﻿{"id":16762,"date":"2026-05-14T10:00:00","date_gmt":"2026-05-14T08:00:00","guid":{"rendered":"https:\/\/www.sigterritoires.fr\/?p=16762"},"modified":"2026-05-08T10:58:32","modified_gmt":"2026-05-08T08:58:32","slug":"optimizar-consultas-postgis","status":"publish","type":"post","link":"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/","title":{"rendered":"[ES] Optimizar consultas PostGIS: gu\u00eda pr\u00e1ctica para mejorar el rendimiento"},"content":{"rendered":"\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Las bases de datos espaciales pueden contener millones de objetos geogr\u00e1ficos. En algunos casos, una consulta PostGIS puede tardar varios segundos, o incluso varios minutos.<\/p>\n\n\n\n<p>Este problema suele aparecer cuando:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>no se utilizan \u00edndices espaciales<\/li>\n\n\n\n<li>las geometr\u00edas son complejas<\/li>\n\n\n\n<li>las consultas espaciales est\u00e1n mal construidas<\/li>\n\n\n\n<li>o las estad\u00edsticas de la base de datos no est\u00e1n actualizadas.<\/li>\n<\/ul>\n\n\n\n<p>En este art\u00edculo veremos los pasos cl\u00e1sicos para diagnosticar y optimizar una consulta PostGIS lenta.<\/p>\n\n\n\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contenu <\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#1_Comenzar_analizando_la_consulta\" >1. Comenzar analizando la consulta<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#2_Verificar_la_presencia_de_indices_espaciales\" >2. Verificar la presencia de \u00edndices espaciales<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#3_Utilizar_operadores_espaciales_compatibles_con_indices\" >3. Utilizar operadores espaciales compatibles con \u00edndices<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#4_Verificar_la_complejidad_de_las_geometrias\" >4. Verificar la complejidad de las geometr\u00edas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#5_Evitar_ciertas_funciones_en_las_clausulas_WHERE\" >5. Evitar ciertas funciones en las cl\u00e1usulas WHERE<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#6_Verificar_las_estadisticas_de_la_base_de_datos\" >6. Verificar las estad\u00edsticas de la base de datos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#7_Limitar_los_datos_analizados\" >7. Limitar los datos analizados<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#8_Probar_diferentes_enfoques\" >8. Probar diferentes enfoques<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#9_Los_5_errores_mas_frecuentes_en_PostGIS_que_ralentizan_una_consulta\" >9. Los 5 errores m\u00e1s frecuentes en PostGIS que ralentizan una consulta<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#Ausencia_de_indice_espacial\" >Ausencia de \u00edndice espacial<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#Mal_orden_de_las_operaciones\" >Mal orden de las operaciones<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#Funcion_espacial_utilizada_sin_filtro_espacial\" >Funci\u00f3n espacial utilizada sin filtro