PostGIS Development Blog http://postgis.net/ 2016-09-29T17:55:08+00:00 PieCrust 1.2.0 PostGIS 2.3.0 Released 2016-09-26T00:00:00+00:00 2016-09-26T00:00:00+00:00 http://postgis.net/2016/09/26/postgis-2.3.0 Regina Obe Regina Obehttp://postgis.net <p>The PostGIS development team is pleased to announce the release of PostGIS 2.3.0.<br /> This is the first version to utilize the parallel support functionality introduced in PostgreSQL 9.6. As such, if you are using PostgreSQL 9.6, we strongly encourage you to use this version.</p> <p>Parallel support will make many queries using PostGIS relationship operators and functions faster. In order to take advantage of parallel query support, make sure to set <code>max_parallel_workers_per_gather</code> to something greater than 0 as noted in <a href="https://www.postgresql.org/docs/9.6/static/runtime-config-resource.html#GUC-MAX-PARALLEL-WORKERS-PER-GATHER"><code>max_parallel_workers_per_gather</code> PostgreSQL runtime configs</a></p> <p>Best served with [PostgreSQL 9.6+] which is due out this week and <a href="https://lists.osgeo.org/pipermail/pgrouting-users/2016-September/002287.html">pgRouting 2.3.0</a> which also just got released.</p> <p>Packages from maintainers will be out in the coming days and weeks.</p> <ul> <li><a href="http://download.osgeo.org/postgis/source/postgis-2.3.0.tar.gz">Download</a></li> <li><a href="http://download.osgeo.org/postgis/docs/doc-html-2.3.0.tar.gz">html doc download</a></li> <li><a href="http://download.osgeo.org/postgis/docs/postgis-2.3.0.pdf">pdf doc download</a></li> <li><a href="https://svn.osgeo.org/postgis/tags/2.3.0/ChangeLog">Changelog</a></li> </ul> Continue Reading by clicking title hyperlink .. PostGIS 2.3.0rc1 Released 2016-09-19T00:00:00+00:00 2016-09-19T00:00:00+00:00 http://postgis.net/2016/09/19/postgis-2.3.0rc1 Regina Obe Regina Obehttp://postgis.net <p>PostGIS 2.3.0rc1 is feature complete, so we&#8217;re looking for testing and feedback! Best served with <a href="https://www.postgresql.org/about/news/1693/">PostgreSQL 9.6rc1</a> and <a href="https://github.com/pgRouting/pgrouting/releases/tag/pgrouting-2.3.0-rc1">pgRouting 2.3.0-rc1</a></p> <p>Please give this release candidate a try and report back any issues you encounter. New things since 2.3.0beta1 release</p> <ul> <li><a href="http://download.osgeo.org/postgis/source/postgis-2.3.0rc1.tar.gz">Download</a></li> <li><a href="http://download.osgeo.org/postgis/docs/doc-html-2.3.0rc1.tar.gz">html doc download</a></li> <li><a href="http://download.osgeo.org/postgis/docs/postgis-2.3.0rc1.pdf">pdf doc download</a></li> <li><a href="https://svn.osgeo.org/postgis/tags/2.3.0rc1/ChangeLog">Changelog</a></li> </ul> <p>Please <a href="https://trac.osgeo.org/postgis">report bugs</a> that you find in this release.</p> <p><strong>Important / Breaking Changes</strong></p> <ul> <li><p>3466, Casting from box3d to geometry now returns a 3D geometry (Julien Rouhaud of Dalibo)</p></li> <li><p>3604, pgcommon/Makefile.in orders CFLAGS incorrectly leading to wrong liblwgeom.h (Greg Troxel)</p></li> <li><p>3396, ST_EstimatedExtent, now throws WARNING instead of ERROR (Regina Obe)</p> <p><strong>New Features and Performance Enhancements</strong></p></li> <li><p>Add support for custom TOC in postgis_restore.pl (Christoph Moench-Tegeder)</p></li> <li>Add support for negative indexing in ST<em>PointN and ST</em>SetPoint (Rémi Cura)</li> <li><p>Numerous new function additions and enhancements: <a href="http://postgis.net/docs/manual-dev/PostGIS_Special_Functions_Index.html#NewFunctions_2_3">New Functions and Enhancements</a></p></li> <li><p>3549, Support PgSQL 9.6 parallel query mode, as far as possible (Paul Ramsey, Regina