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https://issues.apache.org/jira/browse/CALCITE-4505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17352789#comment-17352789
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Stamatis Zampetakis commented on CALCITE-4505:
----------------------------------------------
Removing fix version (1.27.0) since nobody is actively working on this.
> 'IN' as argument to aggregate function causes NullPointerException in
> "SqlToRelConverter" such as 'count(if(id in (1), 1, null))'
> ---------------------------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-4505
> URL: https://issues.apache.org/jira/browse/CALCITE-4505
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.26.0
> Environment: jvm: open-jdk8
> Reporter: yanjing.wang
> Priority: Major
> Fix For: 1.27.0
>
>
> String sql = "select id, name, count(if(id in (1) ,1,null)) from test.depts b
> where ds > 0 group by id,name";
> ...
> sqlToRelConverter.convertQuery(validatedSqlNode, false, true)
>
> it raise npe exception.
> Caused by: java.lang.NullPointerException at
> java.util.Objects.requireNonNull(Objects.java:203) at
> org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.convertExpression(SqlToRelConverter.java:4914)
> at
> org.apache.calcite.sql2rel.StandardConvertletTable.convertExpressionList(StandardConvertletTable.java:839)
> at
> org.apache.calcite.sql2rel.StandardConvertletTable.convertFunction(StandardConvertletTable.java:659)
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