Postgis point lat long
Postgis point lat long. Is Postgis included in Postgresql? No, Postgis is an add-on, or extension. Can you create PostGIS types? Yes. Jul 10, 2020 · this answer to Oracle equivalent to postgis EPSG 4326 "geometry" type, and; this answer to Understanding geography, geometry, distance and wkt in PostGIS; but those questions are not duplicates of this one. answered Mar 10, 2022 at 8:22. lat), ST_MakePoint(bs2. Enhanced: 3. Ian Turton. 74 are quite different. 0488106 33. 5559 49. This will update the geometry (point,4326) column properly and when you do a select in the table the value of the Description. Create a geographic point ( target_geography ) using the provided coordinates and the GeoAlchemy2 library's ST_GeogFromWKB Latitude. in which I have stored the data. 4068032 47. 484832)', 4326) Perform queues to check if the Point is in a Long/Lat rectangle May 15, 2019 · There is polygon table. Feb 2, 2019 · note that this line is incorrect, "LINESTRING(7. Mixing the two up can lead to questions like “why is this European city showing up in Africa on my map?” If you accidentally loaded data in latitude/longitude order, you can easily Apr 4, 2018 · To split longitude and latitude use the functions ST_X and ST_Y: SELECT ST_X(geom),ST_Y(geom) FROM colonias. As mentioned above, you can also use the following: SELECT (ST_AsLatLonText('POINT (-120. Description. 243"W. I have a list of 22000 polygons ---- in another table called place_polygon. (1 row) Note that points are created with LONGITUDE FIRST. Now i want to import it into PostGIS Database. This method implements the SQL/MM specification. It is also easier to use for numeric coordinate values. Use ST_MakePointM to make points with XYM coordinates. geom)). I've only used KNN-GiST with text trigrams, but I know they work with PostGIS, too -- I just Nov 30, 2022 · I'm having trouble populating a geometry (geom) column by using already existing columns (the data has an x, y, as well as lat, long columns) the 4 columns are in varchar. ST_GeomFromText('POINT(6. 2; PostGIS ST_Intersection in conjunction with ST_Intersects is useful for clipping geometries such as in bounding box, buffer, or region queries where you only require the portion of a geometry that is inside a country or region of interest. Although the sub-query may return a single row in some instances, it might return zero rows in other instances (where there are no overlaps). There is a function purpose-built for this query, ST_DWithin(). 0) The “DWithin” stands for “within distance”. I've searched a lot, but found close to nothing related to the geography points. Correct projection is 4326, but client use Google Jan 21, 2016 · PostGis only creates a generic type geometry. If you are absolutely sure all your WKT geometries are points, don't use this function. Repeated nodes at the beginning of input LineStrings are collapsed to a single point. If your point is "one can have a Geometry type behave like a Point type" then yes, you may, but the type itself is not enforcing you. After storing lon lat values as a GEOGRAPHY data type, how do I retrieve the individual lat lon values? Failed attempt: SELECT id, geog, ST_X(geog), ST_Y(geog) FROM locations; Error: No function Los Angeles: POINT(-118. Jan 5, 2017 · Once you create the table, inserting records in it, is as simple as: INSERT INTO X (geog) VALUES (ST_GeographyFromText('POINT(2. SQL-MM 3: 6. ST_Transform is often confused with ST_SetSRID. Devdatta Tengshe. 2°19'29. It can be accessed by running the Postgis ST_AsText function. 0 srid as an extra optional argument was added. In case your geometries are not points, you have to first extract the points using ST_DumpPoints an then parse them as described above. street an array of varchar: These are cross streets (or the street) (streets that intersect or are the street the point is projected to be on). However, I am unable to store it in the form of point and when I query as ST_AsText(geom), I simply get long/lat value not a point. Feb 11, 2020 · Right now I have a data base with PostGIS. Postgres how to use point type in query. 1,098 11 12. In the following code, I tried to transform into longitude using 900913 and 4326 projection. 0 Sep 14, 2015 · I happen to come across a slight confusion while querying planet_osm_lines when I dump (St_DumpPoints) LineString into point and trying to get long/lat from that point. org) containing latitude/longitude (WSG-84) Added a GeometryColumn geom with srid=4326 and datatype=POINT. A set-returning function (SRF) that extracts the coordinates (vertices) of a geometry. How to create this geometry column using the 2 coordinate fields? Mar 15, 2019 · The AddGeometryColumn function adds an empty geometry column to your table. Enhanced: 2. I have a list of 13000 places (with latitude and longitude) --- in table : place. 