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From "M. Le Bihan (JIRA)" <j...@apache.org>
Subject [jira] [Work started] (SIS-305) Shapefile reader should be able to use .SHX (shapefile index)
Date Sat, 05 Dec 2015 18:01:11 GMT

     [ https://issues.apache.org/jira/browse/SIS-305?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Work on SIS-305 started by M. Le Bihan.
---------------------------------------
> 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
>              Labels: JDBC, Shapefile
>
> 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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