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https://issues.apache.org/jira/browse/CALCITE-4844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17426726#comment-17426726
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Julian Hyde commented on CALCITE-4844:
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Do you understand the purpose of the sub-query threshold?
> when the value of sub-query threshold smaller than IN list size the In list
> include columns return wrong result.
> ----------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-4844
> URL: https://issues.apache.org/jira/browse/CALCITE-4844
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.27.0
> Reporter: duan xiong
> Assignee: duan xiong
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> According CALCITE-1155[Support columns for IN list]. We support
> {code:java}
> 'x in (a, b, c)' {code}
> by expands to
> {code:java}
> 'x = a or x = b or x = c'{code}
> In Calcite. Only the list size smaller than the value of the sub-query
> threshold can convert. We should ignore the the value of the sub-query
> threshold to convert this.
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