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https://issues.apache.org/jira/browse/SOLR-1229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12722473#action_12722473
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Noble Paul commented on SOLR-1229:
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bq.If the pk attribute is not used, then let's just remove it altogether.....
hi Erik. you got me wrong. Let me try to explain. There are two potential
names for a field one is the 'column' and other is the 'name'
'column' is the name of the field in the source or in DIH. The 'name' is the
name of that field in Solr. DIH uses the 'name' attribute only when it writes
the field to Solr.
The relation ship between 'pk' attribute and the '<uniqueKey>' in Solr is same
. The distinction is important . Otherwise the user will be forced to use the
same name in both the db and solr (assuming no transformations are done).
> deletedPkQuery feature does not work when pk and uniqueKey field do not have
> the same value
> -------------------------------------------------------------------------------------------
>
> Key: SOLR-1229
> URL: https://issues.apache.org/jira/browse/SOLR-1229
> Project: Solr
> Issue Type: Bug
> Components: contrib - DataImportHandler
> Affects Versions: 1.4
> Reporter: Erik Hatcher
> Fix For: 1.4
>
> Attachments: SOLR-1229.patch, SOLR-1229.patch, SOLR-1229.patch,
> SOLR-1229.patch
>
>
> Problem doing a delta-import such that records marked as "deleted" in the
> database are removed from Solr using deletedPkQuery.
> Here's a config I'm using against a mocked test database:
> {code:xml}
> <dataConfig>
> <dataSource driver="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost/db"/>
> <document name="tests">
> <entity name="test"
> pk="board_id"
> transformer="TemplateTransformer"
> deletedPkQuery="select board_id from boards where deleted = 'Y'"
> query="select * from boards where deleted = 'N'"
> deltaImportQuery="select * from boards where deleted = 'N'"
> deltaQuery="select * from boards where deleted = 'N'"
> preImportDeleteQuery="datasource:board">
> <field column="id" template="board-${test.board_id}"/>
> <field column="datasource" template="board"/>
> <field column="title" />
> </entity>
> </document>
> </dataConfig>
> {code}
> Note that the uniqueKey in Solr is the "id" field. And its value is a
> template board-<PK>.
> I noticed the javadoc comments in DocBuilder#collectDelta it says "Note: In
> our definition, unique key of Solr document is the primary key of the top
> level entity". This of course isn't really an appropriate assumption.
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