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From Terence Lai <>
Subject Joining a common field from 2 separate index directories/files?
Date Thu, 29 Jul 2004 15:45:10 GMT

Does anyone know whether Lucene can perform a search on 2 separate index files with joining
a common field? I am trying to similate the database table join relationship.

As an illustration, let's say we have the following 2 different indice:

Index 1 (Course Information)
Field: course_id
Field: course_title
Field: course_description

Index 2 (Registered Students)
Field: course_id
Field: student_id
Field: first_name
Field: last_name

I would like to perform a keyword search on the course_description and return a list of students
who registered for the course. Although I can have perform multiple searches to achieve the
same results, it could be very expensive as the index becomes more complicated.


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