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From Pedro Gandola <pedro.gand...@gmail.com>
Subject Re: Local Indexes are not used to query views
Date Thu, 14 Jan 2016 17:35:22 GMT
Issue created: https://issues.apache.org/jira/browse/PHOENIX-2597

Cheers
Pedro

On Thu, Jan 14, 2016 at 5:19 PM, Pedro Gandola <pedro.gandola@gmail.com>
wrote:

> Hi James,
>
> Sure, I will do it.
>
> Thanks
> Cheers
>
> On Thu, Jan 14, 2016 at 5:01 PM, James Taylor <jamestaylor@apache.org>
> wrote:
>
>> Thanks for reporting this, Pedro. I tried it on 4.7-SNAPSHOT and it works
>> for non local indexes, but not for local indexes. Please file a JIRA.
>>
>>    James
>>
>> On Thu, Jan 14, 2016 at 8:34 AM, Pedro Gandola <pedro.gandola@gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> I've noticed that Phoenix (using version 4.4) when querying a view it
>>> does not consider the original table local indexes to optimise the query.
>>>
>>> If I explain my query over the original table it's using the local index
>>> properly:
>>>
>>> *EXPLAIN SELECT * FROM BIDDING_EVENTS WHERE wTs IS NOT NULL;*
>>>> CLIENT 300-CHUNK PARALLEL 300-WAY RANGE SCAN OVER
>>>> _LOCAL_IDX_BIDDING_EVENTS [-32768]
>>>>      SERVER FILTER BY "WTS" IS NOT NULL
>>>
>>>
>>> However, If I create a view using the exact same query and explain I get
>>> a full scan.
>>>
>>>
>>>> *CREATE VIEW WINS_VIEW AS SELECT * FROM BIDDING_EVENTS WHERE wTs IS NOT
>>>> NULL; *
>>>
>>> *EXPLAIN SELECT * FROM WINS_VIEW;*
>>>> CLIENT 300-CHUNK PARALLEL 1-WAY FULL SCAN OVER BIDDING_EVENTS
>>>>      SERVER FILTER BY WTS IS NOT NULL
>>>
>>>
>>> Is this the expected behaviour? Or could this be an issue with 4.4
>>> version?
>>>
>>> Thank you
>>> Cheers
>>> Pedro
>>>
>>
>>
>

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