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Posted to issues@calcite.apache.org by "Julian Hyde (Jira)" <ji...@apache.org> on 2023/06/13 23:14:00 UTC
[jira] [Commented] (CALCITE-5776) Support for alternative Interval syntax
[ https://issues.apache.org/jira/browse/CALCITE-5776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17732281#comment-17732281 ]
Julian Hyde commented on CALCITE-5776:
--------------------------------------
Which DBMS supports this syntax? I know that:
* {{INTERVAL '7' DAY}} is standard;
* since CALCITE-3383 we allow {{INTERVAL '7' DAYS}}; and
* for BigQuery (CALCITE-4134) we allow {{INTERVAL (3 + 4) DAY}}.
> Support for alternative Interval syntax
> ---------------------------------------
>
> Key: CALCITE-5776
> URL: https://issues.apache.org/jira/browse/CALCITE-5776
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Guillaume Massé
> Priority: Minor
>
> {code:java}
> spark.sql("select (CURRENT_DATE - INTERVAL '7 DAYS') ").show
> +-----------------------------------------------------------------------+
> |date_add(current_date(), (- extractansiintervaldays(INTERVAL '7' DAY)))|
> +-----------------------------------------------------------------------+
> | 2023-06-06|
> +-----------------------------------------------------------------------+ {code}
> currently the parser does not allows:
> {code:java}
> INTERVAL '7 DAYS' {code}
> it only accepts:
> {code:java}
> INTERVAL '7' DAYS {code}
>
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