Hi, Renato, I will open a jira to comment there :) Thanks!
Regards, Alfonso 2014-10-27 20:38 GMT+01:00 Renato Marroquín Mogrovejo < [email protected]>: > Hi Alfonso, > > You are right, the array can not be shrinked at the moment and yes, it is > wrong having to write the whole array back if you just want to change a > single element. > The column qualifier used for each item is the original index that means if > your original array had 10 elements, then you'd have 10 column qualfiers to > store those 10 items. But if then you delete the third element, Gora will > end up with 9 actual elements (without the third), but there will be a 10th > element inside HBase :( and when modifying a specific element, we will end > up rewriting all of the elements :( > Maybe we should do the same thing, we do with the maps and rewrite them all > into HBase. At least it will work correctly. Could you open a JIRA for > that? > Thanks for pointing this out! > > > Renato M. > > 2014-10-27 16:47 GMT+01:00 Alfonso Nishikawa <[email protected] > >: > > > Hi, Talat. > > > > Thank you for your response. > > > > I lost that detail. Never knew that in order to shrink an array we had to > > nullify first. > > > > I don't know how to do in the Pig connector when updating an array... :S > > > > So, let me see if I understood. In order to delete an element (shrink) an > > array you have to: > > > > 1 - Define the array as nullable ['null', ...] > > 2 - Set the array as null in the persistent's field and persist. > > 3 - Set the new array in the persistent's field and persist. > > > > Although it works, I don't know what/why but I find something inherent > > wrong. > > > > Well, at least it is a solution and I can't think about a better way at > > this moment. Thank you very much :) > > > > Regards, > > > > Alfonso > > > > > > 2014-10-27 16:28 GMT+01:00 Talat Uyarer <[email protected]>: > > > > > Hi Alfonso, > > > > > > As i know when you want to change array's item you should replace with > > > null. An then you should set array again. We write over it. > > > > > > Talat > > > On Oct 27, 2014 4:25 PM, "Alfonso Nishikawa" < > > [email protected] > > > > > > > wrote: > > > > > > > Hi! > > > > > > > > I am working with arrays serialized in HBase and I suspect that when > > > > persisting arrays to HBase, you can't delete elements ( > > > > > > > > > > > > > > https://github.com/apache/gora/blob/master/gora-hbase/src/main/java/org/apache/gora/hbase/store/HBaseStore.java#L312 > > > > ). > > > > The array can only grow. > > > > Am I missing something or am I right? > > > > > > > > Thanks! > > > > > > > > Regards, > > > > > > > > Alfonso > > > > > > > > > >
