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https://issues.apache.org/jira/browse/SOLR-6203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15973156#comment-15973156
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Christine Poerschke commented on SOLR-6203:
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Hi Judith, thanks for merging master into working branch and resolving the
merge conflict. Sorry I'd gone rather silent here (and otherwise busy
elsewhere). Alright, let's see if we can wrap this ticket up here soon, git
branches will definitely help I think :-)
How about this:
* Let's switch to your
https://github.com/jitka18/lucene-solr/tree/jira/solr-6203 fork of the
apache:jira/solr-6203 branch as the definitive working branch.
** No need to attach further .patch files to this ticket here (we'll just do
one 'final' one with the final fix in the end).
** No further updates to the apache:jira/solr-6203 working branch (would it be
clearer to delete it right away now or only in the end?).
* Next step:
** Could you merge the latest master into the jitka18:jira/solr-6203 and open a
pull request into apache:master - this will help us 'see' what the changes
overall are.
** I will add another rename change to SOLR-10394 to help us tell apart actual
changes from mostly-rename changes.
** I will take a look at and run the tests.
> cast exception while searching with sort function and result grouping
> ---------------------------------------------------------------------
>
> Key: SOLR-6203
> URL: https://issues.apache.org/jira/browse/SOLR-6203
> Project: Solr
> Issue Type: Bug
> Components: search
> Affects Versions: 4.7, 4.8
> Reporter: Nate Dire
> Assignee: Christine Poerschke
> Attachments: README, SOLR-6203.patch, SOLR-6203.patch,
> SOLR-6203.patch, SOLR-6203.patch, SOLR-6203.patch, SOLR-6203.patch,
> SOLR-6203.patch, SOLR-6203.patch, SOLR-6203-unittest.patch,
> SOLR-6203-unittest.patch
>
>
> After upgrading from 4.5.1 to 4.7+, a schema including a {{"*"}} dynamic
> field as text gets a cast exception when using a sort function and result
> grouping.
> Repro (with example config):
> # Add {{"*"}} dynamic field as a {{TextField}}, eg:
> {noformat}
> <dynamicField name="*" type="text_general" multiValued="true" />
> {noformat}
> # Create sharded collection
> {noformat}
> curl
> 'http://localhost:8983/solr/admin/collections?action=CREATE&name=test&numShards=2&maxShardsPerNode=2'
> {noformat}
> # Add example docs (query must have some results)
> # Submit query which sorts on a function result and uses result grouping:
> {noformat}
> {
> "responseHeader": {
> "status": 500,
> "QTime": 50,
> "params": {
> "sort": "sqrt(popularity) desc",
> "indent": "true",
> "q": "*:*",
> "_": "1403709010008",
> "group.field": "manu",
> "group": "true",
> "wt": "json"
> }
> },
> "error": {
> "msg": "java.lang.Double cannot be cast to
> org.apache.lucene.util.BytesRef",
> "code": 500
> }
> }
> {noformat}
> Source exception from log:
> {noformat}
> ERROR - 2014-06-25 08:10:10.055; org.apache.solr.common.SolrException;
> java.lang.ClassCastException: java.lang.Double cannot be cast to
> org.apache.lucene.util.BytesRef
> at
> org.apache.solr.schema.FieldType.marshalStringSortValue(FieldType.java:981)
> at org.apache.solr.schema.TextField.marshalSortValue(TextField.java:176)
> at
> org.apache.solr.search.grouping.distributed.shardresultserializer.SearchGroupsResultTransformer.serializeSearchGroup(SearchGroupsResultTransformer.java:125)
> at
> org.apache.solr.search.grouping.distributed.shardresultserializer.SearchGroupsResultTransformer.transform(SearchGroupsResultTransformer.java:65)
> at
> org.apache.solr.search.grouping.distributed.shardresultserializer.SearchGroupsResultTransformer.transform(SearchGroupsResultTransformer.java:43)
> at
> org.apache.solr.search.grouping.CommandHandler.processResult(CommandHandler.java:193)
> at
> org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:340)
> at
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:218)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
> ...
> {noformat}
> It looks like {{serializeSearchGroup}} is matching the sort expression as the
> {{"*"}} dynamic field, which is a TextField in the repro.
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