亚马逊雅典娜创建带有分区的请求

Question

我创建一个具有如下分区的表：首先按年，月和日。

问题：我希望获得12/2017和03/2018的数据，我该怎么做？ 我的想法：

where (year='2017' and month='12') and ( year ='2018' and month='03')

对吗？我不会感到困惑，因此Amazon Athena可以获取以下数据：

12/2017 and 03/2018 and 03/2017 and 12/2018 

由于和运算符？

PS：我无法测试，我只有免费帐户。 谢谢。

Answer 1

无论如何，我尝试了一组小型数据，但发现Amazon Athena考虑了括号。

我的测试如下：  表的DDl如已定标：

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我的一组数据测试：

我的测试：

1- CREATE EXTERNAL TABLE `manyands`( `years` int COMMENT 'from deserializer', `months` int COMMENT 'from deserializer', `days` int COMMENT 'from deserializer') PARTITIONED BY ( `year` string, `month` string) ROW FORMAT SERDE 'org.openx.data.jsonserde.JsonSerDe' STORED AS INPUTFORMAT 'org.apache.hadoop.mapred.TextInputFormat' OUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.IgnoreKeyTextOutputFormat' LOCATION 's3://mybucket/' 我采用CSV格式：

SELECT * FROM "atlasdatabase"."manyands" where month='1';

2- "years","months","days","year","month" "2017","1","21","2017","1" "2018","1","81","2018","1"

SELECT * FROM "atlasdatabase"."manyands" where month='1' and year='2017';

3- "years","months","days","year","month" "2017","1","21","2017","1"

SELECT * FROM "atlasdatabase"."manyands" where (month='1'  and year='2018') and (month='3'  and year='2017') ;

4- empty (Zéro enregistrements renvoyés)

SELECT * FROM "atlasdatabase"."manyands" where (month='1'  and year='2018') or (month='3' ) ;

结论：在分区的许多实例之间添加 OR 运算符。