[jira] [Updated] (METAMODEL-200) No syntax available in SQL representation of Query for "function approximation"

["Kasper Sørensen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/METAMODEL-200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kasper Sørensen updated METAMODEL-200:
--------------------------------------
    Summary: No syntax available in SQL representation of Query for "function approximation"  (was: No syntax available in SQL representation of Query for "functiona approximation")

> 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}



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