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postgresql/contrib/earthdistance/expected/earthdistance.out
Bruce Momjian 4c1383efd1 The attached patch defines functions for getting distances between 
points on the surface of the earth and locating points within a
specified distance using an index based on the contrib/cube package. The
new functions are all of language type sql. A couple of bugs in the old
earthdistance function based on the point datatype are fixed. A
regression test has been added for both sets of functions. The README
file has been updated to include documentation on the new stuff. There
are comments about how this package is also useful for Astronomers.

Bruno Wolff III
2002-11-08 20:20:22 +00:00

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--
-- Test earth distance functions
--
--
-- first, define the datatype. Turn off echoing so that expected file
-- does not depend on contents of earthdistance.sql or cube.sql.
--
\set ECHO none
psql:../cube/cube.sql:12: NOTICE: ProcedureCreate: type cube is not yet defined
psql:../cube/cube.sql:17: NOTICE: Argument type "cube" is only a shell
--
-- The radius of the Earth we are using.
--
select earth()::numeric(20,5);
earth
---------------
6378168.00000
(1 row)
--
-- Convert straight line distances to great circle distances.
--
select (pi()*earth())::numeric(20,5);
numeric
----------------
20037605.73216
(1 row)
select sec_to_gc(0)::numeric(20,5);
sec_to_gc
-----------
0.00000
(1 row)
select sec_to_gc(2*earth())::numeric(20,5);
sec_to_gc
----------------
20037605.73216
(1 row)
select sec_to_gc(10*earth())::numeric(20,5);
sec_to_gc
----------------
20037605.73216
(1 row)
select sec_to_gc(-earth())::numeric(20,5);
sec_to_gc
-----------
0.00000
(1 row)
select sec_to_gc(1000)::numeric(20,5);
sec_to_gc
------------
1000.00000
(1 row)
select sec_to_gc(10000)::numeric(20,5);
sec_to_gc
-------------
10000.00102
(1 row)
select sec_to_gc(100000)::numeric(20,5);
sec_to_gc
--------------
100001.02426
(1 row)
select sec_to_gc(1000000)::numeric(20,5);
sec_to_gc
---------------
1001027.07131
(1 row)
--
-- Convert great circle distances to straight line distances.
--
select gc_to_sec(0)::numeric(20,5);
gc_to_sec
-----------
0.00000
(1 row)
select gc_to_sec(sec_to_gc(2*earth()))::numeric(20,5);
gc_to_sec
----------------
12756336.00000
(1 row)
select gc_to_sec(10*earth())::numeric(20,5);
gc_to_sec
----------------
12756336.00000
(1 row)
select gc_to_sec(pi()*earth())::numeric(20,5);
gc_to_sec
----------------
12756336.00000
(1 row)
select gc_to_sec(-1000)::numeric(20,5);
gc_to_sec
-----------
0.00000
(1 row)
select gc_to_sec(1000)::numeric(20,5);
gc_to_sec
------------
1000.00000
(1 row)
select gc_to_sec(10000)::numeric(20,5);
gc_to_sec
------------
9999.99898
(1 row)
select gc_to_sec(100000)::numeric(20,5);
gc_to_sec
-------------
99998.97577
(1 row)
select gc_to_sec(1000000)::numeric(20,5);
gc_to_sec
--------------
998976.08618
(1 row)
--
-- 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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
---------------+---------------+---------------
6378168.00000 | 0.00000 | 0.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
---------------+---------------+---------------
6378168.00000 | 0.00000 | 0.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
---------------+---------------+---------------
6378168.00000 | 0.00000 | 0.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
----------------+---------------+---------------
-6378168.00000 | 0.00000 | 0.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
----------------+---------------+---------------
-6378168.00000 | 0.00000 | 0.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
----------------+---------------+---------------
-6378168.00000 | 0.00000 | 0.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
----------------+---------------+---------------
-6378168.00000 | 0.00000 | 0.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
---------------+---------------+---------------
0.00000 | 0.00000 | 6378168.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
---------------+---------------+---------------
0.00000 | 0.00000 | 6378168.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
---------------+---------------+----------------
0.00000 | 0.00000 | -6378168.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord
---------------+---------------+----------------
0.00000 | 0.00000 | -6378168.00000
(1 row)
--
-- Test getting the latitude of a location.