45 meters and 62. Try this: UPDATE unique_latlongs SET highwayid =. This has the advantage that a geometry's bounding box is half the size If you want to get the Nth point of each LineString in a MultiLineString, use in conjunction with ST_Dump. st_aslatlontext. 0, you can quickly find the nearest geometry (provided you have a GiST index on geom ), and get the osmid for highwayid. latitude),4326)) Note: you also need to use longitude, latitude when using 4326 with PostGIS. For geography types defaults to return the minimum geodesic distance between two geographies in meters, compute on the spheroid determined by the SRID. What you want to do is use ST_MakePoint(long,lat). To get the minimum and maximum X value of geometry coordinates use the functions ST_XMin and ST_XMax. 0 AND VALUE[1] BETWEEN -180 AND 180); It is assumed the point is in a lat/lon projection. It can be thought of as a box that contains the point. geometry,4674)) AS LAT, --latitude point y SIRGAS 2000 ST_ASTEXT(table. Declare a latlong type inherited from point: CREATE DOMAIN latlong AS point CHECK (VALUE[0] BETWEEN -90. Jul 8, 2014 · What do you mean by not much different? I would say 7. 8580965)' How could I reverse the order to normal (latitude, longitude) ? Is (longitude, latitude) very odd order ? Maybe a little bit late. 8580927,11. 985114)'); Sep 13, 2018 · 7. This method allows us to create a POINT, which is a PostGIS geometry type, textually with the latitude and longitude values being specified in the construction of the type. Jun 27, 2016 · I have this excel spreadsheet with latlong coordinates in it and imported it into Postgis. 7144)) as distance; distance. Here is a look at the data with the the_geom column populated with POINT data. 0 AND 90. The index assisted order by operator has one major draw back: it only works with a single geometry literal on one side of the operator. Aug 8, 2012 · 4. are just passed through. Metadata Tables ¶. rental_shop_name, bs1. Several of the data sets contain different locations at latitude longitude points. 32202098 Providing a format (same as the default). I have created the geometry column (set to 4326 same as the table I'll be comparing it to) however all 112 rows are null. If you have PostGIS 2. I had already tried: UPDATE gas_stations. postgreSQL - Need to extract POINT or LINESTRING. Since the data is expressed as lat/long, you must also swap the coordinates. 3-D Geometries¶. 432044)', 4326)); If you have columns with numeric longitude/latitude, you can directly make a POINT geometry: ST_SetSRID(ST_MakePoint(long, lat), 4326); Check out the other geometry constructors in the manual. This is the SQL-MM equivalent for ST_MakePoint that takes just X and Y. rental_shop_code = bu. g: 10. For @vik86's request, the_geom can be updated in the Nov 3, 2012 · 7. E. So far, we have been working with 2-D geometries, with only X and Y coordinates. Creates a 2D, 3D Z or 4D ZM Point geometry. the name of your geom column. name FROM objects, point ORDER BY ST_Distance(point, geometries) LIMIT 1; Feb 25, 2011 · 25. 1. SELECT * FROM mytable WHERE ST_DWithin(geom, 'POINT(1000 1000)', 100. 2860666 53. It returns a set of geometry_dump rows, each containing a geometry ( geom field) and an array of integers ( path field). 0. 3461. select st_AsText(ST_FlipCoordinates(st_geomfromText('POINT(12. This function supports 3d and will not drop the z-index. I have Point of Interest data in MySQL. Create a new table with all the roads within the city of Prince George. SELECT ST_X(the_geom) FROM myTable; Latitude. 4067187 47. Oct 23, 2015 · I'm trying to extract latitude / longitude values from a polygon column in PostgreSQL that I created using the PostGIS extension, I tried get the coordinates using a query like this. Repeated points in Point and MultiPoint inputs are not collapsed. AmirtharajCVijay. It is st_distance_sphere that is the issue, though, as this takes input in lat/lon, where st_distance takes distance in projected coordinates. What I want to do is the following: Save Long/Lat Points in the database table, e. 060316 48. 0 to support Tiger 2010 structured data and revised some logic to improve speed, accuracy of geocoding, and to offset point from centerline to side of I am having some trouble in inserting long/lat in the form of point. longitude, s. 2. Longitude. I'm finding a hard time storing a point coordinate as the location to a PostgreSQL using PostGIS: I found this query, but I'm unable to understand what the SRID and CRS values specified in this answer refers to. SELECT ST_Y(the_geom) FROM myTable; answered Jan 23, 2014 at 5:19. Oct 26, 2021 · I use a MultiPoint format for your point array dataset, so the result will be one of your original point and not some point along the road the dataset represent; Only use St_ClosestPoint once, because if you use it twice, then you pay the price twice; I don't know if St_Dwithin will help you a lot in your case Jan 16, 2024 · Extract latitude, longitude, and distance range from the input schema. 