNT(col1), 0) AS class_count,
> col2,
> IF(GROUPING(`col2`) = 1, COUNT(col2), 0) AS school_count
> FROM test
> GROUP BY
> GROUPING SETS(
> (col1, col2),
> (col1)
> )
Exception Stack
> 2021-03-30 21:28:56,089 WARN (doris-mysql-nio-pool-11567|122281)
[StmtExecutor.analyze():467] Analyze failed because
> java.lang.NullPointerException: null
> at java.util.ArrayList.addAll(ArrayList.java:701) ~[?:?]
> at
org.apache.doris.analysis.GroupingFunctionCallExpr.reset(GroupingFunctionCallExpr.java:92)
~[palo-fe.jar:?]
> at org.apache.doris.analysis.Expr.reset(Expr.java:926) ~[palo-fe.jar:?]
> at org.apache.doris.analysis.Expr.reset(Expr.java:926) ~[palo-fe.jar:?]
> at
org.apache.doris.analysis.SelectListItem.<init>(SelectListItem.java:49)
~[palo-fe.jar:?]
> at
org.apache.doris.analysis.SelectListItem.clone(SelectListItem.java:58)
~[palo-fe.jar:?]
> at org.apache.doris.analysis.SelectList.<init>(SelectList.java:45)
~[palo-fe.jar:?]
> at org.apache.doris.analysis.SelectList.clone(SelectList.java:104)
~[palo-fe.jar:?]
> at org.apache.doris.analysis.SelectStmt.<init>(SelectStmt.java:151)
~[palo-fe.jar:?]
> at org.apache.doris.analysis.SelectStmt.clone(SelectStmt.java:190)
~[palo-fe.jar:?]
> at
org.apache.doris.analysis.InlineViewRef.<init>(InlineViewRef.java:99)
~[palo-fe.jar:?]
> at
org.apache.doris.analysis.Analyzer.resolveTableRef(Analyzer.java:480)
~[palo-fe.jar:?]
> at org.apache.doris.analysis.FromClause.analyze(FromClause.java:130)
~[palo-fe.jar:?]
> at org.apache.doris.analysis.SelectStmt.analyze(SelectStmt.java:343)
~[palo-fe.jar:?]
> at
org.apache.doris.qe.StmtExecutor.analyzeAndGenerateQueryPlan(StmtExecutor.java:485)
~[palo-fe.jar:?]
> at org.apache.doris.qe.StmtExecutor.analyze(StmtExecutor.java:455)
~[palo-fe.jar:?]
> at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:243)
~[palo-fe.jar:?]
> at
org.apache.doris.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:193)
~[palo-fe.jar:?]
> at
org.apache.doris.qe.ConnectProcessor.dispatch(ConnectProcessor.java:325)
~[palo-fe.jar:?]
> at
org.apache.doris.qe.ConnectProcessor.processOnce(ConnectProcessor.java:510)
~[palo-fe.jar:?]
> at
org.apache.doris.mysql.nio.ReadListener.lambda$handleEvent$0(ReadListener.java:50)
~[palo-fe.jar:?]
> at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[?:?]
> at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[?:?]
> at java.lang.Thread.run(Thread.java:834) [?:?]
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