--
select latitude(ll_to_earth(0,0))::numeric(20,10);
latitude
--------------
0.0000000000
(1 row)
select latitude(ll_to_earth(45,0))::numeric(20,10);
latitude
---------------
45.0000000000
(1 row)
select latitude(ll_to_earth(90,0))::numeric(20,10);
latitude
---------------
90.0000000000
(1 row)
select latitude(ll_to_earth(-45,0))::numeric(20,10);
latitude
----------------
-45.0000000000
(1 row)
select latitude(ll_to_earth(-90,0))::numeric(20,10);
latitude
----------------
-90.0000000000
(1 row)
select latitude(ll_to_earth(0,90))::numeric(20,10);
latitude
--------------
0.0000000000
(1 row)
select latitude(ll_to_earth(45,90))::numeric(20,10);
latitude
---------------
45.0000000000
(1 row)
select latitude(ll_to_earth(90,90))::numeric(20,10);
latitude
---------------
90.0000000000
(1 row)
select latitude(ll_to_earth(-45,90))::numeric(20,10);
latitude
----------------
-45.0000000000
(1 row)
select latitude(ll_to_earth(-90,90))::numeric(20,10);
latitude
----------------
-90.0000000000
(1 row)
select latitude(ll_to_earth(0,180))::numeric(20,10);
latitude
--------------
0.0000000000
(1 row)
select latitude(ll_to_earth(45,180))::numeric(20,10);
latitude
---------------
45.0000000000
(1 row)
select latitude(ll_to_earth(90,180))::numeric(20,10);
latitude
---------------
90.0000000000
(1 row)
select latitude(ll_to_earth(-45,180))::numeric(20,10);
latitude
----------------
-45.0000000000
(1 row)
select latitude(ll_to_earth(-90,180))::numeric(20,10);
latitude
----------------
-90.0000000000
(1 row)
select latitude(ll_to_earth(0,-90))::numeric(20,10);
latitude
--------------
0.0000000000
(1 row)
select latitude(ll_to_earth(45,-90))::numeric(20,10);
latitude
---------------
45.0000000000
(1 row)
select latitude(ll_to_earth(90,-90))::numeric(20,10);
latitude
---------------
90.0000000000
(1 row)
select latitude(ll_to_earth(-45,-90))::numeric(20,10);
latitude
----------------
-45.0000000000
(1 row)
select latitude(ll_to_earth(-90,-90))::numeric(20,10);
latitude
----------------
-90.0000000000
(1 row)
--
-- Test getting the longitude of a location.
--
select longitude(ll_to_earth(0,0))::numeric(20,10);
longitude
--------------
0.0000000000
(1 row)
select longitude(ll_to_earth(45,0))::numeric(20,10);
longitude
--------------
0.0000000000
(1 row)
select longitude(ll_to_earth(90,0))::numeric(20,10);
longitude
--------------
0.0000000000
(1 row)
select longitude(ll_to_earth(-45,0))::numeric(20,10);
longitude
--------------
0.0000000000
(1 row)
select longitude(ll_to_earth(-90,0))::numeric(20,10);
longitude
--------------
0.0000000000
(1 row)
select longitude(ll_to_earth(0,90))::numeric(20,10);
longitude
---------------
90.0000000000
(1 row)
select longitude(ll_to_earth(45,90))::numeric(20,10);
longitude
---------------
90.0000000000
(1 row)
select longitude(ll_to_earth(90,90))::numeric(20,10);
longitude
---------------
90.0000000000
(1 row)
select longitude(ll_to_earth(-45,90))::numeric(20,10);
longitude
---------------
90.0000000000
(1 row)
select longitude(ll_to_earth(-90,90))::numeric(20,10);
longitude
---------------
90.0000000000
(1 row)
select longitude(ll_to_earth(0,180))::numeric(20,10);
longitude
----------------
180.0000000000
(1 row)
select longitude(ll_to_earth(45,180))::numeric(20,10);
longitude
----------------
180.0000000000
(1 row)
select longitude(ll_to_earth(90,180))::numeric(20,10);
longitude
----------------
180.0000000000
(1 row)
select longitude(ll_to_earth(-45,180))::numeric(20,10);
longitude
----------------
180.0000000000
(1 row)
select longitude(ll_to_earth(-90,180))::numeric(20,10);
longitude
----------------
180.0000000000