Obe)</p></li> <li>3557, Geometry function costs based on query stats (Paul Norman)</li> <li>3591, Add support for BRIN indexes (Giuseppe Broccolo of 2nd Quadrant, Julien Rouhaud and Ronan Dunklau of Dalibo)</li> <li><p>3496, Make postgis non-relocateable (for extension install), schema qualify calls in functions (Regina Obe) Should resolve once and for all for extensions <a href="https://trac.osgeo.org/postgis/ticket/3494">#3494</a>, <a href="https://trac.osgeo.org/postgis/ticket/3486">#3486</a>, <a href="https://trac.osgeo.org/postgis/ticket/3076">#3076</a> </p></li> <li><p>3547, Update tiger geocoder to support TIGER 2016 and use http or ftp (Regina Obe)</p></li> </ul> <p>See the full list of changes in the <a href="http://svn.osgeo.org/postgis/tags/2.3.0rc1/NEWS">news file</a> and please <a href="https://trac.osgeo.org/postgis">report bugs</a> that you find in the release. Binary packages will appear in <a href="http://postgis.net/install">repositories</a> over the coming weeks as packagers roll out builds.</p> <p>View all <a href="http://trac.osgeo.org/postgis/query?status=closed&amp;groupdesc=1&amp;group=priority&amp;milestone=PostGIS+2.3.0&amp;order=priority">closed tickets for 2.3.0</a>.</p> PostGIS 2.3.0beta1 Released 2016-09-06T00:00:00+00:00 2016-09-06T00:00:00+00:00 http://postgis.net/2016/09/06/postgis-2.3.0beta1 Regina Obe Regina Obehttp://postgis.net <p>PostGIS 2.3 is feature complete, so we&#8217;re looking for testing and feedback! Best served with PostgreSQL 9.6.</p> <p>Please give this beta a try and report back any issues you encounter. </p> <ul> <li><a href="http://download.osgeo.org/postgis/source/postgis-2.3.0beta1.tar.gz">Download</a></li> <li><a href="http://download.osgeo.org/postgis/docs/doc-html-2.3.0beta1.tar.gz">html doc download</a></li> <li><a href="http://download.osgeo.org/postgis/docs/postgis-2.3.0beta1.pdf">pdf doc download</a></li> <li><a href="https://svn.osgeo.org/postgis/tags/2.3.0beta1/ChangeLog">Changelog</a></li> </ul> <p>Please <a href="https://trac.osgeo.org/postgis">report bugs</a> that you find in this release.</p> <p>** Important / Breaking Changes **</p> <ul> <li><p>3466, Casting from box3d to geometry now returns a 3D geometry (Julien Rouhaud of Dalibo)</p></li> <li><p>3604, pgcommon/Makefile.in orders CFLAGS incorrectly leading to wrong liblwgeom.h (Greg Troxel)</p> <p>** New Features and Performance Enhancements **</p></li> <li><p>Add support for custom TOC in postgis_restore.pl (Christoph Moench-Tegeder)</p></li> <li>Add support for negative indexing in ST<em>PointN and ST</em>SetPoint (Rémi Cura)</li> <li><p>Numerous new function additions and enhancements: <a href="http://postgis.net/docs/manual-dev/PostGIS_Special_Functions_Index.html#NewFunctions_2_3">New Functions and Enhancements</a></p></li> <li><p>3549, Support PgSQL 9.6 parallel query mode, as far as possible (Paul Ramsey, Regina Obe)</p></li> <li>3557, Geometry function costs based on query stats (Paul Norman)</li> <li>3591, Add support for BRIN indexes (Giuseppe Broccolo of 2nd Quadrant, Julien Rouhaud and Ronan Dunklau of Dalibo)</li> <li><p>3496, Make postgis non-relocateable (for extension install), schema qualify calls in functions (Regina Obe) Should resolve once and for all for extensions <a href="https://trac.osgeo.org/postgis/ticket/3494">#3494</a>, <a href="https://trac.osgeo.org/postgis/ticket/3486">#3486</a>, <a href="https://trac.osgeo.org/postgis/ticket/3076">#3076</a> </p></li> <li><p>3547, Update tiger geocoder to support TIGER 2016 and use http or ftp (Regina Obe)</p></li> </ul> <p>See the full list of changes in the <a href="http://svn.osgeo.org/postgis/tags/2.3.0beta1/NEWS">news file</a> and please <a href="https://trac.osgeo.org/postgis">report bugs</a> that you find in the release. Binary packages will appear in <a href="http://postgis.net/install">repositories</a> over the coming weeks as packagers roll out builds.