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From "Etienne (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-463) Sorting does not work correcly on "String Date"
Date Fri, 25 Nov 2005 17:56:56 GMT
    [ http://issues.apache.org/jira/browse/LUCENE-463?page=comments#action_12358519 ] 

Etienne commented on LUCENE-463:
--------------------------------

Hi, 

the way I do the sort is something like this :

String sortingField = "date";
boolean sorder = (vo.getSorder().equals(LuceneConstants.ASCENDING))?true:false;
sorting = new Sort(sortingField, sorder); // where sorting field == "dateToBeSort" 
Hits h = s.search(finalQuery, sorting);

And the field is stored like this in the Index:

public static void addFieldDate(Document luceneDoc, Date date, String field){
		if(date!=null){
			SimpleDateFormat formatter = new SimpleDateFormat(MetaDataConstants.DATE_FORMAT);
			String  dateStr = formatter.format(date);
			luceneDoc.add(Field.Keyword(field,dateStr)); // where field is "dateToBeSort" 

		}	
	}
			
So it seems it is already a String that I stored?

Etienne.

> Sorting does not work correcly on "String Date"
> -----------------------------------------------
>
>          Key: LUCENE-463
>          URL: http://issues.apache.org/jira/browse/LUCENE-463
>      Project: Lucene - Java
>         Type: Bug
>  Environment: Java Windows XP, JRE 1.3.1
>     Reporter: Etienne
>     Priority: Minor

>
> I am doing a simple query with a sort on a date field already put on a string format
(YYYYmmDDHHMMSS). I am presenting 10 results per pages. The results I have is not correctly
sort. On a page "4 october" is before "5 october", on another page I got the same kind of
error.
> These are logs of the sorting I get:
> 20051006102501 DATE: 06 oct. 2005
> 20051004130501 DATE: 04 oct. 2005 <-- PROBLEM!
> 20051005120200 DATE: 05 oct. 2005
> 20050928094805 DATE: 28 sept. 2005
> 20050928114901 DATE: 28 sept. 2005
> 20050928114901 DATE: 28 sept. 2005
> 20050928101901 DATE: 28 sept. 2005
> 20050928142601 DATE: 28 sept. 2005
> 20050928142601 DATE: 28 sept. 2005
> 20050929094100 DATE: 29 sept. 2005 <-- PROBLEM!
> 20050928132931 DATE: 28 sept. 2005
> 20050929090002 DATE: 29 sept. 2005 <-- PROBLEM!
> 20050927203403 DATE: 27 sept. 2005
> 20050927203402 DATE: 27 sept. 2005
> 20050927131901 DATE: 27 sept. 2005
> 20050927131901 DATE: 27 sept. 2005
> 20050927132501 DATE: 27 sept. 2005
> 20050927132500 DATE: 27 sept. 2005
> 20050927133101 DATE: 27 sept. 2005
> 20050927133100 DATE: 27 sept. 2005
> 20050926115001 DATE: 26 sept. 2005
> 20050927112301 DATE: 27 sept. 2005
> 20050926091200 DATE: 26 sept. 2005 <-- PROBLEM!
> 20050927085701 DATE: 27 sept. 2005
> 20050923111558 DATE: 23 sept. 2005
> 20050923103700 DATE: 23 sept. 2005
> 20050923144300 DATE: 23 sept. 2005
> 20050922102200 DATE: 22 sept. 2005
> 20050922082701 DATE: 22 sept. 2005
> 20050923085601 DATE: 23 sept. 2005 <-- PROBLEM!
> 20050815102204 DATE: 15 august 2005
> 20050815102201 DATE: 15 august 2005
> 20050816102200 DATE: 16 august 2005  <-- PROBLEM!
> 20050815110400 DATE: 15 august 2005 
> 20050816124500 DATE: 16 august 2005 <-- PROBLEM!
> 20050812163334 DATE: 12 august 2005
> 20050812163331 DATE: 12 august 2005
> 20050812161840 DATE: 12 august 2005
> 20050812161935 DATE: 12 août 2005
> 20050812113442 DATE: 12 août 2005

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