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Peter Karich commented on SOLR-236: ----------------------------------- Trying the latest patch from 1th Feb 2010 compiles against solr-2010-02-13 from nightly build but does not work. If I query http://searchdev05:15100/cs-bidcs/select?q=*:*&collapse.field=myfield it fails with: {noformat} HTTP Status 500 - null java.lang.NullPointerException at org.apache.solr.schema.FieldType.toExternal(FieldType.java:329) at org.apache.solr.schema.FieldType.storedToReadable(FieldType.java:348) at org.apache.solr.search.fieldcollapse.collector.AbstractCollapseCollector.getCollapseGroupResult(AbstractCollapseCollector.java:58) at org.apache.solr.search.fieldcollapse.collector.DocumentGroupCountCollapseCollectorFactory$DocumentCountCollapseCollector.getResult(DocumentGroupCountCollapseCollectorFactory.ja va:84) at org.apache.solr.search.fieldcollapse.AbstractDocumentCollapser.getCollapseInfo(AbstractDocumentCollapser.java:193) at org.apache.solr.handler.component.CollapseComponent.doProcess(CollapseComponent.java:192) at org.apache.solr.handler.component.CollapseComponent.process(CollapseComponent.java:127) at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:195) at ... {noformat} I only need the OutOfMemory problem solved ... :-( > Field collapsing > ---------------- > > Key: SOLR-236 > URL: https://issues.apache.org/jira/browse/SOLR-236 > Project: Solr > Issue Type: New Feature > Components: search > Affects Versions: 1.3 > Reporter: Emmanuel Keller > Assignee: Shalin Shekhar Mangar > Fix For: 1.5 > > Attachments: collapsing-patch-to-1.3.0-dieter.patch, > collapsing-patch-to-1.3.0-ivan.patch, collapsing-patch-to-1.3.0-ivan_2.patch, > collapsing-patch-to-1.3.0-ivan_3.patch, field-collapse-3.patch, > field-collapse-4-with-solrj.patch, field-collapse-5.patch, > field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, > field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, > field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, > field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, > field-collapse-5.patch, field-collapse-5.patch, > field-collapse-solr-236-2.patch, field-collapse-solr-236.patch, > field-collapsing-extended-592129.patch, field_collapsing_1.1.0.patch, > field_collapsing_1.3.patch, field_collapsing_dsteigerwald.diff, > field_collapsing_dsteigerwald.diff, field_collapsing_dsteigerwald.diff, > quasidistributed.additional.patch, SOLR-236-FieldCollapsing.patch, > SOLR-236-FieldCollapsing.patch, SOLR-236-FieldCollapsing.patch, > SOLR-236.patch, SOLR-236.patch, SOLR-236.patch, SOLR-236.patch, > SOLR-236.patch, SOLR-236.patch, SOLR-236.patch, solr-236.patch, > SOLR-236_collapsing.patch, SOLR-236_collapsing.patch > > > This patch include a new feature called "Field collapsing". > "Used in order to collapse a group of results with similar value for a given > field to a single entry in the result set. Site collapsing is a special case > of this, where all results for a given web site is collapsed into one or two > entries in the result set, typically with an associated "more documents from > this site" link. See also Duplicate detection." > http://www.fastsearch.com/glossary.aspx?m=48&amid=299 > The implementation add 3 new query parameters (SolrParams): > "collapse.field" to choose the field used to group results > "collapse.type" normal (default value) or adjacent > "collapse.max" to select how many continuous results are allowed before > collapsing > TODO (in progress): > - More documentation (on source code) > - Test cases > Two patches: > - "field_collapsing.patch" for current development version > - "field_collapsing_1.1.0.patch" for Solr-1.1.0 > P.S.: Feedback and misspelling correction are welcome ;-) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.