john-bodley opened a new issue #7207: Druid SQL filtered aggregate fails with WHERE clause containing three or more conditions URL: https://github.com/apache/incubator-druid/issues/7207 ### Affected Version 0.12.2.1. ### Description When running a query containing a filtered aggregate where the `WHERE` clause contains three (or more) conditions, i.e., ``` SELECT SUM(x) FILTER (WHERE a AND b AND c) ``` it fails with the following (sanitized) error, ``` Unknown exception (java.lang.RuntimeException): Error while applying rule DruidQueryRule:SELECT_PROJECT, args [rel#19421869:LogicalProject.NONE.[](input=rel#19421867:Subset#6.NONE.[],__timestamp=...] ``` Note if you remove any one of the conditions in the `WHERE` clause the query successfully executes.
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