5, 7. SELECT ST_X(table. For example the following function call gets the geometric value against the specified Long/Lat position: myPointGeo = ST_GeometryFromText('POINT(40. Filled geom with values: UPDATE geoname SET geom = ST_SetSRID (ST_Point (longitude,latitude Jan 15, 2020 · I have a point in my PostGIS database that is put in using the lat/long using srid: 4326. lon, bs1. 1 if optional zcta5 dataset is loaded, the reverse_geocode function can resolve to state and zip even if the specific state data is not loaded. @dataclass(eq=True, frozen=True, slots=True) class Coordinate: """. 8 5. If you are building points from long lat coordinates and care more about performance and accuracy than OGC compliance, use ST_MakePoint or OGC compliant alias ST_Point. There's 35000 points (called cell_id) and 140,000 hydrological features 5. 8167; lng = 6. 126441 -86. Non-point geometry values with non-zero extent can also be mapped to GeoHash codes. ST_3DClosestPoint — Returns the 3D point on g1 that is closest to g2. 4,045 11 46 60. I need to select all data that is within a 30km radius of a specific lat/long point, for example: lat = 46. While ST_Value works, you still need to spatially join to the point as well: Or with a table: Apr 9, 2020 · 0. I am a newbie to this, so any advice is appreciated. You can sort your data by geographic location, get data within certain geographic boundaries, and do much more with it. 384643333333335 -23. location: Geometry. ST_Transform actually changes the coordinates of a geometry from one spatial reference system to another, while ST_SetSRID () simply changes the SRID identifier of the geometry. This is a geometry data type that is stored in the opaque binary geom column. 2 degrees, 19 minutes, 30 seconds to the S 3 degrees, 14 minutes, 3 seconds to the W. Are there other methods to create circles in PostGIS? NOTE: Information represented is from Spain. I am trying to solve the problem of finding the n nearest neighbors using PostGIS: Starting Point: Table geoname with geonames (from geonames. "geoJson"), st_setsrid(st_point( s. 9333; However whenever I tried to use ST_Distance(), I always received values less than 1, and using ST_DWithin() always returned true. May 4, 2015 · As a point of clarity for future users, lat / long coordinates are technically Geography (not Geometry). g. Ok. This is an example of an "overlay", which takes in two tables and outputs a new table that consists of spatially clipped or cut resultants. This is the first point of the 3D shortest line. 5559 E. Return the X coordinate of the point, or NULL if not available. 10547602474. If maxchars is not specified, the returned GeoHash code is for the Aug 4, 2020 · PostGIS and the Geography Type. In your case, you might want to combine your latitude and longitude columns into a single column -- location -- which can use the point() function to combine latitude and longitude into a Most likely you're querying the wrong table; look for a table called planet_osm_point. Constructs a PostGIS ST_Geometry object from the OGC Well-Known text representation. 0083)')); Here You are are creating a Geography point for Paris, with latitude of 49. Jun 27, 2013 · None of these talk about how to extract lat/long with the native point type. I want to use the geometry column instead of lat/long columns to get the results. Font: geodatasource Passed to function: lat1, lon1 = Latitude and Longitude of point 1 (in decimal degrees) lat2, lon2 = Latitude and Longitude of point 2 (in decimal degrees) Mar 10, 2022 · You can set the SRID by using ST_SetSRID so your where clause becomes: on st_contains(ST_GeomFromGeoJSON(cz. It first determines the best SRID that Jun 7, 2017 · I'm trying to take advantage of the many functions available in Postgis for dealing with latitude and longitude coordinate systems. It needs: the schema your table is in. 0. t1 t2 id | value id 1 Dec 27, 2012 · Say I have a number of geometries in my databases. 3. Combined, the query looks like this: The function ST_value: returns a raster value given a point in either x,y or lat,lon. The points in Linestring in Postgis (imported from osm by osm2pgsql) is described by the order (longitude, latitude) for example a Linestring in Munich Map 'LINESTRING(11. Step 4 - Run some queries How can I convert the latitude and the longitude coordinates of a rectangle in Cartesian coordinates, so that I can store them in a geometry field using PostGIS? . The point represents a car driving, now I want to add a polygon of the cars shape around this point and update. It is slower than ST_GeomFromText since it adds an additional validation step. ------------------. Input must be a point. 