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https://issues.apache.org/jira/browse/CALCITE-2926?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Will Yu closed CALCITE-2926.
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Resolution: Invalid
> IN operator type validation failure
> -----------------------------------
>
> Key: CALCITE-2926
> URL: https://issues.apache.org/jira/browse/CALCITE-2926
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.18.0
> Reporter: Will Yu
> Priority: Major
>
> There are two columns in my table. Column A's type is VARCHAR while column
> B's type is VARCHAR ARRAY.
> When validating the SQL call `A IN B` the validation failed.
> The root cause seems to be in checkTypes functions in SqlInOperator.
> # Not sure whether UNORDERED comparator is a good candidate because IN
> operands should have order.
> # During being checked in the checker, `canConvertStringInCompare` will give
> a `false` when family is ARRAY and cause this failure.
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