Hi Mohit,
Hive doesn’t support correlated subqueries. In this instance, you can do a
left outer join to find values that are not in a table.
SELECT
“”,
a.pagename,
a.pagedetail,
“”,
a.pagetitle,
a.page_id,
a.pagetype
FROM page_temp_ext a
LEFT OUTER JOIN page_temp b ON
a.pagename = b.pagename AND
a.pagetitle = b.pagetitle AND
a.page_id = b.pageid AND
a.pagetype = b.pagetype
WHERE
b.pagename IS NULL
Hope that helps,
Matt
On Mon, Oct 1, 2012 at 4:42 PM, Mohit Anchlia <mohitanch...@gmail.com
> wrote:
> Could someone help me understand what alternative do I have for this
> query? I am trying to check if a given row exists in the table.
>
> select "",a.pagename,a.pagedetail,"",a.pagetitle,a.page_id,a.pagetype
> from page_temp_ext a
> where 0 = (select count(*) from page_temp b where a.pagename = b.pagename
> and a.pagetitle = b.pagetitle and a.page_id = b.pageid and a.pagetype =
> b.pagetype);
>