1277,51. Problem is that I can't represent it on Geoserver because there is no typical Postgis geometry column. The X (lon) and Y (lat) coordinates are normalized in the output to the "normal" range (-180 to +180 for lon, -90 to +90 for lat). I am running the following versions: PostgreSQL: 9. Query. geometry) AS Y1, --point y ST_X(ST_TRANSFORM(table. With extension PostGIS installed there is the geography datatype for points with latitude and longitude. rental_shop_code join bikestation as bs2 on Oct 8, 2021 · I wanted to use PostGIS to identify the shortest distance from a grid of points representing possible wildfires that a helicopter would waterbomb to a water source represented by a polygon layer. PostGIS is a Postgres extension that allows you to interact with Geo data within Postgres. There are two variants of ST_GeomFromText function. ST_Transform automatically selects a suitable conversion pipeline given the source and target spatial reference systems. INSERT INTO circles (geom) ( SELECT ST_Buffer (point, 600000, 'quad_segs=8') FROM points ); But circles created have not 600 kilometers of radius (radius is near this length, but not exactly). Currently, I have array of long/lat value and which I want to store into database in the form of point. To store Lat/Long in geometry data type I'm using ST_GeometryFromText function. Now answering your question on your actual structure. 0083N and longitude of 2. 214940000000002 -0. the geom field POINT s represent the coordinates of the supplied geometry. For geometry types returns the minimum 2D Cartesian (planar) distance between two geometries, in projected units (spatial ref units). Oct 19, 2015 · How to cast latitude, longitude coordinates as postgres geography type. A straightforward way to do so is using CTE (aka WITH clause). i use the query to get longitude and latitude. Overview. With a table in UTM. 8"N Apr 20, 2017 · Get latitude/longitude from PostGIS point. This method supports Circular Strings and Curves. 1664885)" it is wrong, to add the new request to check the geometry for errors Why can PostGIS create LINESTRING from the same values of coordinates of the POINT type? A shorter GeoHash is a less precise representation of a point. 41651 40. Useful for fixing geometries which contain coordinates expressed as latitude/longitude (Y,X). select bs1. Nov 26, 2020 · I would like to get a PostGIS point table from a PostGreSQL table containing OpenDataKit data where the coordinates are contained into in a column in a X Y Z M format (M being I think the value of the GPS precision in meters). 1664885,7. The higher the rating the less likely the geocode is right. Clearly you can't use ST_X() and ST_Y like you can do with a PostGIS Geometery; so here with the native point simply use array-deference syntax [0] and [1]. 9. If use_spheroid is false, a faster spherical Mar 15, 2018 · See this gist, you will find how to declare a DOMAIN on the point type and how to override the distance operator to return the orthodromic distance. Objects of type geometry can be points, polygons and so on. SELECT *, ST_MakePoint(pickup_longitude, pickup_latitude) as pickup_pt, ST_MakePoint(dropoff_longitude, dropoff_latitude) as dropoff_pt Returns a version of the given geometry with X and Y axis flipped. I realized that 4326 give me correct result while 900913 give the same as point value. This function supports M coordinates. Older installs require combining with ST_SetSRID to mark the srid on the geometry. lat)) from bikeuser as bu join bikestation as bs1 on bs1. I tried this query: SELECT * FROM mytable WHERE mytable. Characters other than D, M, S, C and . For example, I can convert single LON & LAT to geometry point using below code (using PostgreSQL command) : Description. To add a column: ALTER TABLE hospitals_healthcenters_jointed_to_evacuationzones ADD COLUMN geo_point GEOGRAPHY(POINT,4326); To update column geo_point for each record (based on existing coordinates in columns long Dec 4, 2018 · We want to be able to store all provincial data and be able to tell which country + province the point corresponds to, if any. In spatial databases like PostGIS and SQL Server, spatial coordinates are in longitude and then latitude. 