</p> <p>View all <a href="http://trac.osgeo.org/postgis/query?status=closed&amp;groupdesc=1&amp;group=priority&amp;milestone=PostGIS+2.3.0&amp;order=priority">closed tickets for 2.3.0</a>.</p> Nautilytics Case Study 2016-04-05T00:00:00+00:00 2016-04-05T00:00:00+00:00 http://postgis.net/2016/04/05/nautilytics Christopher Lanoue Christopher Lanouehttp://postgis.net <p><a href="http://www.nautilytics.com/">Nautilytics</a> is a small data visualization and GIS startup based out of Boston, MA. We use PostGIS and PostgreSQL, among other open-source tools to build powerful web applications for US government organizations, public, and private sector companies.</p> Continue Reading by clicking title hyperlink .. PostGIS for fast prototyping and Research 2016-04-04T00:00:00+00:00 2016-04-04T00:00:00+00:00 http://postgis.net/2016/04/04/remi_cura Rémi Cura Rémi Curahttp://postgis.net <p>I used extensively postgis (+ecosystem) for my phd thesis, in several ways. The first is that PostGIS is a good steady horse (elephant?): a database is the perfect place to store a lot of very different information in the same place and put them in relation. For geospatial data, postgis means you always have a way to put data in relation (are they at the same place?).</p> Continue Reading by clicking title hyperlink .. Plenario (Univeristy of Chicago) 2016-03-29T00:00:00+00:00 2016-03-29T00:00:00+00:00 http://postgis.net/2016/03/29/plenario_uccd William Engler William Englerhttp://postgis.net <p>The <a href="http://www.urbanccd.org/#urbanccd">Urban Center for Computation and Data (UrbanCCD)</a> is a research initiative of Argonne National Laboratory and the Computation Institute of the University of Chicago. We create computational tools to better understand cities. One of these is <a href="http://plenar.io/">Plenario</a>, our hub for open geospatial data. PostGIS makes the spatial operations at the heart of Plenario possible. </p> Continue Reading by clicking title hyperlink .. PostGIS 2.2.2 Released 2016-03-22T00:00:00+00:00 2016-03-22T00:00:00+00:00 http://postgis.net/2016/03/22/postgis-2.2.2 Paul Ramsey Paul Ramseyhttp://postgis.net <p>The PostGIS development team is happy to release patch for PostGIS 2.2, the 2.2.2 release. As befits a patch release, the focus is on bugs and breakages.</p> <p><strong>Bug Fixes and Improvements</strong></p> <ul> <li><a href="http://trac.osgeo.org/postgis/ticket/3463">#3463</a>, Fix crash on face-collapsing edge change</li> <li><a href="http://trac.osgeo.org/postgis/ticket/3422">#3422</a>, Improve <code>ST_Split</code> robustness on standard precision double systems (arm64, ppc64el, s390c, powerpc, &#8230;)</li> <li><a href="http://trac.osgeo.org/postgis/ticket/3427">#3427</a>, Update <code>spatial_ref_sys</code> to EPSG version 8.8</li> <li><a href="http://trac.osgeo.org/postgis/ticket/3433">#3433</a>, <code>ST_ClusterIntersecting</code> incorrect for MultiPoints</li> <li><a href="http://trac.osgeo.org/postgis/ticket/3435">#3435</a>, <code>ST_AsX3D</code> fix rendering of concave geometries</li> <li><a href="http://trac.osgeo.org/postgis/ticket/3436">#3436</a>, memory handling mistake in ptarray<em>clone</em>deep</li> <li><a href="http://trac.osgeo.org/postgis/ticket/3437">#3437</a>, <code>ST_Intersects</code> incorrect for MultiPoints</li> <li><a href="http://trac.osgeo.org/postgis/ticket/3461">#3461</a>, <code>ST_GeomFromKML</code> crashes Postgres when there are innerBoundaryIs and no outerBoundaryIs</li> <li><a