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    <p>Hi Simon,</p>
    <p>the GDB is fine. GDAL struggles because it tries to identify the
      CRS definition from the GDB (
'PROJCS["GK_31",GEOGCS["GCS_MGI",DATUM["D_MGI",SPHEROID["Bessel_1841",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",-5000000.0],PARAMETER["Central_Meridian",13.3333333333333],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]'
      ) with a known one (EPSG, ESRI) in PROJ CRS database. But there is
      no match for the GK_31 name so it has to go to slower methods.</p>
    <p>Do you know how that CRS was attributed to the layers ? (through
      some choice in a list of predefined CRS ? no idea how Arc stuff
      works) <br>
    </p>
    <p>I believe this CRS should be identified as EPSG:31255, which in
      the current ESRI CRS database, is called MGI_Austria_GK_Central:</p>
    <p>PROJCS["MGI_Austria_GK_Central",GEOGCS["GCS_MGI",DATUM["D_MGI",SPHEROID["Bessel_1841",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",-5000000.0],PARAMETER["Central_Meridian",13.3333333333333],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]<br>
    </p>
    <p>Which version of ArcMap / ArcGIS was used to produce this GDB ?</p>
    <p>Even<br>
    </p>
    <div class="moz-cite-prefix">Le 27/01/2023 à 14:34, Simon Gröchenig
      a écrit :<br>
    </div>
    <blockquote type="cite"
cite="mid:DU0P251MB0673ACED0AED8FC40009F3338ECC9@DU0P251MB0673.EURP251.PROD.OUTLOOK.COM">
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        <p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi
            Even,<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:EN-US">great,
            thank you!<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:EN-US">Is
            the GDB itself fine? Or is there something I can do to fix
            the database?<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:EN-US">Simon<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
        <div>
          <div style="border:none;border-top:solid #E1E1E1
            1.0pt;padding:3.0pt 0cm 0cm 0cm">
            <p class="MsoNormal"><b><span lang="DE">Von:</span></b><span
                lang="DE"> Even Rouault
                <a class="moz-txt-link-rfc2396E" href="mailto:even.rouault@spatialys.com"><even.rouault@spatialys.com></a>
                <br>
                <b>Gesendet:</b> Freitag, 27. Jänner 2023 13:38<br>
                <b>An:</b> Simon Gröchenig <a class="moz-txt-link-rfc2396E" href="mailto:groechenig@zt-gis.at"><groechenig@zt-gis.at></a>;
                <a class="moz-txt-link-abbreviated" href="mailto:gdal-dev@lists.osgeo.org">gdal-dev@lists.osgeo.org</a><br>
                <b>Betreff:</b> Re: [gdal-dev] Bad GDB performance<o:p></o:p></span></p>
          </div>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p>Hi Simon,<o:p></o:p></p>
        <p>fix queued in <a
            href="https://github.com/OSGeo/gdal/pull/7131"
            moz-do-not-send="true" class="moz-txt-link-freetext">https://github.com/OSGeo/gdal/pull/7131</a><o:p></o:p></p>
        <p>Even<o:p></o:p></p>
        <div>
          <p class="MsoNormal">Le 27/01/2023 à 06:49, Simon Gröchenig a
            écrit :<o:p></o:p></p>
        </div>
        <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
          <div>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi
              all,<o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I
              am struggling with a bad performance at reading
              FileGeodatabases in QGIS. I hope, this is the place where
              I can find someone to help me find the bottleneck.<o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I
              have uploaded a sample dataset here:
              <a
href="https://mega.nz/file/nnxVULyC#QcuGJEHedayIC7b1i14J0X8OBExVfhcb55DnnVtGzuc"
                moz-do-not-send="true" class="moz-txt-link-freetext">
https://mega.nz/file/nnxVULyC#QcuGJEHedayIC7b1i14J0X8OBExVfhcb55DnnVtGzuc</a><o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Loading
              a QGIS project containing this GDB (layer Kataster/GST)
              results in a layer loading time of 5+ seconds according to
              the QGIS Debugging/Development Tools. I expect less than 1
              second to load this dataset.<o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I
              appreciate any help to find if it is a GDAL or a dataset
              issue?<o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Simon<o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">------------------------------------------------<o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Vermessungskanzlei
              Neumayr<o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Simon
              Gröchenig - Geoinformation<o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><img
                style="width:1.6666in;height:.25in" id="Bild_x0020_1"
                src="cid:part1.EtMBoObg.HrtsmUF1@spatialys.com" class=""
                width="160" height="24" border="0"><o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Albin
              Egger-Str.
              <span lang="DE">10</span><o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
                lang="DE">9900 Lienz</span><o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
                lang="DE">Tel: +43 4852-68568-31</span><o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
                lang="EN-US">Email:
                <a href="mailto:groechenig@zt-gis.at"
                  moz-do-not-send="true" class="moz-txt-link-freetext">groechenig@zt-gis.at</a></span><o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
                lang="EN-US">Web:
                <a href="http://www.zt-gis.at/" moz-do-not-send="true"
                  class="moz-txt-link-freetext">http://www.zt-gis.at/</a></span><o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
          </div>
          <p class="MsoNormal"><br>
            <br>
            <o:p></o:p></p>
          <pre>_______________________________________________<o:p></o:p></pre>
          <pre>gdal-dev mailing list<o:p></o:p></pre>
          <pre><a href="mailto:gdal-dev@lists.osgeo.org" moz-do-not-send="true" class="moz-txt-link-freetext">gdal-dev@lists.osgeo.org</a><o:p></o:p></pre>
          <pre><a href="https://lists.osgeo.org/mailman/listinfo/gdal-dev" moz-do-not-send="true" class="moz-txt-link-freetext">https://lists.osgeo.org/mailman/listinfo/gdal-dev</a><o:p></o:p></pre>
        </blockquote>
        <pre>-- <o:p></o:p></pre>
        <pre><a href="http://www.spatialys.com" moz-do-not-send="true" class="moz-txt-link-freetext">http://www.spatialys.com</a><o:p></o:p></pre>
        <pre>My software is free, but my time generally not.<o:p></o:p></pre>
      </div>
    </blockquote>
    <pre class="moz-signature" cols="72">-- 
<a class="moz-txt-link-freetext" href="http://www.spatialys.com">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
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