Can you use OGR SQL instead of SQLite?
SQL dialect. In some cases can be used to use (unoptimized) OGR SQL instead of the native SQL of an RDBMS by passing OGRSQL. Starting with GDAL 1.10, the “SQLITE” dialect can also be used with any datasource.
How to use SQLite dialect with GDAL 1.10?
Starting with GDAL 1.10, the “SQLITE” dialect can also be used with any datasource. Character. Attribute query (like SQL WHERE). Logical. Continue after a failure, skipping the failed feature. Numeric. c (xmin,ymin,xmax,ymax) spatial query extents. Only features whose geometry intersects the extents will be selected.
When to use promote to multi in GDAL?
Starting with GDAL 1.10, PROMOTE_TO_MULTI can be used to automatically promote layers that mix polygon or multipolygons to multipolygons, and layers that mix linestrings or multilinestrings to multilinestrings. Can be usefull when converting shapefiles to PostGIS (and other target drivers) that implements strict checks for geometry type.
How to override spatial filter in ogr2ogr function?
Character. srs_def. (OGR >= 2.0) Override spatial filter SRS. Character. (OGR >= 1.11) Name of the geometry field on which the spatial filter operates on. Character.
What kind of geospatial data can ogr2ogr support?
ogr2ogr is supporting 5 types of geospatial data : “ESRI Shapefile”, “TIGER”, “MapInfo File”, “GML”, “PostgreSQL” ( Even if not mentionned in GDAL documentation, GeoJSON is actually supported ). ogr2ogr is an effective tool to use when you need to upload large shapefiles into a PostgreSQL/PostGIS database (compare to QGIS DB Manager).
Which is the command line tool for ogr2ogr?
ogrinfo – inspects a GIS datasource and spits out summary data or detailed information about the layers, kinds of geometries found in the file. ogr2ogr – this is a command line tool that converts one Ogr defined data source to another Ogr data source.
How to export multiple PostGIS tables in ogr2ogr?
One way in which ogr2ogr excels above using the pgsql2shp tool is that ogr2ogr can export multiple tables at once. This is pretty handy for sharing your postgis data with others who do not have a postgis database. The code below will export all your postgis tables out into a folder called mydatadump in ESRI shape (shp) format.