summaryrefslogtreecommitdiffstats
path: root/contrib/earthdistance/sql/earthdistance.sql
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--contrib/earthdistance/sql/earthdistance.sql359
1 files changed, 359 insertions, 0 deletions
diff --git a/contrib/earthdistance/sql/earthdistance.sql b/contrib/earthdistance/sql/earthdistance.sql
new file mode 100644
index 0000000..4145561
--- /dev/null
+++ b/contrib/earthdistance/sql/earthdistance.sql
@@ -0,0 +1,359 @@
+--
+-- Test earthdistance extension
+--
+-- In this file we also do some testing of extension create/drop scenarios.
+-- That's really exercising the core database's dependency logic, so ideally
+-- we'd do it in the core regression tests, but we can't for lack of suitable
+-- guaranteed-available extensions. earthdistance is a good test case because
+-- it has a dependency on the cube extension.
+--
+
+CREATE EXTENSION earthdistance; -- fail, must install cube first
+CREATE EXTENSION cube;
+CREATE EXTENSION earthdistance;
+
+--
+-- The radius of the Earth we are using.
+--
+
+SELECT earth()::numeric(20,5);
+
+--
+-- Convert straight line distances to great circle distances.
+--
+SELECT (pi()*earth())::numeric(20,5);
+SELECT sec_to_gc(0)::numeric(20,5);
+SELECT sec_to_gc(2*earth())::numeric(20,5);
+SELECT sec_to_gc(10*earth())::numeric(20,5);
+SELECT sec_to_gc(-earth())::numeric(20,5);
+SELECT sec_to_gc(1000)::numeric(20,5);
+SELECT sec_to_gc(10000)::numeric(20,5);
+SELECT sec_to_gc(100000)::numeric(20,5);
+SELECT sec_to_gc(1000000)::numeric(20,5);
+
+--
+-- Convert great circle distances to straight line distances.
+--
+
+SELECT gc_to_sec(0)::numeric(20,5);
+SELECT gc_to_sec(sec_to_gc(2*earth()))::numeric(20,5);
+SELECT gc_to_sec(10*earth())::numeric(20,5);
+SELECT gc_to_sec(pi()*earth())::numeric(20,5);
+SELECT gc_to_sec(-1000)::numeric(20,5);
+SELECT gc_to_sec(1000)::numeric(20,5);
+SELECT gc_to_sec(10000)::numeric(20,5);
+SELECT gc_to_sec(100000)::numeric(20,5);
+SELECT gc_to_sec(1000000)::numeric(20,5);
+
+--
+-- Set coordinates using latitude and longitude.
+-- Extract each coordinate separately so we can round them.
+--
+
+SELECT cube_ll_coord(ll_to_earth(0,0),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(0,0),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(0,0),3)::numeric(20,5);
+SELECT cube_ll_coord(ll_to_earth(360,360),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(360,360),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(360,360),3)::numeric(20,5);
+SELECT cube_ll_coord(ll_to_earth(180,180),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(180,180),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(180,180),3)::numeric(20,5);
+SELECT cube_ll_coord(ll_to_earth(180,360),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(180,360),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(180,360),3)::numeric(20,5);
+SELECT cube_ll_coord(ll_to_earth(-180,-360),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(-180,-360),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(-180,-360),3)::numeric(20,5);
+SELECT cube_ll_coord(ll_to_earth(0,180),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(0,180),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(0,180),3)::numeric(20,5);
+SELECT cube_ll_coord(ll_to_earth(0,-180),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(0,-180),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(0,-180),3)::numeric(20,5);
+SELECT cube_ll_coord(ll_to_earth(90,0),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(90,0),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(90,0),3)::numeric(20,5);
+SELECT cube_ll_coord(ll_to_earth(90,180),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(90,180),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(90,180),3)::numeric(20,5);
+SELECT cube_ll_coord(ll_to_earth(-90,0),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(-90,0),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(-90,0),3)::numeric(20,5);
+SELECT cube_ll_coord(ll_to_earth(-90,180),1)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(-90,180),2)::numeric(20,5),
+ cube_ll_coord(ll_to_earth(-90,180),3)::numeric(20,5);
+
+--
+-- Test getting the latitude of a location.
