[jira] Assigned: (LUCENE-1712) Set default precisionStep for NumericField and NumericRangeFilter

["Michael McCandless (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-1712?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless reassigned LUCENE-1712:
------------------------------------------

    Assignee: Uwe Schindler

I'm assuming this one is yours Uwe!

> Set default precisionStep for NumericField and NumericRangeFilter
> -----------------------------------------------------------------
>
>                 Key: LUCENE-1712
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1712
>             Project: Lucene - Java
>          Issue Type: Improvement
>    Affects Versions: 2.9
>            Reporter: Michael McCandless
>            Assignee: Uwe Schindler
>            Priority: Minor
>             Fix For: 2.9
>
>
> This is a spinoff from LUCENE-1701.
> A user using Numeric* should not need to understand what's
> "under the hood" in order to do their indexing & searching.
> They should be able to simply:
> {code}
> doc.add(new NumericField("price", 15.50);
> {code}
> And have a decent default precisionStep selected for them.
> Actually, if we add ctors to NumericField for each of the supported
> types (so the above code works), we can set the default per-type.  I
> think we should do that?
> 4 for int and 6 for long was proposed as good defaults.
> The default need not be "perfect", as advanced users can always
> optimize their precisionStep, and for users experiencing slow
> RangeQuery performance, NumericRangeQuery with any of the defaults we
> are discussing will be much faster.

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