espacial<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#Geometrias_demasiado_complejas\" >Geometr\u00edas demasiado complejas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#Estadisticas_PostgreSQL_obsoletas\" >Estad\u00edsticas PostgreSQL obsoletas<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#Ejemplo_real_de_optimizacion\" >Ejemplo real de optimizaci\u00f3n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#Version_optimizada\" >Versi\u00f3n optimizada<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#Lista_rapida_para_diagnosticar_una_consulta_PostGIS_lenta\" >Lista r\u00e1pida para diagnosticar una consulta PostGIS lenta<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/optimizar-consultas-postgis\/#Conclusion\" >Conclusi\u00f3n<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Comenzar_analizando_la_consulta\"><\/span>1. Comenzar analizando la consulta<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>El primer paso consiste en comprender c\u00f3mo PostgreSQL ejecuta la consulta.<\/p>\n\n\n\n<p>Para ello se utiliza:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>EXPLAIN ANALYZE<\/p>\n<p><\/div><\/div>\n\n\n\n<p>Ejemplo:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>EXPLAIN ANALYZE<br \/>\nSELECT *<br \/>\nFROM routes r<br \/>\nJOIN communes c<br \/>\nON ST_Intersects(r.geom, c.geom);<\/p>\n<p><\/div><\/div>\n\n\n\n<p>Este comando permite ver:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>si se utiliza un \u00edndice espacial<\/li>\n\n\n\n<li>cu\u00e1ntas filas son analizadas<\/li>\n\n\n\n<li>cu\u00e1nto tiempo toma cada etapa.<\/li>\n<\/ul>\n\n\n\n<p>Si aparece:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>Seq Scan<\/p>\n<p><\/div><\/div>\n\n\n\n<p>significa que PostgreSQL recorre toda la tabla.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Verificar_la_presencia_de_indices_espaciales\"><\/span>2. Verificar la presencia de \u00edndices espaciales<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Los \u00edndices son esenciales para las consultas espaciales.<\/p>\n\n\n\n<p>Un \u00edndice espacial normalmente se crea as\u00ed:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' src='data:image\/png;base64,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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>CREATE INDEX idx_routes_geom<br \/>\nON routes<br \/>\nUSING GIST (geom);<\/p>\n<p><\/div><\/div>\n\n\n\n<p>Los \u00edndices permiten a PostgreSQL reducir dr\u00e1sticamente el n\u00famero de geometr\u00edas que deben analizarse.<\/p>\n\n\n\n<p>Sin un \u00edndice espacial, el rendimiento puede ser desastroso.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Utilizar_operadores_espaciales_compatibles_con_indices\"><\/span>3. Utilizar operadores espaciales compatibles con \u00edndices<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Algunas funciones PostGIS utilizan autom\u00e1ticamente los \u00edndices.