【postgis】添加geometry类型字段

创建一张测试表

CREATE TABLE test1(
  id int4,
  name varchar(255)
)
> NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'id' as the Greenplum Database data distribution key for this table.
  HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
  
  
> 时间: 0.246s

增加geometry类型字段

SELECT AddGeometryColumn ('test1', 'the_geom', 4326, 'POINT', 2);

插入数据

INSERT INTO test1 (id, the_geom, name) VALUES (1,ST_GeomFromText('POINT(-0.1257 51.508)',4326),'London, England');
INSERT INTO test1 (id, the_geom, name) VALUES (2,ST_GeomFromText('POINT(-81.233 42.983)',4326),'London, Ontario');
INSERT INTO test1 (id, the_geom, name) VALUES (3,ST_GeomFromText('POINT(27.91162491 -33.01529)',4326),'East London,SA');