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https://issues.apache.org/jira/browse/IMPALA-14168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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weihua zhang closed IMPALA-14168.
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Resolution: Fixed
> Calcite Planner: Could not find the Impala function for COUNT/MIN
> -----------------------------------------------------------------
>
> Key: IMPALA-14168
> URL: https://issues.apache.org/jira/browse/IMPALA-14168
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: weihua zhang
> Priority: Major
>
> {code:sql}
> CREATE TABLE test_varchar_col(varchar_col VARCHAR(20));
> INSERT INTO test_varchar_col values(CAST('grape' AS VARCHAR(20)));
> set use_calcite_planner=1;
> SELECT COUNT(DISTINCT varchar_col) FROM test_varchar_col;
> 2025-06-18 07:40:21 [Exception] ERROR: Query
> 7d4d22d4e91e20ea:cbf92e3400000000 failed:
> IllegalStateException: Could not find the Impala function for COUNT
> set use_calcite_planner=0;
> SELECT COUNT(DISTINCT varchar_col) FROM test_varchar_col;
> +-----------------------------+
> | count(distinct varchar_col) |
> +-----------------------------+
> | 1 |
> +-----------------------------+
> {code}
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