+--
+
+SELECT latitude(ll_to_earth(0,0))::numeric(20,10);
+SELECT latitude(ll_to_earth(45,0))::numeric(20,10);
+SELECT latitude(ll_to_earth(90,0))::numeric(20,10);
+SELECT latitude(ll_to_earth(-45,0))::numeric(20,10);
+SELECT latitude(ll_to_earth(-90,0))::numeric(20,10);
+SELECT latitude(ll_to_earth(0,90))::numeric(20,10);
+SELECT latitude(ll_to_earth(45,90))::numeric(20,10);
+SELECT latitude(ll_to_earth(90,90))::numeric(20,10);
+SELECT latitude(ll_to_earth(-45,90))::numeric(20,10);
+SELECT latitude(ll_to_earth(-90,90))::numeric(20,10);
+SELECT latitude(ll_to_earth(0,180))::numeric(20,10);
+SELECT latitude(ll_to_earth(45,180))::numeric(20,10);
+SELECT latitude(ll_to_earth(90,180))::numeric(20,10);
+SELECT latitude(ll_to_earth(-45,180))::numeric(20,10);
+SELECT latitude(ll_to_earth(-90,180))::numeric(20,10);
+SELECT latitude(ll_to_earth(0,-90))::numeric(20,10);
+SELECT latitude(ll_to_earth(45,-90))::numeric(20,10);
+SELECT latitude(ll_to_earth(90,-90))::numeric(20,10);
+SELECT latitude(ll_to_earth(-45,-90))::numeric(20,10);
+SELECT latitude(ll_to_earth(-90,-90))::numeric(20,10);
+
+--
+-- Test getting the longitude of a location.
+--
+
+SELECT longitude(ll_to_earth(0,0))::numeric(20,10);
+SELECT longitude(ll_to_earth(45,0))::numeric(20,10);
+SELECT longitude(ll_to_earth(90,0))::numeric(20,10);
+SELECT longitude(ll_to_earth(-45,0))::numeric(20,10);
+SELECT longitude(ll_to_earth(-90,0))::numeric(20,10);
+SELECT longitude(ll_to_earth(0,90))::numeric(20,10);
+SELECT longitude(ll_to_earth(45,90))::numeric(20,10);
+SELECT longitude(ll_to_earth(90,90))::numeric(20,10);
+SELECT longitude(ll_to_earth(-45,90))::numeric(20,10);
+SELECT longitude(ll_to_earth(-90,90))::numeric(20,10);
+SELECT longitude(ll_to_earth(0,180))::numeric(20,10);
+SELECT longitude(ll_to_earth(45,180))::numeric(20,10);
+SELECT longitude(ll_to_earth(90,180))::numeric(20,10);
+SELECT longitude(ll_to_earth(-45,180))::numeric(20,10);
+SELECT longitude(ll_to_earth(-90,180))::numeric(20,10);
+SELECT longitude(ll_to_earth(0,-90))::numeric(20,10);
+SELECT longitude(ll_to_earth(45,-90))::numeric(20,10);
+SELECT longitude(ll_to_earth(90,-90))::numeric(20,10);
+SELECT longitude(ll_to_earth(-45,-90))::numeric(20,10);
+SELECT longitude(ll_to_earth(-90,-90))::numeric(20,10);
+
+--
+-- For the distance tests the following is some real life data.
+--
+-- Chicago has a latitude of 41.8 and a longitude of 87.6.
+-- Albuquerque has a latitude of 35.1 and a longitude of 106.7.
+-- (Note that latitude and longitude are specified differently
+-- in the cube based functions than for the point based functions.)
+--
+
+--
+-- Test getting the distance between two points using earth_distance.
+--
+
+SELECT earth_distance(ll_to_earth(0,0),ll_to_earth(0,0))::numeric(20,5);
+SELECT earth_distance(ll_to_earth(0,0),ll_to_earth(0,180))::numeric(20,5);
+SELECT earth_distance(ll_to_earth(0,0),ll_to_earth(90,0))::numeric(20,5);
+SELECT earth_distance(ll_to_earth(0,0),ll_to_earth(0,90))::numeric(20,5);
+SELECT earth_distance(ll_to_earth(0,0),ll_to_earth(0,1))::numeric(20,5);
+SELECT earth_distance(ll_to_earth(0,0),ll_to_earth(1,0))::numeric(20,5);
+SELECT earth_distance(ll_to_earth(30,0),ll_to_earth(30,1))::numeric(20,5);
+SELECT earth_distance(ll_to_earth(30,0),ll_to_earth(31,0))::numeric(20,5);
+SELECT earth_distance(ll_to_earth(60,0),ll_to_earth(60,1))::numeric(20,5);
+SELECT earth_distance(ll_to_earth(60,0),ll_to_earth(61,0))::numeric(20,5);
+SELECT earth_distance(ll_to_earth(41.8,87.6),ll_to_earth(35.1,106.7))::numeric(20,5);
+SELECT (earth_distance(ll_to_earth(41.8,87.6),ll_to_earth(35.1,106.7))*
+ 100./2.54/12./5280.)::numeric(20,5);
+
+--
+-- Test getting the distance between two points using geo_distance.
