PostGIS 测试 - 线（LINESTRING）

1.建表

CREATE TABLE linetable ( 
  id SERIAL PRIMARY KEY,
  name VARCHAR(128),
   geom GEOMETRY(LINESTRING, 26910)
);

2.添加GIST索引

CREATE INDEX linetable_gix  ON linetable USING GIST (geom); 

3.插入数据

INSERT INTO linetable (name, geom) VALUES ('L1',
  ST_GeomFromText('LINESTRING(0 0,1 1,1 2)', 26910)
);

INSERT INTO linetable (name, geom) VALUES ('L2',
  ST_GeomFromText('LINESTRING(1 0,2 1,2 2)', 26910)
);

4.QGIS中显示几何数据