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Hive >> mail # user >> Use RANK OVER PARTITION function in Hive 0.11


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Re: Use RANK OVER PARTITION function in Hive 0.11
Please send the fnal working queries.

On Friday, July 19, 2013, Jérôme Verdier <[EMAIL PROTECTED]> wrote:
> Hi,
>
> The error is resolved.
>
> I have 3 RANK() function in my script.
>
> 2 are working with arguments, but one is working without arguments.
>
> I don't understand it, but the fact is it's working =)
>
> Thanks everyone for your help.
>
>
> 2013/7/18 Jérôme Verdier <[EMAIL PROTECTED]>
>
> Hi,
>
> Since we saw that we have to give arguments in RANK() function, i'm
trying to translate this one (working on Oracle 10g) to be functionnally in
Hive :
>
> RANK() OVER (PARTITION BY mag.co_magasin, dem.id_produit ORDER BY
pnvente.dt_debut_commercial DESC,
COALESCE(pnvente.id_produit,dem.id_produit) DESC) as rang
>
> i try this :
>
> RANK(pnvente.dt_debut_commercial,
COALESCE(pnvente.id_produit,dem.id_produit)) OVER (PARTITION BY
mag.co_magasin, dem.id_produit ORDER BY pnvente.dt_debut_commercial DESC,
COALESCE(pnvente.id_produit,dem.id_produit) DESC) as rang
>
> and this :
>
>
> RANK(pnvente.dt_debut_commercial, pnvente.id_produit, dem.id_produit)
OVER (PARTITION BY mag.co_magasin, dem.id_produit ORDER BY
pnvente.dt_debut_commercial DESC,
COALESCE(pnvente.id_produit,dem.id_produit) DESC) as rang
>
> But Hive is giving me another error :
>
> FAILED: SemanticException Failed to breakup Windowing invocations into
Groups. At least 1 group must only depend on input columns. Also check for
circular dependencies.
> Underlying error: Ranking Functions can take no arguments
>
> i don't understand this error, in the first try, he said that he can't
work without arguments, and now, rank function is falling because of the
arguments.
>
> what is wrong now ?
>
>
>
> 2013/7/17 Richa Sharma <[EMAIL PROTECTED]>
>
> my bad ... in relational databases we generally do not give a column name
inside rank() ... but the one in (partition by .... order by..) is
sufficient.
> But looks like that's not the case in Hive
>
> Jerome,
> Please look at the examples in link below. See if you are able to make it
work
>
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+WindowingAndAnalytics#LanguageManualWindowingAndAnalytics-PARTITIONBYwithpartitioning%2CORDERBY%2Candwindowspecification

>
>
> Cant help you beyond this as i don't have Hive 0.11 :-(
>
> Richa
>
> On Wed, Jul 17, 2013 at 3:08 PM, Jérôme Verdier <
[EMAIL PROTECTED]> wrote:
>
> Hi Richa,
>
> I have tried one query, with what i've understand of  Vijay's tips.
>
> SELECT code_entite, RANK(mag.me_vente_ht) OVER (PARTITION BY
mag.co_societe ORDER BY  mag.me_vente_ht) AS rank FROM
default.thm_renta_rgrp_produits_n_1 mag;
>
> This query is working, it gives me results.
>
> You say that maybe i'm hitting the same bug of JIRA HIVE-4663, but query
is also failling when i put analytical columns in...
>
>
> 2013/7/17 Richa Sharma <[EMAIL PROTECTED]>
>
> Vijay
> Jerome has already passed column -