Question on SOLR join query

I am facing a performance problem and could narrow it down to a join query that we are using. The join is on a unique field. We have a person profile stored in RDB in a relational way. Like person name table , address table etc. SOLR indexes are build using this RDB data,Each children is stored

Not getting appropriate spell suggestions

Here is link to solrconfig.xml and managed-schema . I have document with following value in suggestions (field used for spell check), same information as