Hi! I have an issue with Solr 7.3.1 in the spell checking component:
java.lang.NullPointerException at org.apache.solr.search.CollapsingQParserPlugin$OrdFieldValueCollector.finish(CollapsingQParserPlugin.java:1021) at org.apache.solr.search.CollapsingQParserPlugin$OrdFieldValueCollector.finish(CollapsingQParserPlugin.java:1081) at org.apache.solr.search.SolrIndexSearcher.buildAndRunCollectorChain(SolrIndexSearcher.java:230) at org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:1602) at org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:1419) at org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:584) ... I have found an issue that addresses a similiar problem: https://issues.apache.org/jira/browse/SOLR-8807 The fix, which was introduced with this issue seems to miss our situation, though. The relevant part of the query is this: &fq={!tag=collapser}{!collapse field=productId sort='merchantOrder asc, price asc, id asc'} When I remove the local parameter {!tag=collapser} the collation works fine. Looking at the diff of the commit of the issue mentioned above, it seems that the "startsWith" could be the problem: + // Collate testing does not support the Collapse QParser (See SOLR-8807) + params.remove("expand"); + String[] filters = params.getParams(CommonParams.FQ); + if (filters != null) { + List<String> filtersToApply = new ArrayList<>(filters.length); + for (String fq : filters) { + if (!fq.startsWith("{!collapse")) { + filtersToApply.add(fq); + } + } + params.set("fq", filtersToApply.toArray(new String[filtersToApply.size()])); + } Can someone confirm this? I would open a bug ticket then. (Since the code is unchanged in the latest version.) Thanks, Stefan