+--
+
+SELECT geo_distance('(0,0)'::point,'(0,0)'::point)::numeric(20,5);
+SELECT geo_distance('(0,0)'::point,'(180,0)'::point)::numeric(20,5);
+SELECT geo_distance('(0,0)'::point,'(0,90)'::point)::numeric(20,5);
+SELECT geo_distance('(0,0)'::point,'(90,0)'::point)::numeric(20,5);
+SELECT geo_distance('(0,0)'::point,'(1,0)'::point)::numeric(20,5);
+SELECT geo_distance('(0,0)'::point,'(0,1)'::point)::numeric(20,5);
+SELECT geo_distance('(0,30)'::point,'(1,30)'::point)::numeric(20,5);
+SELECT geo_distance('(0,30)'::point,'(0,31)'::point)::numeric(20,5);
+SELECT geo_distance('(0,60)'::point,'(1,60)'::point)::numeric(20,5);
+SELECT geo_distance('(0,60)'::point,'(0,61)'::point)::numeric(20,5);
+SELECT geo_distance('(87.6,41.8)'::point,'(106.7,35.1)'::point)::numeric(20,5);
+SELECT (geo_distance('(87.6,41.8)'::point,'(106.7,35.1)'::point)*5280.*12.*2.54/100.)::numeric(20,5);
+
+--
+-- Test getting the distance between two points using the <@> operator.
+--
+
+SELECT ('(0,0)'::point <@> '(0,0)'::point)::numeric(20,5);
+SELECT ('(0,0)'::point <@> '(180,0)'::point)::numeric(20,5);
+SELECT ('(0,0)'::point <@> '(0,90)'::point)::numeric(20,5);
+SELECT ('(0,0)'::point <@> '(90,0)'::point)::numeric(20,5);
+SELECT ('(0,0)'::point <@> '(1,0)'::point)::numeric(20,5);
+SELECT ('(0,0)'::point <@> '(0,1)'::point)::numeric(20,5);
+SELECT ('(0,30)'::point <@> '(1,30)'::point)::numeric(20,5);
+SELECT ('(0,30)'::point <@> '(0,31)'::point)::numeric(20,5);
+SELECT ('(0,60)'::point <@> '(1,60)'::point)::numeric(20,5);
+SELECT ('(0,60)'::point <@> '(0,61)'::point)::numeric(20,5);
+SELECT ('(87.6,41.8)'::point <@> '(106.7,35.1)'::point)::numeric(20,5);
+SELECT (('(87.6,41.8)'::point <@> '(106.7,35.1)'::point)*5280.*12.*2.54/100.)::numeric(20,5);
+
+--
+-- Test getting a bounding box around points.
+--
+
+SELECT cube_ll_coord(earth_box(ll_to_earth(0,0),112000),1)::numeric(20,5),
+ cube_ll_coord(earth_box(ll_to_earth(0,0),112000),2)::numeric(20,5),
+ cube_ll_coord(earth_box(ll_to_earth(0,0),112000),3)::numeric(20,5),
+ cube_ur_coord(earth_box(ll_to_earth(0,0),112000),1)::numeric(20,5),
+ cube_ur_coord(earth_box(ll_to_earth(0,0),112000),2)::numeric(20,5),
+ cube_ur_coord(earth_box(ll_to_earth(0,0),112000),3)::numeric(20,5);
+SELECT cube_ll_coord(earth_box(ll_to_earth(0,0),pi()*earth()),1)::numeric(20,5),
+ cube_ll_coord(earth_box(ll_to_earth(0,0),pi()*earth()),2)::numeric(20,5),
+ cube_ll_coord(earth_box(ll_to_earth(0,0),pi()*earth()),3)::numeric(20,5),
+ cube_ur_coord(earth_box(ll_to_earth(0,0),pi()*earth()),1)::numeric(20,5),
+ cube_ur_coord(earth_box(ll_to_earth(0,0),pi()*earth()),2)::numeric(20,5),
+ cube_ur_coord(earth_box(ll_to_earth(0,0),pi()*earth()),3)::numeric(20,5);
+SELECT cube_ll_coord(earth_box(ll_to_earth(0,0),10*earth()),1)::numeric(20,5),
+ cube_ll_coord(earth_box(ll_to_earth(0,0),10*earth()),2)::numeric(20,5),
+ cube_ll_coord(earth_box(ll_to_earth(0,0),10*earth()),3)::numeric(20,5),
+ cube_ur_coord(earth_box(ll_to_earth(0,0),10*earth()),1)::numeric(20,5),
+ cube_ur_coord(earth_box(ll_to_earth(0,0),10*earth()),2)::numeric(20,5),
+ cube_ur_coord(earth_box(ll_to_earth(0,0),10*earth()),3)::numeric(20,5);
+
+--
+-- Test for points that should be in bounding boxes.
