我需要在Postgres数据库中插入/更新一个点列类型。
我正在使用node-postgres
使用POSTGRES管理面板生成的脚本显示更新查询为
UPDATE public.places SET id=?, user_id=?, business_name=?, alternate_name=?, primary_category=?, categories=?, description=?, address=?, city=?, state=?, country=?, zip=?, point WHERE <condition>;
如何从纬度和经度获取point?
我看过一些使用POSTGIS的答案,但无法使其工作。
在POSTGRES的文档(https://www.postgresql.org/docs/9.2/static/xfunc-sql.html)中提到我们可以使用 point '(2,1)'
,但是这在pg查询中不起作用。
现在我的问题是:
var config = {
user: 'postgres',
database: 'PGDATABASE',
password: 'PGPASSWORD!',
host: 'localhost',
port: 5432,
max: 10,
idleTimeoutMillis: 30000
};
更新部分:
app.post('/updatePlaces', function(req, res, next) {
console.log("Update");
console.log(req.body.places);
pool.query('UPDATE places SET address = $1, alternate_name = $2, business_name = $3, categories = $4, city = $5, country = $6, description = $7, point = $8, primary_category = $9, state = $10, zip = $11', [req.body.places.address, req.body.places.alternate_name, req.body.places.business_name, req.body.places.categories, req.body.places.city, req.body.places.country, req.body.places.description, (req.body.places.point.x, req.body.places.point.y), req.body.places.primary_category, req.body.places.state, req.body.places.zip], function(err, result) {
if(err) {
console.log(err);
return err;
}
res.send(result.rows[0]);
});
});
尝试了多种不同的方式来通过点:
- (req.body.places.point.x, req.body.places.point.y)
- point(req.body.places.point.x, req.body.places.point.y)
- point '(2,1)'
以上所有方法都会抛出错误。我需要使用POSTGIS吗?