9434) Paris: POINT(2. While you may be able to store simple lat/long geographic coordinates as a set of decimals, it does not scale very well when May 17, 2016 · While having a data type Point will enforce there's only 0 dimensional elements. However, I would like to add some altitude information to my database and I can't find the proper answer for which datatype should be used for properly holding Latitude, Longitude and Altitude in Postgis? Nov 30, 2019 · Using PostGIS extension. The bounding box coordinates are floored, guarenteeing that the geometry is contained entirely within its bounds. the EPSG code of the projection Dec 28, 2012 · 1. You can transform the lat/lon point to raster CRS on the fly using ST_Transform (). The geocoded point is defaulted to offset 10 meters from center-line off to side (L/R) of street address is located on. The above example CREATEs a table ( geometries) then INSERTs five geometries: a point, a line, a polygon, a polygon with a hole, and a collection. Jan 20, 2023 · You can use st_geomFromText after replacing ; with ,, and after specifying the geometry type. latitude,longitude,address,types. Oct 23, 2018 · To create geography with your lat long column use function st_setsrid(st_makepoint(long,lat),4326)::geography. Apparently with Hibernate 5, the geography type is supported. . SQL-MM 3: 7. I have two point tables from which I want to extract a value from one table to the other, based on the nearest distance of those two points. For geodetic coordinates, X is longitude and Y is latitude. Refer to Loader_Generate_Nation_Script for There are a few ways to do a radius search, but the key here is to do an efficient search. geometry) AS X1, --point x ST_Y(table. 298396 0 0)'))); Aug 2, 2023 · In Postgresql, latitude and longitude are represented by the POINT data type. Creates a point with X, Y and M (measure) coordinates. Unlike the "spatial join" demonstrated above, this query creates new geometries. 758871 -73. In PostGIS, the bounding box of a geometry is represented internally using float4 s instead of float8 s that are used to store geometries. 5. UPDATE table_name SET geom = ST_Transform(ST_SetSRID(ST_MakePoint(longitude, latitude), 4326),26913); postgis. 4. lon, bs2. For geography this is a thin wrapper around the geometry implementation. 928"S 3°14'3. The precision of the code depends on the geographic extent of the geometry. ST_Distance — Returns the distance between two geometry or geography values. In planet_osm_point, geometries are stored as geometry type; this allows the database to use spatial indexes and spatial operators, features that would be impossible with lat/longs stored as integers. This method implements the OGC Simple Features Implementation Specification for SQL 1. Jun 9, 2020 · My question is similar to Creating geometry from lat/lon in table using PostGIS?, but I need to convert set or array of LON & LAT in PostgreSQL into geometry value. – Sep 23, 2009 · INSERT INTO app(p_id, the_geom) VALUES(2, ST_GeomFromText('POINT(-71. the table name. About comments, to avoid terminological confusion: a Geometry with SRID=4326 is not "only lat long". lat, count(*), ST_MakeLine(ST_MakePoint(bs1. (SELECT I'm working on a system that stores latitude/longitude information of addresses in a PostGIS table. The second takes a SRID as the second argument and returns a geometry that includes this SRID as part of its ST_ClosestPoint — Returns the 2D point on g1 that is closest to g2. Maybe I'm not understanding, but you seem to be entering Longitude Latitude coordinates (-97, 21) in degrees,into a CRS that is UTM based, and uses meters. In conformance with the Simple Features for SQL ( SFSQL) specification, PostGIS provides two tables Nov 27, 2020 · For instance, you can import the Geometry type definition and type your column as so: import { Geometry } from 'geojson'; @Column. It is better convention to name geometry/geography database fields in accordance with the type of the object. 8533) The following calculates the distance between Los Angeles and Paris using the standard PostGIS Cartesian ST_Distance(geometry, geometry). 3. I need to find one record from table with some Point (Lat/Long) inside of area. This are the fields. Jun 2, 2018 · How to insert Google Maps API Lat/Long into PostgreSQL Postgis GEOMETRY(GEOMETRY, 4326) 2 How to insert long/lat value in postgis database in the form of Point(x,y)? Apr 4, 2017 · i'm working with postgreSQL with converting long/lat to point and also want to make line with that point. 3490 48. Nearest Neighbor Join¶. And then the query: select (point(-0. The second takes a SRID as the second argument and returns a geometry that includes this SRID as part of its 28. 006,40. Returns a Point with the given X and Y coordinate values. Is the AddGeometryColumn function which enforces the dimensional constraint, not the Geometry data type in any case. I would like to create a function within PostgreSQL whereby I can pass in a lat/long and have it return the closest geometries by distance (linear, and by road) for a given radius. 