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https://issues.apache.org/jira/browse/CALCITE-7673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18102301#comment-18102301
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Yu Xu commented on CALCITE-7673:
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Thanks for the suggestion! [~julianhyde] I will further refine it based on
the suggestions.
> Add support for the LIKE operator to the MongoDB adapter
> --------------------------------------------------------
>
> Key: CALCITE-7673
> URL: https://issues.apache.org/jira/browse/CALCITE-7673
> Project: Calcite
> Issue Type: Improvement
> Components: mongodb-adapter
> Affects Versions: 1.42.0
> Reporter: Yu Xu
> Assignee: Yu Xu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.43.0
>
>
> Currently MongoDB Adapter not support LIKE operator.
> sql:
> {code:java}
> select state, city from zips where state like 'A%' order by state;{code}
> would error out:
> {code:java}
> java.lang.AssertionError: cannot translate LIKE(CAST(ITEM($0,
> 'city')):VARCHAR(20), 'A%') {code}
> However, MongoDB can achieve SQL-like `LIKE` semantics using `$regex`. we can
> refer：[https://www.mongodb.com/docs/manual/reference/operator/query/regex/#mongodb-query-op.-regex]
>
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