我有以下查询postgress db
SELECT id,
address,
dblong,
dblat,
111* DEGREES(ACOS(COS(RADIANS(latpoint)) * COS(RADIANS(dblat)) *
COS(RADIANS(longpoint) - RADIANS(dblong)) +
SIN(RADIANS(latpoint)) * SIN(RADIANS(dblat)))) AS distance_in_km
FROM
(SELECT id,
address,
MAX(longitude) AS dblong,
MAX(latitude) AS dblat
FROM doorbots
WHERE created_at > '%s' AND created_at < '%s'
GROUP BY 1) AS s
JOIN
(SELECT %s AS latpoint, %s AS longpoint) AS p ON 1=1
WHERE distance_in_km < %s
GROUP BY 1;
我不明白如何解决以下错误:
column "distance_in_km" does not exist
?
答案 0 :(得分:2)
应该有效:
with q as (
SELECT id,
address,
dblong,
dblat,
111* DEGREES(ACOS(COS(RADIANS(latpoint)) * COS(RADIANS(dblat)) *
COS(RADIANS(longpoint) - RADIANS(dblong)) +
SIN(RADIANS(latpoint)) * SIN(RADIANS(dblat)))) AS distance_in_km
FROM
(SELECT id,
address,
MAX(longitude) AS dblong,
MAX(latitude) AS dblat
FROM doorbots
WHERE created_at > '%s' AND created_at < '%s'
GROUP BY 1) AS s
JOIN
(SELECT %s AS latpoint, %s AS longpoint) AS p ON 1=1
)
select * from q
WHERE distance_in_km < %s
GROUP BY 1;