[jira] [Commented] (CALCITE-1178) Allow SqlBetweenOperator to compare DATE and TIMESTAMP

["Julian Hyde (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-1178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15217414#comment-15217414 ] 

Julian Hyde commented on CALCITE-1178:
--------------------------------------

If we do this, we should also allow other comparisons, e.g. {{aDate < aTimestamp}}.

Note that we already allow {{aDate < aString}}, and the string is implicitly converted to a data. This feature should work the same way: the date should be converted to a timestamp, or the timestamp to a date. Which should it be? What do other databases do?

> Allow SqlBetweenOperator to compare DATE and TIMESTAMP
> ------------------------------------------------------
>
>                 Key: CALCITE-1178
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1178
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>            Reporter: Sean Hsuan-Yi Chu
>            Assignee: Sean Hsuan-Yi Chu
>
> An expression such as 
> {code}
> date '1999-03-02' between date '1999-03-01' and timestamp '1999-03-03 00:00:00.0'
> {code}
> will incur SqlValidatorException since SqlBetweenOperator does not allow DATE and TIMESTAMP comparison. In terms of usability, it would be great if this type of comparison is allowed in Calcite.  



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)