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From "M. Le Bihan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SIS-305) Shapefile reader should be able to use .SHX (shapefile index)
Date Sun, 22 Nov 2015 20:25:10 GMT
M. Le Bihan created SIS-305:
-------------------------------

             Summary: Shapefile reader should be able to use .SHX (shapefile index)
                 Key: SIS-305
                 URL: https://issues.apache.org/jira/browse/SIS-305
             Project: Spatial Information Systems
          Issue Type: Improvement
          Components: Shapefile
    Affects Versions: 0.7
            Reporter: M. Le Bihan
            Assignee: M. Le Bihan
            Priority: Minor


Being able to read .SHX (shapefile index) that often accompany a shapefile is useful for two
reasons :
1) Currently when the JDBC driver runs an SQL request with a condition it go through the Shapefile
and the DBase III file sequentially, from the start to the end. It costs a lot.
Reading the shapefile index open a way to :
- first read DBase III content for matching records,
- then do direct access to the shapefile features and return them.

2) If a shapefile is provided with a .SHX file and that we become able to INSERT or DELETE
records on it, we are expected to update this index file.




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