[jira] [Created] (CARBONDATA-493) Insertinto sql can not select from a empty table

2016-12-04 Thread QiangCai (JIRA)
QiangCai created CARBONDATA-493: --- Summary: Insertinto sql can not select from a empty table Key: CARBONDATA-493 URL: https://issues.apache.org/jira/browse/CARBONDATA-493 Project: CarbonData

Re: About hive integration

2016-12-04 Thread Ravindra Pesala
Hi, Yes, we have plans for integrating carbondata to hive engine but it is not our high priority work now so we will take it up this task gradually. Any contributions towards it are welcome. Regards, Ravi On 4 December 2016 at 12:30, Sea <261810...@qq.com> wrote: > Hi, all: > Now

Re: Why INT type is stored like BIGINT?

2016-12-04 Thread Ravindra Pesala
Hi, Since we use delta compression for measure types in carbondata , it stores the data with least datatype as per the values in blocklet. So it does not matter whether we store INT or BIGINT in carbondata files, it always use least datatype to store. Regards, Ravi On 4 December 2016 at 13:28,

Re: B-Tree LRU cache (New Feature)

2016-12-04 Thread manish gupta
Hi Sujith, I agree with your point. We can always send a list of invalid segments to the executors in the query model that needs to be cleared from the cache. But there are few cases where clearing B-tree cache cannot be ensured like: 1. Table is dropped 2. Execution of clean table DML command.

Re: B-Tree LRU cache (New Feature)

2016-12-04 Thread sujith chacko
Hi Shahid, its a well explained document, just need few clarifications, a) once compaction is done the segments and its blocks will be invalidated, LRU's scope is to evict the unused objects from memory or least recently used objects from memory, but after compaction the segment itself

Fw: Re?? CarbonData propose major version number increment for nextversion (to 1.0.0)

2016-12-04 Thread Sea
+1 sorry, I miss the major changes in API Regards yuhai -- Original -- From: "Sea";<261810...@qq.com>; Date: Fri, Nov 25, 2016 05:34 PM To: "dev"; Subject: Re?? CarbonData propose major version number increment for