N1ql-> IN运算符不适用于其他条件 [英] N1ql -> IN operator does not work with other conditions
问题描述
仅使用IN运算符时，以下查询可以正常工作
SELECT META（）。id FROM bucket_name WHERE description IN ['Item1'，'Item2']
The following query works just fine when only IN operator is used
SELECT META().id FROM bucket_name WHERE description IN ['Item1','Item2']
但是当我触发该查询时，它给我一个空白结果
SELECT META（）。 id FROM bucket_name WHERE id = 123 AND description in ['Item1'，'Item2']
But when I fire this query it gives me a blank result
SELECT META().id FROM bucket_name WHERE id = 123 AND description IN ['Item1','Item2']
我做错了什么吗？遇到相同的问题？
Am I doing something wrong or somebody else has faced the same problem?
推荐答案
我认为您必须将 IN条件放在括号中才能起作用：
I think you have to take your "IN" condition into parenthesis to make it work:
SELECT META().id FROM bucket_name WHERE id = 123 AND (description IN ['Item1','Item2'])
如果使用< href = http://docs.couchbase.com/couchbase-query-language-0.1/#explain rel = noreferrer> EXPLAIN 关键字，它将显示它如何相互链接条件。
If you run it with EXPLAIN keyword it will show how it links conditions against each other.
例如
explain SELECT META().id FROM bucket_name WHERE id = 123 AND (description IN ['Item1','Item2'])
vs
explain SELECT META().id FROM bucket_name WHERE id = 123 AND description IN ['Item1','Item2']
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