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Posted to user@drill.apache.org by Neeraja Rentachintala <nr...@maprtech.com> on 2015/09/24 00:41:43 UTC
Drill WITH clause syntax
Team
Is this a valid Drill syntax (i.e 2 tables in with clause).
WITH X1
AS
(SELECT city,
AVG(review_count) AS city_reviews_avg
FROM `business.json`
GROUP BY city),
X2
AS
(SELECT X1.city, X1.city_reviews_avg,
MAX(X1.city_reviews_avg)
OVER () AS city_reviews_avg_max
FROM X1)
SELECT X2.city, X2.city_reviews_avg
FROM X2
WHERE X2.city_reviews_avg_max = X2.city_reviews_avg;
I am hitting this error. *Error: SYSTEM ERROR: NoSuchFieldError: constants*
A single table specification in WITH clause works fine.
-Neeraja
Re: Drill WITH clause syntax
Posted by Jinfeng Ni <ji...@gmail.com>.
Is it something related to the json file you used?
I tried the following query, replacing "business.json' with
cp.`employee.json`. It works fine. (no row returned, which is
expected).
0: jdbc:drill:zk=local> WITH X1
. . . . . . . . . . . > AS
. . . . . . . . . . . > (SELECT city,
. . . . . . . . . . . > AVG(review_count) AS city_reviews_avg
. . . . . . . . . . . > FROM cp.`employee.json`
. . . . . . . . . . . > GROUP BY city),
. . . . . . . . . . . > X2
. . . . . . . . . . . > AS
. . . . . . . . . . . > (SELECT X1.city, X1.city_reviews_avg,
. . . . . . . . . . . > MAX(X1.city_reviews_avg)
. . . . . . . . . . . > OVER () AS city_reviews_avg_max
. . . . . . . . . . . > FROM X1)
. . . . . . . . . . . > SELECT X2.city, X2.city_reviews_avg
. . . . . . . . . . . > FROM X2
. . . . . . . . . . . > WHERE X2.city_reviews_avg_max = X2.city_reviews_avg;
+-------+-------------------+
| city | city_reviews_avg |
+-------+-------------------+
+-------+-------------------+
No rows selected (3.462 seconds)
On Wed, Sep 23, 2015 at 4:23 PM, Bob Rumsby <br...@maprtech.com> wrote:
> Based on our docs, multiple table references are valid, and this is
> consistent with other systems where WITH is supported in queries. However,
> maybe the problem is the reference to X1 in the definition of X2?
>
> Bob
>
> On Wed, Sep 23, 2015 at 3:41 PM, Neeraja Rentachintala <
> nrentachintala@maprtech.com> wrote:
>
>> Team
>> Is this a valid Drill syntax (i.e 2 tables in with clause).
>>
>> WITH X1
>> AS
>> (SELECT city,
>> AVG(review_count) AS city_reviews_avg
>> FROM `business.json`
>> GROUP BY city),
>> X2
>> AS
>> (SELECT X1.city, X1.city_reviews_avg,
>> MAX(X1.city_reviews_avg)
>> OVER () AS city_reviews_avg_max
>> FROM X1)
>> SELECT X2.city, X2.city_reviews_avg
>> FROM X2
>> WHERE X2.city_reviews_avg_max = X2.city_reviews_avg;
>>
>> I am hitting this error. *Error: SYSTEM ERROR: NoSuchFieldError: constants*
>>
>> A single table specification in WITH clause works fine.
>>
>> -Neeraja
>>
Re: Drill WITH clause syntax
Posted by Bob Rumsby <br...@maprtech.com>.
Based on our docs, multiple table references are valid, and this is
consistent with other systems where WITH is supported in queries. However,
maybe the problem is the reference to X1 in the definition of X2?
Bob
On Wed, Sep 23, 2015 at 3:41 PM, Neeraja Rentachintala <
nrentachintala@maprtech.com> wrote:
> Team
> Is this a valid Drill syntax (i.e 2 tables in with clause).
>
> WITH X1
> AS
> (SELECT city,
> AVG(review_count) AS city_reviews_avg
> FROM `business.json`
> GROUP BY city),
> X2
> AS
> (SELECT X1.city, X1.city_reviews_avg,
> MAX(X1.city_reviews_avg)
> OVER () AS city_reviews_avg_max
> FROM X1)
> SELECT X2.city, X2.city_reviews_avg
> FROM X2
> WHERE X2.city_reviews_avg_max = X2.city_reviews_avg;
>
> I am hitting this error. *Error: SYSTEM ERROR: NoSuchFieldError: constants*
>
> A single table specification in WITH clause works fine.
>
> -Neeraja
>
Re: Drill WITH clause syntax
Posted by Daniel Barclay <db...@maprtech.com>.
> I am hitting this error. *Error: SYSTEM ERROR: NoSuchFieldError: constants*
That looks like a low-level Java error caused by a version mismatch,
as if one class is referring to a member field named "constants" in
another class, which had the field when the first class was compiled,
but field doesn't actually exist in the version of the other class
that got loaded.
Daniel
Neeraja Rentachintala wrote:
> Team
> Is this a valid Drill syntax (i.e 2 tables in with clause).
>
> WITH X1
> AS
> (SELECT city,
> AVG(review_count) AS city_reviews_avg
> FROM `business.json`
> GROUP BY city),
> X2
> AS
> (SELECT X1.city, X1.city_reviews_avg,
> MAX(X1.city_reviews_avg)
> OVER () AS city_reviews_avg_max
> FROM X1)
> SELECT X2.city, X2.city_reviews_avg
> FROM X2
> WHERE X2.city_reviews_avg_max = X2.city_reviews_avg;
>
> I am hitting this error. *Error: SYSTEM ERROR: NoSuchFieldError: constants*
>
> A single table specification in WITH clause works fine.
>
> -Neeraja
>
--
Daniel Barclay
MapR Technologies