<\/p>\n\n\n\n<p>Por ejemplo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/postgis-st-intersects-vs-st-within-2\/\">ST_Intersects<\/a><\/li>\n\n\n\n<li>ST_Within<\/li>\n\n\n\n<li>ST_Contains<\/li>\n<\/ul>\n\n\n\n<p>Sin embargo, a menudo es \u00fatil a\u00f1adir un filtro de bounding box:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' src='data:image\/png;base64,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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>geom &amp;&amp; other_geom<\/p>\n<p><\/div><\/div>\n\n\n\n<p>Ejemplo:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>SELECT *<br \/>\nFROM routes r<br \/>\nJOIN communes c<br \/>\nON r.geom &amp;&amp; c.geom<br \/>\nAND ST_Intersects(r.geom, c.geom);<\/p>\n<p><\/div><\/div>\n\n\n\n<p>La prueba de bounding box es mucho m\u00e1s r\u00e1pida.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Verificar_la_complejidad_de_las_geometrias\"><\/span>4. Verificar la complejidad de las geometr\u00edas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Las geometr\u00edas muy detalladas pueden ralentizar considerablemente algunas operaciones.<\/p>\n\n\n\n<p>En ciertos casos, puede ser \u00fatil simplificar las geometr\u00edas:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>ST_Simplify(geom, tolerance)<\/p>\n<p><\/div><\/div>\n\n\n\n<p>o crear una tabla simplificada para determinados an\u00e1lisis.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Evitar_ciertas_funciones_en_las_clausulas_WHERE\"><\/span>5. Evitar ciertas funciones en las cl\u00e1usulas WHERE<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Algunas funciones impiden el uso eficiente de los \u00edndices.<\/p>\n\n\n\n<p>Por ejemplo:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>ST_Buffer(geom, 100)<\/p>\n<p><\/div><\/div>\n\n\n\n<p>dentro de una cl\u00e1usula WHERE puede ralentizar mucho la consulta.<\/p>\n\n\n\n<p>Mal ejemplo:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>WHERE ST_Intersects(ST_Buffer(geom,100), zone)<\/p>\n<p><\/div><\/div>\n\n\n\n<p>A menudo es preferible reformular la consulta.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Verificar_las_estadisticas_de_la_base_de_datos\"><\/span>6. Verificar las estad\u00edsticas de la base de datos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>PostgreSQL utiliza estad\u00edsticas para elegir el plan de ejecuci\u00f3n.<\/p>\n\n\n\n<p>Despu\u00e9s de numerosas modificaciones de datos, se recomienda ejecutar:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>ANALYZE<\/p>\n<p><\/div><\/div>\n\n\n\n<p>o<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>VACUUM ANALYZE<\/p>\n<p><\/div><\/div>\n\n\n\n<p>Esto ayuda a mejorar el plan de consulta.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Limitar_los_datos_analizados\"><\/span>7. Limitar los datos analizados<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A menudo es \u00fatil reducir el volumen de datos antes de realizar operaciones espaciales.<\/p>\n\n\n\n<p>Por ejemplo, usando un filtro atributivo:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>WHERE type = &lsquo;autopista&rsquo;<\/p>\n<p><\/div><\/div>\n\n\n\n<p>Esto reduce el n\u00famero de objetos evaluados.