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https://issues.apache.org/jira/browse/SOLR-2690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13227796#comment-13227796
]
Nguyen Kien Trung commented on SOLR-2690:
-----------------------------------------
hi David, I'm one of 100s people having this issue. I applied your patch on
3.3, and modified the {{SimpleFacetsTest}} to cover a simple timezone test
scenario. However, the tests for {{DateField}} and {{TrieDateField}} fail. Is
there an additional changes need to be made on SimpleFacets?
{code:lang=java|title=SimpleFacetsTest#indexDateFacets}
add_doc(i, "2012", f, "2007-07-30T07:07:07.070Z");
add_doc(i, "2015", f, "2007-07-30T23:07:07.070Z"); // one more record
{code}
{code:lang=java|title=SimpleFacetsTest#helpTestDateFacets}
...
final String jul4 = rangeMode ? "[.='1' ]" : "[.='2' ]";
assertQ("check counts for day of facet by day using UTC timezone",
req( "q", "*:*"
,"rows", "0"
,"facet", "true"
,p, f
,p+".start", "2007-07-30T00:00:00.000Z"
,p+".end", "2007-07-31T00:00:00.000Z"
,p+".gap", "+1DAY"
,"tz", "UTC"
)
,"*[count("+pre+"/int)="+(rangeMode ? 1 : 1)+"]"
,pre+"/int[@name='2007-07-30T00:00:00Z'][.='2']"
);
assertQ("check counts for day of facet by day using Asia/Singapore (UTC+8)
timezone",
req( "q", "*:*"
,"rows", "0"
,"facet", "true"
,p, f
,p+".start", "2007-07-30T00:00:00.000Z"
,p+".end", "2007-07-31T00:00:00.000Z"
,p+".gap", "+1DAY"
,"tz", "Asia/Singapore"
)
,"*[count("+pre+"/int)="+(rangeMode ? 1 : 1)+"]"
,pre+"/int[@name='2007-07-30T00:00:00Z'][.='1']"
); // fail here, still returns 2 instead of 1, already set
tests.timezone parameter to UTC to make sure data indexed in UTC
...
{code}
> Date Faceting or Range Faceting doesn't take timezone into account.
> -------------------------------------------------------------------
>
> Key: SOLR-2690
> URL: https://issues.apache.org/jira/browse/SOLR-2690
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 3.3
> Reporter: David Schlotfeldt
> Attachments: add-tz-parameter.patch, add-tz-parameter.patch,
> timezone-facet-component.tgz
>
> Original Estimate: 3h
> Remaining Estimate: 3h
>
> Timezone needs to be taken into account when doing date math. Currently it
> isn't. DateMathParser instances created are always being constructed with
> UTC. This is a huge issue when it comes to faceting. Depending on your
> timezone day-light-savings changes the length of a month. A facet gap of
> +1MONTH is different depending on the timezone and the time of the year.
> I believe the issue is very simple to fix. There are three places in the code
> DateMathParser is created. All three are configured with the timezone being
> UTC. If a user could specify the TimeZone to pass into DateMathParser this
> faceting issue would be resolved.
> Though it would be nice if we could always specify the timezone
> DateMathParser uses (since date math DOES depend on timezone) its really only
> essential that we can affect DateMathParser the SimpleFacets uses when
> dealing with the gap of the date facets.
> Another solution is to expand the syntax of the expressions DateMathParser
> understands. For example we could allow "(?timeZone=VALUE)" to be added
> anywhere within an expression. VALUE would be the id of the timezone. When
> DateMathParser reads this in sets the timezone on the Calendar it is using.
> Two examples:
> - "(?timeZone=America/Chicago)NOW/YEAR"
> - "(?timeZone=America/Chicago)+1MONTH"
> I would be more then happy to modify DateMathParser and provide a patch. I
> just need a committer to agree this needs to be resolved and a decision needs
> to be made on the syntax used
> Thanks!
> David
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