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https://issues.apache.org/jira/browse/CALCITE-5066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17514057#comment-17514057
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Xurenhe commented on CALCITE-5066:
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[~aochagavia]
This sql just like mysql, which querying system parameter.
But, I want to know your opinion about parsing the syntax of "@@version".
SqlIdentifier? SqlCall? or another.
> Support variables with “@" and “@@" prefixes (like MySQL)
> ---------------------------------------------------------
>
> Key: CALCITE-5066
> URL: https://issues.apache.org/jira/browse/CALCITE-5066
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Adolfo Ochagavía
> Priority: Minor
>
> For context, see the [last email of the
> thread|https://lists.apache.org/thread/q5b0135rptn59b9b2fkglw65fs1rsb62] (for
> some reason, the link to the thread itself does not seem to show all emails
> in the conversation).
> cc [~julianhyde] [~greenlion]
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