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_Probar_diferentes_enfoques\"><\/span>8. Probar diferentes enfoques<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>En algunos casos, distintas formulaciones de consulta pueden producir rendimientos muy diferentes.<\/p>\n\n\n\n<p>Por ello, es \u00fatil probar varias estrategias:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>uni\u00f3n espacial<\/li>\n\n\n\n<li>subconsulta<\/li>\n\n\n\n<li>materializaci\u00f3n intermedia.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"9_Los_5_errores_mas_frecuentes_en_PostGIS_que_ralentizan_una_consulta\"><\/span>9. Los 5 errores m\u00e1s frecuentes en PostGIS que ralentizan una consulta<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Algunos errores aparecen muy frecuentemente en las bases de datos espaciales.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ausencia_de_indice_espacial\"><\/span>Ausencia de \u00edndice espacial<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Es la causa m\u00e1s frecuente.<\/p>\n\n\n\n<p>Sin \u00edndice espacial, PostgreSQL debe analizar todas las geometr\u00edas de la tabla.<\/p>\n\n\n\n<p>Crear un \u00edndice:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' src='data:image\/png;base64,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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>CREATE INDEX idx_routes_geom<br \/>\nON routes<br \/>\nUSING GIST (geom);<\/p>\n<p><\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mal_orden_de_las_operaciones\"><\/span>Mal orden de las operaciones<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Algunas consultas ejecutan directamente una operaci\u00f3n espacial costosa sobre toda la tabla.<\/p>\n\n\n\n<p>Ejemplo ineficiente:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>SELECT *<br \/>\nFROM edificios<br \/>\nWHERE ST_Intersects(geom, ST_Buffer(:zone,100));<\/p>\n<p><\/div><\/div>\n\n\n\n<p>En este caso, la funci\u00f3n ST_Buffer se recalcula para cada fila.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Funcion_espacial_utilizada_sin_filtro_espacial\"><\/span>Funci\u00f3n espacial utilizada sin filtro espacial<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Una uni\u00f3n espacial puede ser muy lenta si no se utiliza un filtro de bounding box.<\/p>\n\n\n\n<p>Ejemplo recomendado:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>SELECT *<br \/>\nFROM routes r<br \/>\nJOIN communes c<br \/>\nON r.geom &amp;&amp; c.geom<br \/>\nAND ST_Intersects(r.geom, c.geom);<\/p>\n<p><\/div><\/div>\n\n\n\n<p>El operador &amp;&amp; utiliza el \u00edndice espacial.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Geometrias_demasiado_complejas\"><\/span>Geometr\u00edas demasiado complejas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Algunas geometr\u00edas contienen miles de v\u00e9rtices.