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HANA SQL join behaviour

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Hello,

Hello, We have a simple SQL statements:

 

SELECT

Table__24."ZCONTRACT_NO",

Table__111."ACCOUNTING_PRODUCT_GRP_CODE1",

SUM(Table__24."KF_VALUE")

FROM

"_SYS_BIC"."MD.Groupings/AT_GRP_ACCOUNTING_PRODUCT"  Table__111

INNER JOIN "_SYS_BIC"."BNHP-UTILS.NewDrillDown/CV_DAILY_BALANCES"

('PLACEHOLDER' = ('$$IP_BAL_DATE1$$','20150331' ),'PLACEHOLDER' = ('$$IP_MODULE$$', '0')) Table__24

ON (Table__24."_BIC_CACCPRODG" = Table__111."_BIC_CACCPRODG"  AND  Table__24."ACCOUNTING_PRODUCT_GRP_CODE1" = Table__111."ACCOUNTING_PRODUCT_GRP_CODE1"  AND  Table__24."ACCOUNTING_PRODUCT_GRP_CODE2" = Table__111."ACCOUNTING_PRODUCT_GRP_CODE2"  AND  Table__24."ACCOUNTING_PRODUCT_GRP_CODE3" = Table__111."ACCOUNTING_PRODUCT_GRP_CODE3"  AND  Table__24."ACCOUNTING_PRODUCT_GRP_CODE4" = Table__111."ACCOUNTING_PRODUCT_GRP_CODE4"  AND  Table__24."ACCOUNTING_PRODUCT_GRP_CODE5" = Table__111."ACCOUNTING_PRODUCT_GRP_CODE5")

WHERE

( Table__24."CURRENCY_TYPE" IN ('G')  )

AND    (    Table__111."ACCOUNTING_PRODUCT_GRP_CODE1"  IN  ( '11'  ) 

AND  Table__24."ZRDL_TS_DATE" <= '20150401' 

     )

GROUP BY

Table__24."ZCONTRACT_NO",

Table__111."ACCOUNTING_PRODUCT_GRP_CODE1"

 

We run this SQL twice: first time with the restriction:

   AND  Table__24."ZRDL_TS_DATE" 

And second time without it.

 

The first viso plan:

viso1.jpg

The second viso plan:

 

viso2.jpg

As you can see with the restriction of "ZRDL_TS_DATE" the query returns 1,077,662 records and without it the query returns 101,875 records (in both queries we select the same fields…).

Why does it behaves this way?

Isn't it supposed to penetrate our restriction to the lowest level of the calculation view and only return the selected fields?

Thanks,

Amir 


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