WHERE product_name IS NOT NULL AND product_name <> '' On Tue, Mar 9, 2010 at 12:45 AM, prakash sejwani <prakashsejw...@gmail.com> wrote: > yes right can you give me a tip how to exclude blank values > > On Tue, Mar 9, 2010 at 2:13 PM, Zheng Shao <zsh...@gmail.com> wrote: >> >> So I guess you didn't exclude the Blank ones? >> >> On Tue, Mar 9, 2010 at 12:41 AM, prakash sejwani >> <prakashsejw...@gmail.com> wrote: >> > yes, regexp_extract return NULL or Blank >> > >> > On Tue, Mar 9, 2010 at 2:05 PM, Zheng Shao <zsh...@gmail.com> wrote: >> >> >> >> What do you mean by "product_name" is "present"? >> >> If it is not present, does the regexp_extract return NULL? >> >> >> >> Zheng >> >> >> >> On Tue, Mar 9, 2010 at 12:13 AM, prakash sejwani >> >> <prakashsejw...@gmail.com> wrote: >> >> > Hi all, >> >> > I have a query below >> >> > >> >> > FROM ( >> >> > SELECT h.* >> >> > FROM ( >> >> > -- Pull from the access_log >> >> > SELECT ip, >> >> > -- Reformat the time from the access log >> >> > time, dt, >> >> > --method, resource, protocol, status, length, referer, agent, >> >> > -- Extract the product_id for the hit from the URL >> >> > cast( regexp_extract(resource,'\&q=([^\&]+)', 1) AS STRING) >> >> > AS >> >> > product_name >> >> > FROM a_log >> >> > ) h >> >> > )hit >> >> > -- Insert the hit data into a seperate search table >> >> > INSERT OVERWRITE TABLE search >> >> > SELECT ip, time, dt, >> >> > product_name >> >> > WHERE product_name IS NOT NULL; >> >> > >> >> > >> >> > it suppose to populate the search table with only if product_name is >> >> > present >> >> > but i get all of it.. >> >> > >> >> > any help would be appreciated >> >> > >> >> > thanks >> >> > prakash sejwani >> >> > econify infotech >> >> > mumbai >> >> > >> >> >> >> >> >> >> >> -- >> >> Yours, >> >> Zheng >> > >> > >> >> >> >> -- >> Yours, >> Zheng > >
-- Yours, Zheng