<\/p>\n\n\n\n<p>En ciertos casos puede ser \u00fatil utilizar:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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8Rse5LYnptk0Moitppg0xiYRylq0VSilQQkEQYtQ1SK6k6si15SR5Ws\/HaUQGK4Y9l6+i6KbMT7f4a59T7E8d5wdm2NqtXRrrW4\/7Z0fVbgnRIUXZhHXnkQpCEFotctLa7X6RwcHBpO+WoX5VsGnbz7E3cfn2bx9iKiWYqopNo3RscVEEUor0KrnCOIpCw8aUqMRoxBtGG91mG3nvPW3d\/F7l2ymcCUHD0+ysNjmwANzHD4+yuzcAm97y+UXp\/XKJ4vW8p9ao3PU87uXej4Zf\/2X\/xMfAo1aXL3wZVu+UvroD\/c\/OsMr9uzglgcmuOngBBu3rcM2qkTV9LRFTGyJkghR+ufjBY+4gCtLQlmiypKaBM4aiPnkVbuppxGtlQ7dLMP7AudKHnjsaZqLy0xOT9NaaeGkIJLyXaEovhIQ+eyn\/nZtFvnYF+6m0y15+XnDr7\/u42988w23Psm\/33aYN77+YprKsmFzP1E1wVZibDUmqsSYNMEkEcYa0KBYDXYREecxRqtgFDnIpprh46\/doeqJoSwd1hisMRQltHPHzpF1bFhXYXhTnbt\/dJCJySZbhvs+stBc\/J4ry8k1i8ZaAoMN07hw99B7Dj05a2\/dd4zLf+tMrnrFDtZvqJNbgyQRNo2wadyLjzTCxhZtNFpptFYorUgiEyppJDqJeq4XW3X59n7VV4lwLpxORkortNYoFHnh6WYlWV5y7lkjWGOYXWjtiZJ0b5Skas0g3SzDqnD+xsHK74gyXHnpLqr9NbpeuOjMIX53zzCNaoSJLcZaTGTQ0erkFav3Xox4Ee0VykYaYy1RZHnZUK2X0f+XvysUIoJWGqM1BEjThN1nbqHV6pI5eZcytrpmkLN3btJFKVdNzXbivVfs5FWXbOPEbIcb95\/kwdFFFgpPmkRoazBWY6zBaIM+DcFqvzc7AaV1710HHJzrnF4V1LNgRAmIoFTvudYaVwaGhvqIraGbla\/RqB1rBumrJVsaib3yth88zZdufozLzh\/mrB2DLBWek8sZj8ys0CwDohRaK7QCo1atoBT6WXetFEYrdG+hR2mIrH7u4hYEEQheCNLrA6c\/iHeBXbtHWGq27A\/2PX75mtNvu1NcGLzsUTriq7cfYaG0GKu5+oJh\/uCKM5npeh5e6HKsK3R9oL66UD37657qqtVr9Q1io7nr5DIXDibh5Rsb2jlHQABBIygBQRCRU8sfPgTi2DI42GCpefjlawYps3y3c7I+rcY4rzg23uKP33Qer71ohJ3Dg73PGjzfG13mxqdXmCgDKgrE2vyCiNCnbO4EJQGNsJCV\/NfTTT1Sj9lQjdCiyfPAUidHGcEahQ+ChJ6FAPK8ZHjLRrZsXb99zSBTUwu7RKWxUoZaJeaho002PzzNta88g6IoUNqitWLvjn4u3lDjtrE2t8\/kOK9IIv2s4F31\/RAQ7xDvIQRSA\/vGFhmbX+GanQPUDDxxdJYfHjjBxTtqXLSzThIHfPCE4PG+FzvOOdrtzvo1g+RlWG8ji9IGUFRjQyO1dPKCOOoFLWhCEDZUI959dj\/dsMQtE13iJKJiNbHpZa3gheAd4jwSAoSeZkq14sh8m78fXUA6npUTc7Snltj\/03HeuXcrey9dj\/ehdwVPEMG7QNbN62sXjX5Fi7WI9OODkEQRl501QGyEbl4SiyKJY4zWeBdQGi5dFyMIjy2VLDrPYiYkBhIFwQckeCQ4vHeIc0jpSEQwSpN1utjS01+JaHtP4XvS3zmP8wHnHKherAQRvWaQUE5nSpZwJicrhxiuj7BlncV5hy\/l55kpijBGEzycP5Bw0VDKTNezWHoems+5Z7pDy3m0BMR7gu+5SnC9S7xAIYTlHApP8AGDZ\/+hCc7bZkjiQFmWlM5hjGFqYoaVpaV87SAhn1AevFtBqZj52SmeODbFzpF+NEJe9NKnCMRRhDWKVPf01daaZSuWc\/tTtieKv9s\/BsGjvcc7TyhKQubwWYlkjmxukWx2npAVhDLD5V2enmlx4GHHay\/bTlGWpy1SZCW+LBfXDCKBY6KlLd7V4jSQ5wXfvOMJ9py1iR3DgxRFcWrHSJBAbC3amOesH8ZoWq2M5swSqRKU94TCIXlJyD1SONxKl2xmFp93CWWJ+Jzgc5R3tDs5RVGSFwVBAqDIiwJt7PQLsEj5Mx30uEh5dnAFlUrg6IkZjpyYY9vGBi4EUD054UXwIWC1xhiDUQprNHcdnubz9xxDZyUKIZSBUPYAxHlCt6RoNnF5hlVQrVraKzlOhCjSbByq0O50KZ0DFGXpmJqaR+DwmkGMsY8GCQeCL84WlyG+ACLuO3iSi8\/ZSH+9QhaEEHoZxTuPtbonU7QmNoZ7j0wxNr7IhmqM855QBsR5KAOhdD2I9gpKAt47Mi8ECXgX2DbcYOf2AZbaHXwIaK1YWlrBRhak+Mnas1ZwLRG5W7x7p\/cZynVIk4Tv7z+OF817rr2ATevr5CEQQoTXntJprLGksSEoj1vJ0Z0cJwFxq\/v2AFJ6yuVFytZyb30JHgm+l81Cz1V3bu1DESjyAq2htZLxzMlpnA8zutL3yJq1lpICI+V9oWjPBl8QXAcJXbTk3PHjo9xx33FEHN08J8tzsrwgywoIJZ0s4+v7jrPv0AQV73HtHN8tkMwTugVFc4FyebGXxcSDBE6JK1GgDDRXurS7GS54tNaMjs8xt7DM0nLrWyLMrtkiShlQ8gzivhpc8aFQZnizglWW1Gh++vg4b7hiB2kS4XwgspZqGrHv0Czff3iGnxxZIAhUYk0vnAx4T7GySJmt9MYIAUVACIgKBNWzjIhneaVLN8vxzrO80ub4yRlOjk64bH7sG6EsyzWDaG0BCh\/CjS5vv01ruzmYDkFbEMXs3ALziysMDVTRyuFtRBwJ37nvGX5wcIb+WkwUWUoXUNogoUPZXiSU2