(1 row)
select longitude(ll_to_earth(0,-90))::numeric(20,10);
longitude
----------------
-90.0000000000
(1 row)
select longitude(ll_to_earth(45,-90))::numeric(20,10);
longitude
----------------
-90.0000000000
(1 row)
select longitude(ll_to_earth(90,-90))::numeric(20,10);
longitude
----------------
-90.0000000000
(1 row)
select longitude(ll_to_earth(-45,-90))::numeric(20,10);
longitude
----------------
-90.0000000000
(1 row)
select longitude(ll_to_earth(-90,-90))::numeric(20,10);
longitude
----------------
-90.0000000000
(1 row)
--
-- 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);
earth_distance
----------------
0.00000
(1 row)
select earth_distance(ll_to_earth(0,0),ll_to_earth(0,180))::numeric(20,5);
earth_distance
----------------
20037605.73216
(1 row)
select earth_distance(ll_to_earth(0,0),ll_to_earth(90,0))::numeric(20,5);
earth_distance
----------------
10018802.86608
(1 row)
select earth_distance(ll_to_earth(0,0),ll_to_earth(0,90))::numeric(20,5);
earth_distance
----------------
10018802.86608
(1 row)
select earth_distance(ll_to_earth(0,0),ll_to_earth(0,1))::numeric(20,5);
earth_distance
----------------
111320.03185
(1 row)
select earth_distance(ll_to_earth(0,0),ll_to_earth(1,0))::numeric(20,5);
earth_distance
----------------
111320.03185
(1 row)
select earth_distance(ll_to_earth(30,0),ll_to_earth(30,1))::numeric(20,5);
earth_distance
----------------
96405.66962
(1 row)
select earth_distance(ll_to_earth(30,0),ll_to_earth(31,0))::numeric(20,5);
earth_distance
----------------
111320.03185
(1 row)
select earth_distance(ll_to_earth(60,0),ll_to_earth(60,1))::numeric(20,5);
earth_distance
----------------
55659.48608
(1 row)
select earth_distance(ll_to_earth(60,0),ll_to_earth(61,0))::numeric(20,5);
earth_distance
----------------
111320.03185
(1 row)
select earth_distance(ll_to_earth(41.8,87.6),ll_to_earth(35.1,106.7))::numeric(20,5);
earth_distance
----------------
1819303.21265
(1 row)
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);
numeric
------------
1130.46261
(1 row)
--
-- Test getting the distance between two points using geo_distance.
--
select geo_distance('(0,0)'::point,'(0,0)'::point)::numeric(20,5);
geo_distance
--------------
0.00000
(1 row)
select geo_distance('(0,0)'::point,'(180,0)'::point)::numeric(20,5);
geo_distance
--------------
12436.77274
(1 row)
select geo_distance('(0,0)'::point,'(0,90)'::point)::numeric(20,5);
geo_distance
--------------
6218.38637
(1 row)
select geo_distance('(0,0)'::point,'(90,0)'::point)::numeric(20,5);
geo_distance
--------------
6218.38637
(1 row)
select geo_distance('(0,0)'::point,'(1,0)'::point)::numeric(20,5);
geo_distance
--------------
69.09318
(1 row)
select geo_distance('(0,0)'::point,'(0,1)'::point)::numeric(20,5);
geo_distance
--------------
69.09318
(1 row)
select geo_distance('(0,30)'::point,'(1,30)'::point)::numeric(20,5);
geo_distance
--------------
59.83626
(1 row)
select geo_distance('(0,30)'::point,'(0,31)'::point)::numeric(20,5);
geo_distance
--------------
69.09318
(1 row)
select geo_distance('(0,60)'::point,'(1,60)'::point)::numeric(20,5);
geo_distance
--------------
34.54626
(1 row)
select geo_distance('(0,60)'::point,'(0,61)'::point)::numeric(20,5);
geo_distance
--------------
69.09318
(1 row)
select geo_distance('(87.6,41.8)'::point,'(106.7,35.1)'::point)::numeric(20,5);
geo_distance
--------------
1129.18983
(1 row)
select (geo_distance('(87.6,41.8)'::point,'(106.7,35.1)'::point)*5280.*12.*2.54/100.)::numeric(20,5);
numeric
---------------
1817254.87730
(1 row)
--
-- Test getting the distance between two points using the <@> operator.
