在cqlsh中我可以执行类似:
的操作SELECT id FROM names WHERE name = 'dave' AND id > maxTimeuuid('2015-04-05 00:05') AND id < minTimeuuid('2019-01-01 00:05');
...这会按预期返回一个列表。
id
--------------------------------------
632f4960-375b-11e8-90b1-02420a000203
91f03523-3761-11e8-a777-02420a000a05
32dbffc4-3762-11e8-a778-02420a000a05
9ffb1ab8-3762-11e8-a779-02420a000a05
c28a0372-3764-11e8-a77b-02420a000a05
但是我很难在gocql中使用它:
var found bool = false
m := map[string]interface{}{}
qString := "SELECT id FROM names WHERE name=? AND id > maxTimeuuid(?) AND id < minTimeuuid(?);"
query := Cassandra.Sessionds.Query(qString, name, toFrom.From, toFrom.To).Consistency(gocql.One)
fmt.Println("sending IsRunning query: " + query.String())
iterable := query.Iter()
for iterable.MapScan(m) {
found = true
lookupTable = HostLookup {
Id: m["id"].(gocql.UUID),
}
}
即使调试行看起来不错,
sending IsRunning query: [query statement="SELECT id FROM names WHERE name=? AND id > maxTimeuuid(?) AND id < minTimeuuid(?);" values=[dave 2015-04-05 00:05 2019-01-01 00:05] consistency=ONE]
...我总是以一个空的可迭代结束。我在其他地方使用非常相似的代码,这里的区别是timeuuid函数。我已尝试用字面引号进行各种安排无济于事,任何建议都表示赞赏。
答案 0 :(得分:0)