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From Gabriel Reid <gabriel.r...@gmail.com>
Subject Re: Query returning different results in Apache Phoenix and MySQL
Date Mon, 12 Jan 2015 10:44:29 GMT
Kunal,

Just to clarify: I didn't mean that you should post (or send) the full
contents of your table. Instead, I mean you should make a minimal test case
(with a minimal number of records) that demonstrates the issue. For
example, do you get unexpected results if you only have 10 records in your
table?

- Gabriel


On Mon, Jan 12, 2015 at 10:58 AM, Kunal Gupta <kunal1340@iiitd.ac.in> wrote:

> Thank You Gabriel for your response and will reply you soon with snapshot
> of all becasue Table contain 466738 records so i will send you snapshot of
> those who are missing in Phoenix.
>
> Can you tell me if i can perform same operation in different way as i
> defined in my earlier mail.I hope you got me question
>
> Thanks , Kunal
>
>
> On Mon, Jan 12, 2015 at 1:20 PM, Gabriel Reid <gabriel.reid@gmail.com>
> wrote:
>
>> Hi Kunal,
>>
>> I think you'll need to post some additional information to get an
>> answer to your question. You said that MySQL returns 35 rows and
>> Phoenix returns 32 rows, but it's not clear from your description what
>> the rows are that are missing from the Phoenix result, or what it is
>> that makes the Phoenix result incorrect and the MySQL result correct.
>>
>> The best approach to resolving this would be to create a minimal case,
>> with a smaller number of rows, that demonstrates the issue that you're
>> encountering.
>>
>> - Gabriel
>>
>>
>> On Mon, Jan 12, 2015 at 8:43 AM, Kunal Gupta <kunal1340@iiitd.ac.in>
>> wrote:
>> > I have a table named as EVENTLOG which has 3 columns:
>> >
>> >     (CASEID VARCHAR(200), DATEPLUSTIME TIMESTAMP, SUBSTATUS
>> VARCHAR(200))
>> >
>> > DATEPLUSTIME is in format of YYYY-MM-DD hh:mm:ss. Below is the query
>> that
>> > will work on Apache phoenix as well as for MySQL.
>> >
>> >     SELECT DISTINCT E1.SUBSTATUS
>> >       FROM EVENTLOG AS E1
>> >         WHERE E1.DATEPLUSTIME IN
>> >              (SELECT MIN(E2.DATEPLUSTIME)
>> >                          FROM EVENTLOG AS E2
>> >                               GROUP BY E2.CASEID);
>> >
>> > Table contains 466738 records. When i perform the above query in MySQL
>> , i
>> > get 35 rows of it but on Apache Phoenix i get 32 rows so it is missing 3
>> > rows why is there difference in their result.
>> > Table looks like the following(Records Striped).
>> >
>> >      +----+---+---+---+--+----------+----+-----------+
>> >      | CASEID |      DATEPLUSTIME  | SUBSTATUS |
>> >      +----+---+---+---+--------+-----+---+-----------+
>> >      |  1     | 2010-04-10 18:20:38      | Assignment|
>> >      |  1     | 2010-04-10 20:12:56      | Update    |
>> >      |  1     | 2010-11-23 23:12:34      | Assigned  |
>> >      |  1     | 2010-11-25 23:45:34      | Assigned  |
>> >      |  2     | 2010-12-30 12:32:23      | Reassigned|
>> >      |  2     | 2014-12-30 12:34:21      | Operator  |
>> >      |  2     | 2014-12-25 20:32:45      | Operator  |
>> >      |  3     | 2014-12-26 08:45:54      | Progress  |
>> >      |  3     | 2014-12-30 08:49:32      | Call      |
>> >      +----+---+---+---+---+----+------+--+-----------+
>> > [Expected Output]
>> >
>> >     Assignment
>> >     Reassigned
>> >     Progress
>> >
>> > MySQL does the task correctly butr Phoenix return incomplete result.
>> > Please help me.
>> >
>> >
>> > Thanks , Kunal
>> >
>>
>
>

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