29. lat, bs2. This is fine for finding the objects nearest to one query object, but does not help for a spatial join, where the goal is to find the nearest neighbor for each of a full set of candidates. In web mapping APIs like Google Maps, spatial coordinates are often in order of latitude then longitude. Signed degrees instead of cardinal directions. ST_ClosestPoint — Returns the 2D point on g1 that is closest to g2. If you are using recent versions of the software, you can quickly find the K nearest neighbors to a point in PostGIS using KNN-GiST techniques. While not OGC-compliant, ST_MakePoint is faster and more precise than ST_GeomFromText and ST_PointFromText . This function supports Polyhedral surfaces. geometry,4674)) AS LongLat --using st_transform to get Los Angeles: POINT(-118. But PostGIS supports additional dimensions on all geometry types, a “Z” dimension to add height information and a “M” dimension for additional dimensional information (commonly time, or road-mile, or upstream-distance information) for each coordinate. ST_Point is not a type but a function which returns a geometry of type Point. Lat/long columns into point column in PostGIS. Apr 10, 2020 · I found a function that could help you. Per the documentation: Points are taken as (longitude, latitude) and not vice versa because longitude is closer to the intuitive idea of x-axis and Mar 7, 2013 · The solution to this problem is rather easier than it seems. 463471 52. geometry) AS XY, --wkt point xy ST_ASTEXT(ST_TRANSFORM(table. Finally, the inserted rows are SELECTed and displayed in the Output pane. It's example of coordinates: 149. 5073) <@> point(-74. 14668176, -35. This should work for the first part of your answer: WITH objects AS (SELECT name, (ST_Dump(roads. 9346343)'. The first takes no SRID and returns a geometry with no defined spatial reference system (SRID=0). geom AS geometries FROM roads), point AS (SELECT 'SRID=4326;POINT(long lat)'::geometry AS point ); SELECT DISTINCT ON (ST_Distance(point, geometries)), objects. I will be doing several queries based at different latitude longitude points, I need to find the closest locations at each point as well as all the points within a certain number of meters. rental_shop_name, bs2. geom && ST_MakeEnvelope(minLon, minLat, maxLon, maxLat, 4326); from this post: Select bounding box using postgis but it is returning no results. 3857 and 4326 are radically different, being meters and degrees respectively, but you have to plug them into the correct functions to get the right answers :D May 15, 2016 · Here's a working example to use a native PostgreSQL point type in SQLAlchemy without needing PostGIS or other extensions, based on the suggestions made in the other answers: import sqlalchemy. How to display LAT/LONG of polygon? 2. I have the car's bounding box in meters, but I'm not sure the best way of adding this information to the database. ST_RemoveRepeatedPoints can be used to collapse repeated points from the output LineString. answered Jan 5, 2017 at 9:40. 192448)')); st_aslatlontext ----- 40°11'32. To update the field using text and the input lat-long all I needed to do was defining the SRID in the text assign: location = 'SRID=4326;POINT (-118. You could form the same query using ST_Distance(), but it would run much slower, because there is no way for such a Jan 9, 2012 · In order to create the POINT, the ST_GeomFromText method is used. Container to hold a geolocation. This is the first point of the shortest line from one geometry to the other. As we all know (except for a few of us) the earth is not flat, it's round . Small values of K are fastest, and 1 is about as small as they get, so this should work very well for you. 4079 33. Note that the SRID of 4326 declares a geographic spatial reference system. Use ST_MakePoint to make points with XY, XYZ, or XYZM coordinates. Output 5. geometry,4674)) AS LONG, -- longitude point x SIRGAS 2000 ST_Y(ST_TRANSFORM(table. the path field (an integer[] ) is an index enumerating the To include the SRID as part of the output representation, use the non-standard PostGIS function ST_AsEWKT The textual representation of numbers in WKT may not maintain full floating-point precision. ST_AsText(coverage_area) as coverage_area But the output it returns it's not in a convenient form for me to use. PostGIS is a "geospatial database" and the "geo" in "geospatial" is an important qualifier: it means that all the coordinates in PostGIS point, lines, and polygons can be located somewhere on the earth. To ensure full accuracy for data storage or transport it is best to use Well-Known Binary (WKB) format (see ST_AsBinary and maxdecimaldigits ). How can we achieve this? We would rather want to have an in house solution than depending on a third party solution like Google API as we need to be able to process a lot of rows of data. But does it required geometry of this point?? which command is to be used to find nearest point with radius or distance ? geometry and geography are PostGIS types, and your types are likely float, double, or something like that. cb vx ex fp nb cb pj bc vq vy