+--
+
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0,1))*1.00001) @>
+ ll_to_earth(0,1);
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0,0.1))*1.00001) @>
+ ll_to_earth(0,0.1);
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0,0.01))*1.00001) @>
+ ll_to_earth(0,0.01);
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0,0.001))*1.00001) @>
+ ll_to_earth(0,0.001);
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0,0.0001))*1.00001) @>
+ ll_to_earth(0,0.0001);
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0.0001,0.0001))*1.00001) @>
+ ll_to_earth(0.0001,0.0001);
+SELECT earth_box(ll_to_earth(45,45),
+ earth_distance(ll_to_earth(45,45),ll_to_earth(45.0001,45.0001))*1.00001) @>
+ ll_to_earth(45.0001,45.0001);
+SELECT earth_box(ll_to_earth(90,180),
+ earth_distance(ll_to_earth(90,180),ll_to_earth(90.0001,180.0001))*1.00001) @>
+ ll_to_earth(90.0001,180.0001);
+
+--
+-- Test for points that shouldn't be in bounding boxes. Note that we need
+-- to make points way outside, since some points close may be in the box
+-- but further away than the distance we are testing.
+--
+
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0,1))*.57735) @>
+ ll_to_earth(0,1);
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0,0.1))*.57735) @>
+ ll_to_earth(0,0.1);
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0,0.01))*.57735) @>
+ ll_to_earth(0,0.01);
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0,0.001))*.57735) @>
+ ll_to_earth(0,0.001);
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0,0.0001))*.57735) @>
+ ll_to_earth(0,0.0001);
+SELECT earth_box(ll_to_earth(0,0),
+ earth_distance(ll_to_earth(0,0),ll_to_earth(0.0001,0.0001))*.57735) @>
+ ll_to_earth(0.0001,0.0001);
+SELECT earth_box(ll_to_earth(45,45),
+ earth_distance(ll_to_earth(45,45),ll_to_earth(45.0001,45.0001))*.57735) @>
+ ll_to_earth(45.0001,45.0001);
+SELECT earth_box(ll_to_earth(90,180),
+ earth_distance(ll_to_earth(90,180),ll_to_earth(90.0001,180.0001))*.57735) @>
+ ll_to_earth(90.0001,180.0001);
+
+--
+-- Test the recommended constraints.
+--
+
+SELECT cube_is_point(ll_to_earth(0,0));
+SELECT cube_dim(ll_to_earth(0,0)) <= 3;
+SELECT abs(cube_distance(ll_to_earth(0,0), '(0)'::cube) / earth() - 1) <
+ '10e-12'::float8;
+SELECT cube_is_point(ll_to_earth(30,60));
+SELECT cube_dim(ll_to_earth(30,60)) <= 3;
+SELECT abs(cube_distance(ll_to_earth(30,60), '(0)'::cube) / earth() - 1) <
+ '10e-12'::float8;
+SELECT cube_is_point(ll_to_earth(60,90));
+SELECT cube_dim(ll_to_earth(60,90)) <= 3;
+SELECT abs(cube_distance(ll_to_earth(60,90), '(0)'::cube) / earth() - 1) <
+ '10e-12'::float8;
+SELECT cube_is_point(ll_to_earth(-30,-90));
+SELECT cube_dim(ll_to_earth(-30,-90)) <= 3;
+SELECT abs(cube_distance(ll_to_earth(-30,-90), '(0)'::cube) / earth() - 1) <
+ '10e-12'::float8;
+
+--
+-- Now we are going to test extension create/drop scenarios.
+--
+
+-- list what's installed
+\dT
+
+drop extension cube; -- fail, earthdistance requires it
+
+drop extension earthdistance;
+
+drop type cube; -- fail, extension cube requires it
+
+-- list what's installed
+\dT
+
+create table foo (f1 cube, f2 int);
+
+drop extension cube; -- fail, foo.f1 requires it
+
+drop table foo;
+
+drop extension cube;
+
+-- list what's installed
+\dT
+\df
+\do
+
+create schema c;
+
+create extension cube with schema c;
+
+-- list what's installed
+\dT public.*
+\df public.*
+\do public.*
+\dT c.*
+
+create table foo (f1 c.cube, f2 int);
+
+drop extension cube; -- fail, foo.f1 requires it
+
+drop schema c; -- fail, cube requires it
+
+drop extension cube cascade;
+
+\d foo
+
+-- list what's installed
+\dT public.*
+\df public.*
+\do public.*
+\dT c.*
+\df c.*
+\do c.*
+
+drop schema c;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 21:59:49 +0000