abhiieor abhiieor - 2 months ago 20
SQL Question

Both left and right aliases encountered in Hive JOIN; without any inequality clause

I am using following query:

Select
S.MDSE_ITEM_I,
S.CO_LOC_I,
MAX(S.SLS_D) as MAX_SLS_D,
MIN(S.SLS_D) as MIN_SLS_D,
sum(S.SLS_UNIT_Q) as SLS_UNIT_Q,
MIN(PRSMN_VAL_STRT_D) as PRSMN_VAL_STRT_D,
MIN(PRSMN_VAL_END_D) as PRSMN_VAL_END_D,
MIN(RC.FRST_RCPT_D) as FRST_RCPT_D,
MIN(RC.CURR_ACTV_FRST_OH_D) as CURR_ACTV_FRST_OH_D,
MIN(H.GREG_D) as OH_GREG_D
from
eefe_lstr4.SLS_TBL as S
left outer join
eefe_lstr4.PRS_TBL P
on S.MDSE_ITEM_I = P.MDSE_ITEM_I
and S.CO_LOC_I = P.CO_LOC_I
and S.SLS_D between PRSMN_VAL_STRT_D and PRSMN_VAL_END_D
left outer join
eefe_lstr4.OROW_RCPT RC
on RC.MDSE_ITEM_I =S.MDSE_ITEM_I
and RC.CO_LOC_I = S.CO_LOC_I
left outer join
eefe_lstr4.OH H
on H.MDSE_ITEM_I =S.MDSE_ITEM_I
and H.CO_LOC_I = S.CO_LOC_I
group by
S.MDSE_ITEM_I,
S.CO_LOC_I;
COPY TO CLIPBOARD SELECT ALL


I am getting error saying:


FAILED: SemanticException Line 0:-1 Both left and right aliases
encountered in JOIN 'PRSMN_VAL_END_D'


Search shows that this error comes when you have inequality clause in query. However I am not using any inequality clause in my query even then I am getting this error.

Answer

Try to move the inequality condition from on clause to the where condition .

Select S.MDSE_ITEM_I,S.CO_LOC_I,
       MAX(S.SLS_D) as MAX_SLS_D,
       MIN(S.SLS_D) as MIN_SLS_D,
       sum(S.SLS_UNIT_Q) as SLS_UNIT_Q,
       MIN(PRSMN_VAL_STRT_D) as PRSMN_VAL_STRT_D,
       MIN(PRSMN_VAL_END_D) as PRSMN_VAL_END_D,
       MIN(RC.FRST_RCPT_D) as FRST_RCPT_D,
       MIN(RC.CURR_ACTV_FRST_OH_D) as CURR_ACTV_FRST_OH_D,
       MIN(H.GREG_D) as  OH_GREG_D
from eefe_lstr4.SLS_TBL as S
         left outer join eefe_lstr4.PRS_TBL P on S.MDSE_ITEM_I = P.MDSE_ITEM_I and S.CO_LOC_I = P.CO_LOC_I 
         left outer join eefe_lstr4.OROW_RCPT RC on RC.MDSE_ITEM_I =S.MDSE_ITEM_I and RC.CO_LOC_I =  S.CO_LOC_I
         left outer join eefe_lstr4.OH H on H.MDSE_ITEM_I =S.MDSE_ITEM_I and H.CO_LOC_I = S.CO_LOC_I
where(S.SLS_D between PRSMN_VAL_STRT_D and PRSMN_VAL_END_D)
group by S.MDSE_ITEM_I, S.CO_LOC_I;
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