I have seen this but it does not work on my data.
I have this data:
1, John, a@com;b@com2,32
2, Jack, ab@com;c@com2,33
and loaded them to hive by:
create table t7(id int,name string, email Array<string>, age int)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
COLLECTION items terminated by ';'
STORED AS textfile;
Load data inpath '/user/maria_dev/7.txt' into table t7;
and the select output
but I cannot search specific value whithin the array
So, what am I missing?
The reason that yours does not work is that you have whitespace before the first element so you have to use trim
select * from t7 where trim(email[0]) like "%a@%";
CREATE TABLE `t7`(
`id` int,
`name` string,
`email` array<string>,
`age` int)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
COLLECTION ITEMS TERMINATED BY '\;'
hive> select * from t7 where trim(email[0])="a@com";
OK
1 John [" a@com","b@com2"] 32
hive> select * from t7 LATERAL VIEW explode(email) exploded_table as id_email where id_email like "%com2%";
OK
1 John [" a@com","b@com2"] 32 b@com2
2 Jack [" ab@com","c@com2"] 33 c@com2
