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<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">Calling datasource.ReleaseResultSet(layer) did the trick.<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Even Rouault [mailto:even.rouault@spatialys.com]
<br>
<b>Sent:</b> Tuesday, March 13, 2018 6:12 PM<br>
<b>To:</b> gdal-dev@lists.osgeo.org<br>
<b>Cc:</b> Stephan Braeuer <Stephan.Braeuer@bentley.com><br>
<b>Subject:</b> Re: [gdal-dev] Shape datafile locked<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">On mardi 13 mars 2018 10:01:48 CET Stephan Braeuer wrote:<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> I am using GDAL with c# and run into a problem deleting datasource files<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> after running ExecuteSQL.<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> The key here is that a datasource is opened implicitly via the JOIN<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> statement. An implicitly opened shapefile (here node3109.shp) remains locked<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> after the datasource has been closed.<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> Opening the file upfront does not help either. Here is the c# code snippet:<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> using (DataSource datasource = OSGeo.OGR.Ogr.Open(pipeFile, 0))<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> {<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> string statement =<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> "SELECT p.id, n.grnd_lvl FROM pipe3109 p " +<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> "LEFT JOIN 'node3109.shp'.node3109 n ON n.node_id = p.ds_node_id";<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> using (Layer layer = datasource.ExecuteSQL(statement, null,<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> string.Empty))<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> {<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-paragraph-type:empty;-qt-block-indent:0">
<span style="font-size:9.0pt;font-family:"Sans Serif",serif"> <o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">You probably need an explicit<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">datasource.ReleaseResultSet(layer)<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">here. As I don't think layers resulting from ExecuteSQL() are garbage collected by the C# bindings (they are not by
other binding languages)<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-paragraph-type:empty;-qt-block-indent:0">
<span style="font-size:9.0pt;font-family:"Sans Serif",serif"> <o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> }<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> }<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> File.Delete(pipeFile); //ok<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> File.Delete(nodeFile); //throws<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> Anyone knowing a solution to avoid the lock?<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> Thanks<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> Stephan<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> --<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> Sent from:
<a href="http://osgeo-org.1560.x6.nabble.com/GDAL-Dev-f3742093.html">http://osgeo-org.1560.x6.nabble.com/GDAL-Dev-f3742093.html</a><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> _______________________________________________<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">> gdal-dev mailing list<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<a href="mailto:gdal-dev@lists.osgeo.org">gdal-dev@lists.osgeo.org</a><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">>
<a href="https://lists.osgeo.org/mailman/listinfo/gdal-dev">https://lists.osgeo.org/mailman/listinfo/gdal-dev</a><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-paragraph-type:empty;-qt-block-indent:0">
<span style="font-size:9.0pt;font-family:"Sans Serif",serif"> <o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-paragraph-type:empty;-qt-block-indent:0">
<span style="font-size:9.0pt;font-family:"Sans Serif",serif"> <o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">--
<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif">Spatialys - Geospatial professional services<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;-qt-block-indent:0;-qt-user-state:0"><span style="font-size:9.0pt;font-family:"Sans Serif",serif"><a href="http://www.spatialys.com">http://www.spatialys.com</a><o:p></o:p></span></p>
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