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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Thank you Marcin!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I’m not sure if I understand you correct. Here is what I tried to do to get the outer most polygons:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Select * from "org" Where "fid" IN(<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">select distinct on (t1.fid) t1.fid<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">from "org" t1,"org" t2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">where ST_Area(t1.the_geom)>ST_Area(t2.the_geom)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">and ST_intersects(t1.the_geom,t2.the_geom)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">order by t1.fid,ST_Area(t2.the_geom) desc)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">AND "fid" NOT IN (<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">select distinct on (t1.fid) t2.fid<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">from "org" t1,"org" t2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">where ST_Area(t1.the_geom)>ST_Area(t2.the_geom)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">and ST_Intersects(t1.the_geom,t2.the_geom)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">order by t1.fid,ST_Area(t2.the_geom) desc);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">I’m still getting polygons inside other polygons.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Kind regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Paul<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Från:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> postgis-users <postgis-users-bounces@lists.osgeo.org>
<b>För </b>Marcin Mionskowski<br>
<b>Skickat:</b> den 30 november 2021 08:40<br>
<b>Till:</b> PostGIS Users Discussion <postgis-users@lists.osgeo.org><br>
<b>Ämne:</b> Re: [postgis-users] polygons inside polygon<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p><strong><span style="background:yellow">Klicka bara på länkar och öppna bilagor om du litar på avsändaren och vet att innehållet är säkert.</span></strong><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">Assuming (1) your problem is not trivial (you have more then one "outer most" polygon) and (2) there can be only one type of spatial relationship (polygons are properly contained
<a href="https://url11b.mailanyone.net/v1/?m=1mrxkX-0008NY-3a&i=57e1b682&c=E3fbWP_UxOp_aLqY_yLoWpoHnd9en_osfYJj-MVUi5KueBYHM1BjtHCJY7dzm-LB011qRSoveVUqU8Wbo-SQYSOYr9IMVYP063lEVQCr3G9ErfMMDLx0JWLLcyDsdbz4OsKdCpzFuBZU-g6Zf2gdwauTuWm-WmCCd-yXe9BTojKOCWOHXliBKmmUzJm2IMYt21G3fa06qgsJNMVB57og9hfef8SNtdDMCfyM41WFZcL6sAWT7ulje7X4_yE-ywIBR2t6-OHWw7iVq5THHQ_FPz6JAbbD-P0i4FQ6Ze6X30U">
https://postgis.net/docs/ST_ContainsProperly.html</a>) below is my take on this:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">select distinct on (<a href="https://url11b.mailanyone.net/v1/?m=1mrxkX-0008NY-3a&i=57e1b682&c=9KJuH3f7Mex6ks3lu5cPQvny5O6XFhyh-eH6svguvEFAWIQVxt2r_IF0pHeMBwTmQ0XE2xxmCMWnaDbfaMp5XAI5b_Dcd0CClUb5RGp_7jG34xScneDpX0vYGQ4vngdzDwWvGm-5Vrd9D1J_a38Rof5Lup9vwpMo_mGHYNGYu4f1wTbn36eA3P8CNM6_0ioVin4dzKvW5LcIMv9Lun1VjfK4qpwRVaVWuelYCEa3WiGmNGu1zEEv9fA7t7zcNFT0">t1.id</a>)
<a href="https://url11b.mailanyone.net/v1/?m=1mrxkX-0008NY-3a&i=57e1b682&c=9KJuH3f7Mex6ks3lu5cPQvny5O6XFhyh-eH6svguvEFAWIQVxt2r_IF0pHeMBwTmQ0XE2xxmCMWnaDbfaMp5XAI5b_Dcd0CClUb5RGp_7jG34xScneDpX0vYGQ4vngdzDwWvGm-5Vrd9D1J_a38Rof5Lup9vwpMo_mGHYNGYu4f1wTbn36eA3P8CNM6_0ioVin4dzKvW5LcIMv9Lun1VjfK4qpwRVaVWuelYCEa3WiGmNGu1zEEv9fA7t7zcNFT0">
