3327117 - Worse than expected performance due to unnecessary FDA WRITE statements

In particular scenarios, FDA WRITE statements are slower than expected, even though a very small number of records is returned and the size of the FAE table is quite small. This can be verified for example using the ST05 SQL trace:

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Details for Selected SQL Trace Record
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   SELECT
     /* FDA WRITE */
     DISTINCT  "V_KNCX_VARC" . *
   FROM
     "V_KNCX_VARC" , ? AS "t_00" ("C_0" NVARCHAR(10), "C_1" NVARCHAR(4), "C_2" NVARCHAR(4))
   WHERE
     "V_KNCX_VARC" . "MANDT" = ? AND "V_KNCX_VARC" . "KUNNR" = "t_00" . "C_0" AND
     "V_KNCX_VARC" . "BUKRS" = "t_00" . "C_1" AND "V_KNCX_VARC" . "GJAHR" = "t_00"
     . "C_2"
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Variables
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   A0(IT,13)       = ITAB[1x3(36)]
   A1(CH,10)       = 'XXXXXXXXXX'
   A2(CH,4)        = '2201'
   A3(NU,4)        = '2001'
   A4(CH,3)        = '022'
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SAP HANA, platform edition 2.0

degraded, slow,  , KBA , HAN-DB-PERF , SAP HANA Database Performance , Problem