bMEbwB6VhHxq0AeE2nQUDqH4JlvtphdyOm285vLlYUD4oq1Fx867cXVNOwfUjb9N2OTv1FaoTCIh9YSjE7O0VfbjHMFA32KsekuE9OLVG1Ai8M7UFrjshY+W0a862lyAcEhEnpVllV5rNCgVneYRoN4jo8ucf+jC3TbxYRV4QtOmxyl1w4S\/CnrKe87zeuVhFcrM3yViEYHYcWXHH5qgl3bhxARxmcLbrrrGCdGF4jihOAEKPHFCr7soJRCUIgLQOjt6bXuSWP9XKGPBLSJuPfRJU6Md2h1Db7sfM5Lfn+0buR0PK0ta52i7m3VZspO8xMmqvyHTWW3IIgrmZiepZN1cWXg8afmeezIBL4EqwNlURKKDiIepQ1B9SaI0ihrfg5gev1ToAjg4ampgMs1hDq+eeSGfPnp6021f3XHpdYOctoPFUhwEMJ9WWvqw6nwRVthOOA59MgRXnHRDvobdb59x0Hml0rq9Qr5coEEhzYWpTTBF70al7Eos1p91Aqs6YEoiyjTS6C+Fx\/agLWK7twTd2ULRz+m4yh71uzWDlK2pn6hbCriblW9Ea8zSWNkbnqW7975AG\/5\/SvYOGiYHB8j8xHKxChtkeAQQFmDMRGo0JvsqiVEW5SOQEUoFSGsQolBjCZfPnJX0TrxXqWjCQi\/ZBH7eQJKKYvP298ubXM5iPucjuoXPv7okwytS+iraiLpIC5FCChvwGiiJAGjCMGhTG\/VRxvQFqViRKUok4CJCSZC4hrBefLxR25wnZMfVTpe8znJCzsfURqUvtt1l\/5Il9knlK28\/d59D9I\/2I9WAe8ygit6ApIERW9j5kShYbUebIEYpSpgKoS0BtUGqjGAa05N5RMHPlPOP\/0v2jTyF\/WgR6EQpX7m85X3aV\/ekRXZh\/MsvzipVNHWYuIY5xxaCWXZqx+b2BKCweURVmKgjsR9qL4BosF1BAvFxGPfkPbKdeXcU\/uVTn9dZ4gKlGoH774quHs2rq9fneWdtxeFeU21Fsfbt2yg3S2YWchRcYwyhjS2NBqWjq+QNCxxwyN6diZ65vu3LPbt\/np7Zemg8WpZ2WQtIfErPtXtlezHrOHL2vCt9uzkSL0irxqsb7pkpdU5o56Y9VhbGxoweudIcJFeWGqtzEy6vH20ODl\/f27qDymTzKqklWFiCL\/8wa566U81L4G8BPL\/A+R\/BgAzCInEE2+\/LgAAAABJRU5ErkJggg==' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>ST_Simplify(geom, tolerance)<\/p>\n<p><\/div><\/div>\n\n\n\n<p>o almacenar una versi\u00f3n simplificada.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Estadisticas_PostgreSQL_obsoletas\"><\/span>Estad\u00edsticas PostgreSQL obsoletas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Si la tabla ha sido modificada intensamente, PostgreSQL puede elegir un mal plan de ejecuci\u00f3n.<\/p>\n\n\n\n<p>Actualizar estad\u00edsticas:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>VACUUM ANALYZE<\/p>\n<p><\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejemplo_real_de_optimizacion\"><\/span>Ejemplo real de optimizaci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Supongamos una consulta que busca carreteras dentro de un municipio.<\/p>\n\n\n\n<p>Consulta inicial:<\/p>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>SELECT r.*<br \/>\nFROM routes r, communes c<br \/>\nWHERE ST_Intersects(r.geom, c.geom)<br \/>\nAND c.nom = &lsquo;Paris&rsquo;;<\/p>\n<p><\/div><\/div>\n\n\n\n<p>Tiempo de ejecuci\u00f3n: 45 segundos<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Version_optimizada\"><\/span>Versi\u00f3n optimizada<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' 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8Rse5LYnptk0Moitppg0xiYRylq0VSilQQkEQYtQ1SK6k6si15SR5Ws\/HaUQGK4Y9l6+i6KbMT7f4a59T7E8d5wdm2NqtXRrrW4\/7Z0fVbgnRIUXZhHXnkQpCEFotctLa7X6RwcHBpO+WoX5VsGnbz7E3cfn2bx9iKiWYqopNo3RscVEEUor0KrnCOIpCw8aUqMRoxBtGG91mG3nvPW3d\/F7l2ymcCUHD0+ysNjmwANzHD4+yuzcAm97y+UXp\/XKJ4vW8p9ao3PU87uXej4Zf\/2X\/xMfAo1aXL3wZVu+UvroD\/c\/OsMr9uzglgcmuOngBBu3rcM2qkTV9LRFTGyJkghR+ufjBY+4gCtLQlmiypKaBM4aiPnkVbuppxGtlQ7dLMP7AudKHnjsaZqLy0xOT9NaaeGkIJLyXaEovhIQ+eyn\/nZtFvnYF+6m0y15+XnDr7\/u42988w23Psm