--
select ('(0,0)'::point <@> '(0,0)'::point)::numeric(20,5);
numeric
---------
0.00000
(1 row)
select ('(0,0)'::point <@> '(180,0)'::point)::numeric(20,5);
numeric
-------------
12436.77274
(1 row)
select ('(0,0)'::point <@> '(0,90)'::point)::numeric(20,5);
numeric
------------
6218.38637
(1 row)
select ('(0,0)'::point <@> '(90,0)'::point)::numeric(20,5);
numeric
------------
6218.38637
(1 row)
select ('(0,0)'::point <@> '(1,0)'::point)::numeric(20,5);
numeric
----------
69.09318
(1 row)
select ('(0,0)'::point <@> '(0,1)'::point)::numeric(20,5);
numeric
----------
69.09318
(1 row)
select ('(0,30)'::point <@> '(1,30)'::point)::numeric(20,5);
numeric
----------
59.83626
(1 row)
select ('(0,30)'::point <@> '(0,31)'::point)::numeric(20,5);
numeric
----------
69.09318
(1 row)
select ('(0,60)'::point <@> '(1,60)'::point)::numeric(20,5);
numeric
----------
34.54626
(1 row)
select ('(0,60)'::point <@> '(0,61)'::point)::numeric(20,5);
numeric
----------
69.09318
(1 row)
select ('(87.6,41.8)'::point <@> '(106.7,35.1)'::point)::numeric(20,5);
numeric
------------
1129.18983
(1 row)
select (('(87.6,41.8)'::point <@> '(106.7,35.1)'::point)*5280.*12.*2.54/100.)::numeric(20,5);
numeric
---------------
1817254.87730
(1 row)
--
-- 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);
cube_ll_coord | cube_ll_coord | cube_ll_coord | cube_ur_coord | cube_ur_coord | cube_ur_coord
---------------+---------------+---------------+---------------+---------------+---------------
6266169.43896 | -111998.56104 | -111998.56104 | 6490166.56104 | 111998.56104 | 111998.56104
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord | cube_ur_coord | cube_ur_coord | cube_ur_coord
----------------+-----------------+-----------------+----------------+----------------+----------------
-6378168.00000 | -12756336.00000 | -12756336.00000 | 19134504.00000 | 12756336.00000 | 12756336.00000
(1 row)
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);
cube_ll_coord | cube_ll_coord | cube_ll_coord | cube_ur_coord | cube_ur_coord | cube_ur_coord
----------------+-----------------+-----------------+----------------+----------------+----------------
-6378168.00000 | -12756336.00000 | -12756336.00000 | 19134504.00000 | 12756336.00000 | 12756336.00000
(1 row)
--
-- 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);
?column?
----------
t
(1 row)
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);
?column?
----------
t
(1 row)
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);
?column?
----------
t
(1 row)
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);
?column?
----------
t
(1 row)
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);
?column?
----------
t
(1 row)
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);
?column?
----------
t
(1 row)
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);
?column?
----------
t
(1 row)
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);
?column?
----------
t
(1 row)
--
-- 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);
?column?
----------
f
(1 row)
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);
?column?
----------
f
(1 row)
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);
?column?
----------
f
(1 row)
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);
?column?
----------
f
(1 row)
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);
?column?
----------
f
(1 row)
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);
?column?
----------
f
(1 row)
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);
?column?
----------
f
(1 row)
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);
?column?
----------
f
(1 row)
--
-- Test the recommended constraints.
--
select is_point(ll_to_earth(0,0));
ERROR: Function is_point(earth) does not exist
Unable to identify a function that satisfies the given argument types
You may need to add explicit typecasts
select cube_dim(ll_to_earth(0,0)) <= 3;
?column?
----------
t
(1 row)
select abs(cube_distance(ll_to_earth(0,0), '(0)'::cube) / earth() - 1) <
'10e-12'::float8;
?column?
----------
t
(1 row)
select is_point(ll_to_earth(30,60));
ERROR: Function is_point(earth) does not exist
Unable to identify a function that satisfies the given argument types
You may need to add explicit typecasts
select cube_dim(ll_to_earth(30,60)) <= 3;
?column?
----------
t
(1 row)
select abs(cube_distance(ll_to_earth(30,60), '(0)'::cube) / earth() - 1) <
'10e-12'::float8;
?column?
----------
t
(1 row)
select is_point(ll_to_earth(60,90));
ERROR: Function is_point(earth) does not exist
Unable to identify a function that satisfies the given argument types
You may need to add explicit typecasts
select cube_dim(ll_to_earth(60,90)) <= 3;
?column?
----------
t
(1 row)
select abs(cube_distance(ll_to_earth(60,90), '(0)'::cube) / earth() - 1) <
'10e-12'::float8;
?column?
----------
t
(1 row)
select is_point(ll_to_earth(-30,-90));
ERROR: Function is_point(earth) does not exist
Unable to identify a function that satisfies the given argument types
You may need to add explicit typecasts
select cube_dim(ll_to_earth(-30,-90)) <= 3;
?column?
----------
t
(1 row)
select abs(cube_distance(ll_to_earth(-30,-90), '(0)'::cube) / earth() - 1) <
'10e-12'::float8;
?column?
----------
t
(1 row)
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