t1.id</a>,<a href="https://url11b.mailanyone.net/v1/?m=1mrxkX-0008NY-3a&i=57e1b682&c=MB1btGDh1LRWWz9_qH-7fMRyiv5SylMmhNclzuXCnly7_WjBFSzNNi8uoxskAeJ4w4vgf__otNnIlUBwzIcTXhXbUpsTFsuilzyfmYd9zwlz05eB_sxpFqejtXwlOFEeYlEQLMRezJUhez4-Az3YSqWptDxKMQo3xICyLgQ_J7X-Y60pOXOjXiF2bxqaDL7qbXenH7LOd0rsTK8ovDtTM0OQ4EBcMuXDxIvRB7k1Wb5YS5ejXpy-7iOFHBuUUIEB">t2.id</a><br>
from t t1,t t2<br>
where ST_Area(t1.geom)>ST_Area(t2.geom)<br>
and ST_Intersects(t1.geom,t2.geom)<br>
order by <a href="https://url11b.mailanyone.net/v1/?m=1mrxkX-0008NY-3a&i=57e1b682&c=9KJuH3f7Mex6ks3lu5cPQvny5O6XFhyh-eH6svguvEFAWIQVxt2r_IF0pHeMBwTmQ0XE2xxmCMWnaDbfaMp5XAI5b_Dcd0CClUb5RGp_7jG34xScneDpX0vYGQ4vngdzDwWvGm-5Vrd9D1J_a38Rof5Lup9vwpMo_mGHYNGYu4f1wTbn36eA3P8CNM6_0ioVin4dzKvW5LcIMv9Lun1VjfK4qpwRVaVWuelYCEa3WiGmNGu1zEEv9fA7t7zcNFT0">
t1.id</a>,ST_Area(t2.geom) desc;<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">Enclose this in CTE and then just select "outer" polygons based on left column and "inner" based on right column.<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">wt., 30 lis 2021 o 07:30 <<a href="mailto:paul.malm@lfv.se">paul.malm@lfv.se</a>> napisał(a):<o:p></o:p></p>
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<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"><span lang="EN-US">Hi,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">I have a polygon layer where polygons are inside other polygons (could be polygons in polygons in polygons…).
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">I would like to separate them in 2 different layers, one layer with the outer most polygon and one layer with all polygons that has a surrounding polygon.
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Is there a smart way to do this in SQL?</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Paul</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">
</span><img border="0" width="132" height="107" style="width:1.375in;height:1.1145in" id="gmail-m_8546879809557756944Bild_x0020_1" src="cid:image001.jpg@01D7E5DE.AADE3A30" alt="1_LFV_svensk_96"><o:p></o:p></p>
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<span style="font-size:9.0pt;color:#333333"> </span><span style="font-size:9.0pt">Paul Malm</span><o:p></o:p></p>
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<span style="font-size:9.0pt;color:#333333"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-top:2.0pt;mso-margin-bottom-alt:auto;line-height:10.0pt">
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<span style="font-size:9.0pt;color:#333333"> </span><o:p></o:p></p>
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<span style="font-size:9.0pt;color:#333333"> Direkt 08-797 70 23 Mobil 07</span><span style="font-size:9.0pt">0<span style="color:#333333">-860 11 15<br>
<a href="mailto:paul.malm@lfv.se" target="_blank">paul.malm@lfv.se</a> </span>
</span><o:p></o:p></p>
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<span style="font-size:9.0pt;color:#333333"> Besöks- och postadress<br>
LFV Flyginfo SE</span><o:p></o:p></p>
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<span style="font-size:9.0pt;color:#333333"> Af Pontins väg 6 </span><o:p></o:p></p>
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<span style="font-size:9.0pt;color:#333333"> 115 21 STOCKHOLM</span><o:p></o:p></p>
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<span style="font-size:9.0pt;color:#00CC00"> Tänk på miljön innan du skriver ut detta e-postmeddelande.</span><o:p></o:p></p>
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