\/33aYN77+YprKsmFzP1E1wVZibDUmqsSYNMEkEcYa0KBYDXYREecxRqtgFDnIpprh46\/doeqJoSwd1hisMRQltHPHzpF1bFhXYXhTnbt\/dJCJySZbhvs+stBc\/J4ry8k1i8ZaAoMN07hw99B7Dj05a2\/dd4zLf+tMrnrFDtZvqJNbgyQRNo2wadyLjzTCxhZtNFpptFYorUgiEyppJDqJeq4XW3X59n7VV4lwLpxORkortNYoFHnh6WYlWV5y7lkjWGOYXWjtiZJ0b5Skas0g3SzDqnD+xsHK74gyXHnpLqr9NbpeuOjMIX53zzCNaoSJLcZaTGTQ0erkFav3Xox4Ee0VykYaYy1RZHnZUK2X0f+XvysUIoJWGqM1BEjThN1nbqHV6pI5eZcytrpmkLN3btJFKVdNzXbivVfs5FWXbOPEbIcb95\/kwdFFFgpPmkRoazBWY6zBaIM+DcFqvzc7AaV1710HHJzrnF4V1LNgRAmIoFTvudYaVwaGhvqIraGbla\/RqB1rBumrJVsaib3yth88zZdufozLzh\/mrB2DLBWek8sZj8ys0CwDohRaK7QCo1atoBT6WXetFEYrdG+hR2mIrH7u4hYEEQheCNLrA6c\/iHeBXbtHWGq27A\/2PX75mtNvu1NcGLzsUTriq7cfYaG0GKu5+oJh\/uCKM5npeh5e6HKsK3R9oL66UD37657qqtVr9Q1io7nr5DIXDibh5Rsb2jlHQABBIygBQRCRU8sfPgTi2DI42GCpefjlawYps3y3c7I+rcY4rzg23uKP33Qer71ohJ3Dg73PGjzfG13mxqdXmCgDKgrE2vyCiNCnbO4EJQGNsJCV\/NfTTT1Sj9lQjdCiyfPAUidHGcEahQ+ChJ6FAPK8ZHjLRrZsXb99zSBTUwu7RKWxUoZaJeaho002PzzNta88g6IoUNqitWLvjn4u3lDjtrE2t8\/kOK9IIv2s4F31\/RAQ7xDvIQRSA\/vGFhmbX+GanQPUDDxxdJYfHjjBxTtqXLSzThIHfPCE4PG+FzvOOdrtzvo1g+RlWG8ji9IGUFRjQyO1dPKCOOoFLWhCEDZUI959dj\/dsMQtE13iJKJiNbHpZa3gheAd4jwSAoSeZkq14sh8m78fXUA6npUTc7Snltj\/03HeuXcrey9dj\/ehdwVPEMG7QNbN62sXjX5Fi7WI9OODkEQRl501QGyEbl4SiyKJY4zWeBdQGi5dFyMIjy2VLDrPYiYkBhIFwQckeCQ4vHeIc0jpSEQwSpN1utjS01+JaHtP4XvS3zmP8wHnHKherAQRvWaQUE5nSpZwJicrhxiuj7BlncV5hy\/l55kpijBGEzycP5Bw0VDKTNezWHoems+5Z7pDy3m0BMR7gu+5SnC9S7xAIYTlHApP8AGDZ\/+hCc7bZkjiQFmWlM5hjGFqYoaVpaV87SAhn1AevFtBqZj52SmeODbFzpF+NEJe9NKnCMRRhDWKVPf01daaZSuWc\/tTtieKv9s\/BsGjvcc7TyhKQubwWYlkjmxukWx2npAVhDLD5V2enmlx4GHHay\/bTlGWpy1SZCW+LBfXDCKBY6KlLd7V4jSQ5wXfvOMJ9py1iR3DgxRFcWrHSJBAbC3amOesH8ZoWq2M5swSqRKU94TCIXlJyD1SONxKl2xmFp93CWWJ+Jzgc5R3tDs5RVGSFwVBAqDIiwJt7PQLsEj5Mx30uEh5dnAFlUrg6IkZjpyYY9vGBi4EUD054UXwIWC1xhiDUQprNHcdnubz9xxDZyUKIZSBUPYAxHlCt6RoNnF5hlVQrVraKzlOhCjSbByq0O50KZ0DFGXpmJqaR+DwmkGMsY8GCQeCL84WlyG+ACLuO3iSi8\/ZSH+9QhaEEHoZxTuPtbonU7QmNoZ7j0wxNr7IhmqM855QBsR5KAOhdD2I9gpKAt47Mi8ECXgX2DbcYOf2AZbaHXwIaK1YWlrBRhak+Mnas1ZwLRG5W7x7p\/cZynVIk4Tv7z+OF817rr2ATevr5CEQQoTXntJprLGksSEoj1vJ0Z0cJwFxq\/v2AFJ6yuVFytZyb30JHgm+l81Cz1V3bu1DESjyAq2htZLxzMlpnA8zutL3yJq1lpICI+V9oWjPBl8QXAcJXbTk3PHjo9xx33FEHN08J8tzsrwgywoIJZ0s4+v7jrPv0AQV73HtHN8tkMwTugVFc4FyebGXxcSDBE6JK1GgDDRXurS7GS54tNaMjs8xt7DM0nLrWyLMrtkiShlQ8gzivhpc8aFQZnizglWW1Gh++vg4b7hiB2kS4XwgspZqGrHv0Czff3iGnxxZIAhUYk0vnAx4T7GySJmt9MYIAUVACIgKBNWzjIhneaVLN8vxzrO80ub4yRlOjk64bH7sG6EsyzWDaG0BCh\/CjS5vv01ruzmYDkFbEMXs3ALziysMDVTRyuFtRBwJ37nvGX5wcIb+WkwUWUoXUNogoUPZXiSU2bMEbwB6VhHxq0AeE2nQUDqH4JlvtphdyOm285vLlYUD4oq1Fx867cXVNOwfUjb9N2OTv1FaoTCIh9YSjE7O0VfbjHMFA32KsekuE9OLVG1Ai8M7UFrjshY+W0a862lyAcEhEnpVllV5rNCgVneYRoN4jo8ucf+jC3TbxYRV4QtOmxyl1w4S\/CnrKe87zeuVhFcrM3yViEYHYcWXHH5qgl3bhxARxmcLbrrrGCdGF4jihOAEKPHFCr7soJRCUIgLQOjt6bXuSWP9XKGPBLSJuPfRJU6Md2h1Db7sfM5Lfn+0buR0PK0ta52i7m3VZspO8xMmqvyHTWW3IIgrmZiepZN1cWXg8afmeezIBL4EqwNlURKKDiIepQ1B9SaI0ihrfg5gev1ToAjg4ampgMs1hDq+eeSGfPnp6021f3XHpdYOctoPFUhwEMJ9WWvqw6nwRVthOOA59MgRXnHRDvobdb59x0Hml0rq9Qr5coEEhzYWpTTBF70al7Eos1p91Aqs6YEoiyjTS6C+Fx\/agLWK7twTd2ULRz+m4yh71