metamodel-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (METAMODEL-200) No syntax available in SQL representation of Query for "function approximation"
Date Sun, 25 Oct 2015 15:06:27 GMT

    [ https://issues.apache.org/jira/browse/METAMODEL-200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14973285#comment-14973285
] 

ASF GitHub Bot commented on METAMODEL-200:
------------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/metamodel/pull/62


> No syntax available in SQL representation of Query for "function approximation"
> -------------------------------------------------------------------------------
>
>                 Key: METAMODEL-200
>                 URL: https://issues.apache.org/jira/browse/METAMODEL-200
>             Project: Apache MetaModel
>          Issue Type: Bug
>            Reporter: Kasper Sørensen
>
> In MetaModel we have a flag that can be set on e.g. "COUNT( * )" which indicates if the
database may approximate the number instead of doing a consistent calculation. This is good
for optimization scenarios where you don't need an actual count, just an estimate (for progress
bars and similar stuff in UIs).
> But unfortunately we don't have any syntax support for this when dealing with String
queries. Shouldn't we add that?
> I could imagine a prefix or something like that, e.g. the "tilde / ~" symbol, like this:
> {code}
> SELECT ~COUNT(*) FROM table
> {code}



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

Mime
View raw message