How to handle Multiple MySQL Tables using DataImportHandler in Solr? - mysql

Question

Below mentioned query works perfectly fine while running it on phpmyadmin. I want to index these tables completely using solr and generate aggregated result using single query.
"select biblio.biblionumber as 'id', biblio.*, biblioitems.*, items.*, branches.* from biblio
inner join biblioitems ON (biblioitems.biblionumber=biblio.biblionumber)
inner join items ON (items.biblionumber=biblio.biblionumber)
inner join branches ON (branches.uid=items.uid);
I gave it a try on solr but could not get the desired result using this :
<document>
<entity name="id" query="select biblio.biblionumber as 'id', biblio.* from biblio ;">
<field column="BIBLIONUMBER" name="biblionumber" />
<field column="AUTHOR" name="author" />
<field column="TITLE" name="title" />
<field column="SERIESTITLE" name="seriestitle" />
<field column="COPYRIGHTDATE" name="copyrightdate" />
<field column="ABSTRACT" name="abstract" />
<entity name="id2" query="select biblioitems.biblioitemnumber as 'id2', biblioitems.* from biblioitems where biblionumber='${biblio.id}'">
<field name="BIBLIOITEMNUMBER" column="biblioitemnumber" />
<field name="ISBN" column="isbn" />
<field name="ISSN" column="issn" />
<field name="PUBLISHERCODE" column="publishercode" />
<field name="EDITIONSTATEMENT" column="editionstatement" />
<field name="PAGES" column="pages" />
<field name="PLACE" column="place" />
<field name="URL" column="url" />
</entity>
<entity name="id3" query="select items.uid as 'id3', items.* from items where biblionumber='${biblio.id}'">
<field name="ITEMNUMBER" column="itemnumber" />
<field name="PRICE" column="price" />
<field name="BARCODE" column="barcode" />
<field name="ENUMCHRON" column="enumchron" />
<field name="UID" column="uid" />
<field name="HOMEBRANCH" column="homebranch" />
<entity name="id4" query="select branches.uid AS 'id4', branches.* from branches where uid = '${items.id3}'">
<field name="UID" column="uid" />
<field name="BRANCHNAME" column="branchname" />
</entity>
</entity>
</entity>
</document>
The result is displayed upto abstract the moment join operation comes into play. I'm struggling with the query.
I request you all to help me with this query.
Thanks in Advance!!!