我不确定如何在2dslice中的postgres查询中(col1,col2)
我尝试了以下方法:
`
CREATE TABLE table2 (
id CHAR(27) NOT NULL,
lat FLOAT8 NOT NULL,
lon FLOAT8 NOT NULL,
PRIMARY KEY (id)
);
latlongdata := [][]float64{}
latlongdata = append(latlongdata, []float64{1.2, 2.3},)
latlongdata = append(latlongdata, []float64{1.3, 2.4},)
......................................
latlongdata = append(latlongdata, []float64{1.4, 2.5},)
fmt.Println(latlongdata)// prints [[1.2 2.3] [1.3 2.4] ....... [1.4 2.5]] (very long array)
Query: r.db.QueryContext(ctx,("SELECT id, lat, lon FROM table2 WHERE (lat, lon) IN $1", latlongdata,)
`
您能建议如何做吗?
答案 0 :(得分:0)
Query: r.db.QueryContext(ctx,("SELECT id, lat, long FROM table2 WHERE lat, long IN (select $1, $2 union select $3, $4)", latlongdata[0][0], latlongdata[0][1], latlongdata[1][0], latlongdata[1][1])
或创建latlongdata
并将其插入到临时表中
然后
WHERE lat, long IN (select filed1, field2 from temptable)