Hortonworks has announced plans to make Hive more SQL compliant. I suspect bugs like this will be addressed sooner or later. It will be necessary to handle backwards compatibility, but that could be handled with a hive property that enables one or the other behaviors.
On Fri, May 24, 2013 at 8:07 AM, John Omernik <j...@omernik.com> wrote: > I have mentioned this before, and I think this a big miss by the Hive > team. Like, by default in many SQL RDBMS (like MSSQL or MYSQL) is not > case sensitive. Thus when you have new users moving over to Hive, if they > see a command like "like" they will assume similarity (like many other SQL > like qualities) and thus false negatives may ensue. Even though it's > different by default (I am ok with this ... I guess, my personal preference > is that it matches the defaults on other systems, and outside of that > (which I am, in in the end fine with, just grumbly :) ) give us the ability > to set that behavior in the hive-site.xml. That way when an org realizes > that it is different, and their users are all getting false negatives, they > can just update the hive-site and fix the problem rather than have to > include it in training that may or may not work. I've added this comment > to https://issues.apache.org/jira/browse/HIVE-4070#comment-13666278 for > fun. :) > > Please? :) > > > > > On Fri, May 24, 2013 at 7:53 AM, Dean Wampler <deanwamp...@gmail.com>wrote: > >> Your where clause looks at the abbreviation, requiring 'A', not the state >> name. You got the correct answer. >> >> >> On Fri, May 24, 2013 at 6:21 AM, Sai Sai <saigr...@yahoo.in> wrote: >> >>> But it should get more results for this: >>> >>> %a% >>> >>> than for >>> >>> %A% >>> >>> Please let me know if i am missing something. >>> Thanks >>> Sai >>> >>> >>> ------------------------------ >>> *From:* Jov <am...@amutu.com> >>> *To:* user@hive.apache.org; Sai Sai <saigr...@yahoo.in> >>> *Sent:* Friday, 24 May 2013 4:39 PM >>> *Subject:* Re: Difference between like %A% and %a% >>> >>> >>> 2013/5/24 Sai Sai <saigr...@yahoo.in> >>> >>> abbreviation l >>> >>> >>> unlike MySQL, string in Hive is case sensitiveļ¼so '%A%' is not equal >>> with '%a%'. >>> >>> >>> -- >>> Jov >>> blog: http:amutu.com/blog <http://amutu.com/blog> >>> >>> >>> >> >> >> -- >> Dean Wampler, Ph.D. >> @deanwampler >> http://polyglotprogramming.com >> > > -- Dean Wampler, Ph.D. @deanwampler http://polyglotprogramming.com
