Hi James, Sorry, i dont understand the context of "Would be good to quantify the potential gain with and without FAST_DIFF encoding (the default) and/or Snappy compression."? The feature Yanlin is requesting is more for ease of usability/readability.
On Sun, Jun 14, 2015 at 5:59 PM, James Taylor <[email protected]> wrote: > Good idea. Please file a JIRA. Would be good to quantify the potential > gain with and without FAST_DIFF encoding (the default) and/or Snappy > compression. > > > On Sunday, June 14, 2015, yanlin wang <[email protected]> wrote: > >> Thanks for the reply Anil. >> >> Is this what you referring: >> create view my view as >> select a as appColumn1, b as appColum2 from table ? >> >> By reading the document, seems view will introduce limitations e.g schema >> update issue. It would be really good if phoenix put the auto aliasing >> column name support in its road map … >> >> >> Thx >> Yanlin >> >> >> >> >> On Jun 14, 2015, at 5:06 PM, anil gupta <[email protected]> wrote: >> >> Hi Yanlin, >> >> If you are doing reads. You can use a view. >> For writes, i dont think Phoenix provides anything for aliasing column >> names. It would be good if we have this feature because using short column >> names is a common thing in HBase. >> >> Thanks, >> Anil Gupta >> >> On Sun, Jun 14, 2015 at 12:19 PM, yanlin wang <[email protected]> >> wrote: >> >>> Hi, >>> >>> Usually one method to reduce IO in hbase is to reduce the size of column >>> qualifier’s length and use a dictionary to map the application column name >>> to the actual column qualifier. Kiji schema project is doing exactly that. >>> Is there any column name encoding support in Phoenix? if no, any plan to do >>> that? Another option is that we can create phoenix table on top of kiji >>> table, but kiji has its own column serializer which is based on avro and >>> the Phoenix client needs to be modified to do the custom deserialization >>> and mapping etc. The last resort will be putting these column name mapping >>> biz into application DAO layer. Do you have any suggestion? >>> >>> Thx, >>> Yanlin >> >> >> >> >> -- >> Thanks & Regards, >> Anil Gupta >> >> >> -- Thanks & Regards, Anil Gupta
