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https://issues.apache.org/jira/browse/IGNITE-14737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stanilovsky Evgeny updated IGNITE-14737:
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Issue Type: Bug (was: Improvement)
> Calcite. Equals predicate with multiple results from subqueries must fail.
> ----------------------------------------------------------------------------
>
> Key: IGNITE-14737
> URL: https://issues.apache.org/jira/browse/IGNITE-14737
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Reporter: Stanilovsky Evgeny
> Assignee: Stanilovsky Evgeny
> Priority: Major
> Labels: calcite
>
> Suppose table looks like :
> *products*
> ||name||cat_id||subcat_id||
> |n1|1|10|
> |n2|2|10|
> |n3|3|11|
> and request :
> {noformat}
> SELECT NAME FROM products WHERE CAT_ID = (SELECT CAT_ID FROM products WHERE
> SUBCAT_ID = 10)
> {noformat}
> for now it correctly executed and returns undefined results, proposal :
> return "ERROR: more than one row returned by a subquery used as an
> expression".
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