我使用的是蜂巢1.1
hive> select country from releases limit 1;
OK
["us","ca","fr"]
目前，国家在 hive 中是字符串类型。如何将其转换为数组[String]？
我尝试了下面的方法，但它抛出错误
hive> select country, cast(country as Array[String]) from releases limit 1;
FAILED: ParseException line 1:48 cannot recognize input near 'Array' '[' 'String' in primitive type specification
有人可以帮我做打字吗？
hive> with releases as (select '["us","ca","fr"]' as country)
> select split(regexp_extract(country,'^\\["(.*)\\"]$',1),'","')
> from releases
> ;
OK
_c0
["us","ca","fr"]
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