uzWDlK2pn6hbCriblW9Ea8zSWNkbnqW7975AG\/5\/SvYOGiYHB8j8xHKxChtkeAQQFmDMRGo0JvsqiVEW5SOQEUoFSGsQolBjCZfPnJX0TrxXqWjCQi\/ZBH7eQJKKYvP298ubXM5iPucjuoXPv7okwytS+iraiLpIC5FCChvwGiiJAGjCMGhTG\/VRxvQFqViRKUok4CJCSZC4hrBefLxR25wnZMfVTpe8znJCzsfURqUvtt1l\/5Il9knlK28\/d59D9I\/2I9WAe8ygit6ApIERW9j5kShYbUebIEYpSpgKoS0BtUGqjGAa05N5RMHPlPOP\/0v2jTyF\/WgR6EQpX7m85X3aV\/ekRXZh\/MsvzipVNHWYuIY5xxaCWXZqx+b2BKCweURVmKgjsR9qL4BosF1BAvFxGPfkPbKdeXcU\/uVTn9dZ4gKlGoH774quHs2rq9fneWdtxeFeU21Fsfbt2yg3S2YWchRcYwyhjS2NBqWjq+QNCxxwyN6diZ65vu3LPbt\/np7Zemg8WpZ2WQtIfErPtXtlezHrOHL2vCt9uzkSL0irxqsb7pkpdU5o56Y9VhbGxoweudIcJFeWGqtzEy6vH20ODl\/f27qDymTzKqklWFiCL\/8wa566U81L4G8BPL\/A+R\/BgAzCInEE2+\/LgAAAABJRU5ErkJggg==' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n<p>SELECT r.*<br \/>\nFROM routes r<br \/>\nJOIN communes c<br \/>\nON r.geom &amp;&amp; c.geom<br \/>\nAND ST_Intersects(r.geom, c.geom)<br \/>\nWHERE c.nom = &lsquo;Paris&rsquo;;<\/p>\n<p><\/div><\/div>\n\n\n\n<p>Con:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00edndice espacial<\/li>\n\n\n\n<li>filtro bounding box<\/li>\n<\/ul>\n\n\n\n<p>Tiempo de ejecuci\u00f3n: menos de un segundo<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lista_rapida_para_diagnosticar_una_consulta_PostGIS_lenta\"><\/span>Lista r\u00e1pida para diagnosticar una consulta PostGIS lenta<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Cuando una consulta tarda demasiado, verifique:<\/p>\n\n\n\n<p>&#x2714; la consulta con EXPLAIN ANALYZE<br>&#x2714; la presencia de un \u00edndice espacial<br>&#x2714; el uso de operadores compatibles con \u00edndices<br>&#x2714; la complejidad de las geometr\u00edas<br>&#x2714; la presencia de un filtro atributivo<br>&#x2714; las estad\u00edsticas PostgreSQL (ANALYZE)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusi\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Cuando una consulta PostGIS es lenta, es importante seguir un enfoque progresivo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>analizar la consulta con EXPLAIN ANALYZE<\/li>\n\n\n\n<li>verificar los \u00edndices espaciales<\/li>\n\n\n\n<li>utilizar operadores compatibles con \u00edndices<\/li>\n\n\n\n<li>simplificar las geometr\u00edas si es necesario<\/li>\n\n\n\n<li>mantener actualizadas las estad\u00edsticas de la base de datos.<\/li>\n<\/ul>\n\n\n\n<p>Con estos pasos, a menudo es posible reducir el tiempo de ejecuci\u00f3n de varios minutos a solo unos segundos.<\/p>\n\n\n\n<p>En la mayor\u00eda de los casos, una consulta PostGIS lenta est\u00e1 relacionada con un \u00edndice faltante o con un mal plan de ejecuci\u00f3n. Un an\u00e1lisis met\u00f3dico con EXPLAIN ANALYZE casi siempre permite identificar el problema.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n","protected":false},"excerpt":{"rendered":"<p>Las bases de datos espaciales pueden contener millones de objetos geogr\u00e1ficos. En algunos casos, una consulta PostGIS puede tardar varios segundos, o incluso varios minutos. 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