href="http://trac.osgeo.org/postgis/ticket/3429">#3429</a>, upgrading to 2.3 or from 2.1 can cause loop/hang on some platforms</li> <li><a href="http://trac.osgeo.org/postgis/ticket/3460">#3460</a>, <code>ST_ClusterWithin</code> &#8220;Tolerance not defined&#8221; error after upgrade</li> <li><a href="http://trac.osgeo.org/postgis/ticket/3490">#3490</a>, Raster <a href="http://postgis.net/docs/manual-2.2/RT_FAQ.html#faq_raster_data_not_restore">data restore</a> issues, materialized views. Added scripts <code>postgis_proc_set_search_path.sql</code>, <code>rtpostgis_proc_set_search_path.sql</code></li> <li><a href="http://trac.osgeo.org/postgis/ticket/3426">#3426</a>, failing <code>POINT EMPTY</code> tests on fun architectures</li> </ul> <p>See the full list of changes in the <a href="http://svn.osgeo.org/postgis/tags/2.2.2/NEWS">news file</a> and please <a href="https://trac.osgeo.org/postgis">report bugs</a> that you find in the release.</p> <ul> <li><a href="http://download.osgeo.org/postgis/source/postgis-2.2.2.tar.gz">postgis-2.2.2.tar.gz</a></li> <li><a href="https://svn.osgeo.org/postgis/tags/2.2.2/ChangeLog">ChangeLog</a></li> </ul> <p>Binary packages will appear in <a href="http://postgis.net/install">repositories</a> over the coming weeks as packagers roll out builds.</p> <p>View all <a href="http://trac.osgeo.org/postgis/query?status=closed&amp;groupdesc=1&amp;group=priority&amp;milestone=PostGIS+2.2.2&amp;order=priority">closed tickets for 2.2.2</a>.</p> Vanguard Appraisals 2016-03-17T00:00:00+00:00 2016-03-17T00:00:00+00:00 http://postgis.net/2016/03/17/vanguard_appraisals Andy Colson Andy Colsonhttp://postgis.net <p>Vanguard Appraisals is new to the GIS world. In fact, we aren&#8217;t really in the GIS world; we just kind of brush up against it. We do mass property appraisal for entire county and city jurisdictions, and we develop software to collect, price and maintain values. We also host assessment data online so that homeowners can search and find property information much simpler from the comfort of their own home. Our software and websites are used in 7 states (IA, IL, MN, MO, NE, ND, SD).</p> Continue Reading by clicking title hyperlink .. Clever Maps 2016-03-17T00:00:00+00:00 2016-03-17T00:00:00+00:00 http://postgis.net/2016/03/17/clever_maps Michal Zimmermann Michal Zimmermannhttp://postgis.net <p>Clever°Maps&#8217; is a three years old startup based in the Czech Republic. We create web apps for four distinct market segments:</p> <ol> <li>business/location inteligence - helping companies to make decisions based on data, not on feelings</li> <li>farming - simplifying agenda and everyday work</li> <li>road infrastructure administration - settlement of land property rights, treaty evidence, speeding up the whole administrative process</li> <li>assets administration - treaty management, land purchases</li> </ol> Continue Reading by clicking title hyperlink .. Selecting only pixels of particular range of values with ST_Reclass 2016-03-13T00:00:00+00:00 2016-03-13T00:00:00+00:00 http://postgis.net/2016/03/13/tip_pixels_of_range_value Regina Obe Regina Obehttp://postgis.net <p>This raster question comes up quite a bit on PostGIS mailing lists and stack overflow and the best answer often involves the often forgotten <a href="/docs/RT_ST_Reclass.html" target="_blank"><code>ST_Reclass</code></a> function that has existed since PostGIS 2.0.<br /> People often resort to the much slower though more flexible <code>ST_MapAlgebra</code> or dumping out their rasters as Pixel valued polygons they then filter with WHERE val > 90, where <code>ST_Reclass</code> does the same thing but orders of magnitude faster.</p> Continue Reading by clicking title hyperlink ..