Thanks Dudu,
Can you help me in parsing below logic, I see First you are starting
join of table1 with result set of Group by > 1 and perform left join
with table2, how can we get reference a. alias of joined result or will
hive pickup "a" column from table 1 and 3 column in table2.
thanks in advance
On 5/3/2016 11:24 AM, Markovitz, Dudu wrote:
Forget about the BTW…
Apparently hive behaves like sqlite in that matter and not like other
databases
hive> select 1 from table1 having 1=1;
FAILED: SemanticException HAVING specified without GROUP BY
*From:*Markovitz, Dudu [mailto:dmarkov...@paypal.com]
*Sent:* Tuesday, May 03, 2016 8:36 PM
*To:* user@hive.apache.org
*Subject:* RE: Unsupported SubQuery Expression '1': Only SubQuery
expressions that are top level conjuncts are allowed
I left out the filter on column Col2in order to simplify the test case.
The following query is logically equal to your original query.
**
BTW –
You don’t need the GROUP BY A.Col1 part in your original query
Dudu**
**
*create**table*Table1(Col1int,Col3int)*;*
*create**table*Table2(Col1int,Col3int)*;*
*insert**into*Table1*values*(10,1),(20,2),(40,4),(60,7),(80,8)*;*
*insert**into*Table2*values*(10,1),(30,2),(20,3),(50,4),(40,5),(40,6),(70,7)*;*
*select**
*from*table1a
*left**join* (*select*col1
*from*table2
*group**by*col1
*having*count(*) >1
)
b2
*on*b2.col1=
a.col1
*left**join*table2b
*on*a.col3=
b.col3
*and*b2.col1*is**null*
*;*
10 1 NULL 10 1
20 2 NULL 30 2
40 4 40 NULL NULL
60 7 NULL 70 7
80 8 NULL NULL NULL
*From:*mahender bigdata [mailto:mahender.bigd...@outlook.com]
*Sent:* Tuesday, May 03, 2016 4:02 PM
*To:* user@hive.apache.org <mailto:user@hive.apache.org>
*Subject:* Re: Unsupported SubQuery Expression '1': Only SubQuery
expressions that are top level conjuncts are allowed
Updated..
select A.Col1,A.Col2....B.Col3
From Table1 A
LEFT OUTER JOIN Table2 B
ON A.Col3= B.Col3
AND NOT EXISTS(SELECT 1 FROM Table2 B WHERE B.Col1= A.Col1 GROUP BY
A.Col1 HAVING COUNT(*)>1 )
AND (CASE WHEN ISNULL(A.Col2,'\;') = '\;' THEN 'NOT-NULL'
ELSE 'NULL' END) = B.Col2)
On 5/2/2016 10:52 PM, Markovitz, Dudu wrote:
Hi
Before dealing the issue itself, can you please fix the query?
There are 3 aliased tables - Table1 (A), Table2 (B) & Table2 (mb)
but you’re using additional 2 aliases – ma & adi1.
Thanks
Dudu
select A.Col1,A.Col2....B.Col3
From Table1 A
LEFT OUTER JOIN Table2 B
ON A.Col3= B.Col3
AND NOT EXISTS(SELECT 1 FROM Table2 B WHERE B.Col1= A.Col1 GROUP
BY A.Col1 HAVING COUNT(*)>1 )
AND (CASE WHEN ISNULL(A.Col2,'\;') = '\;' THEN 'NOT-NULL'
ELSE 'NULL' END) = B.Col2)
*From:*mahender bigdata [mailto:mahender.bigd...@outlook.com]
*Sent:* Tuesday, May 03, 2016 4:22 AM
*To:* user@hive.apache.org <mailto:user@hive.apache.org>
*Subject:* Unsupported SubQuery Expression '1': Only SubQuery
expressions that are top level conjuncts are allowed
Hi,
Is there a way to implement not exists in Hive. I'm using Hive
1.2. I'm getting below error
"Unsupported SubQuery Expression '1': Only SubQuery expressions
that are top level conjuncts are allowed"
_Query:_
select A.Col1,A.Col2....B.Col3
From Table1 A
LEFT OUTER JOIN Table2 B
ON A.Col3= B.Col3
AND NOT EXISTS(SELECT 1 FROM Table2 mb WHERE ma.Col1= adi1.Col1
GROUP BY ma.Col1 HAVING COUNT(*)>1 )
AND (CASE WHEN ISNULL(A.Col2,'\;') = '\;' THEN
'NOT-NULL' ELSE 'NULL' END) = B.Col2)
I Would like to have OR Condition in LEFT Join hive statement. or
alternative way by splitting.
thanks
