Dear All,
I have a problem with one of PAL procedures!
Currently, I am using FORECASTSMOOTHING with Triple Exponential Smoothing from SAP HANA Predictive Analysis Library (PAL). I am working with hourly data and I am testing this procedure only on 6445 records.
I have a problem with cycle parameter that I can't overcome...
When the cycle parameter is setted to 24 (hourly data) I can use only 4267 records from my input table. Even one record more generates error: “Could not execute 'CALL _SYS_AFL.PAL_TSF_TMH(TMH.INPUT_DATA_TS_F, "#PAL_CONTROL_TBL_TS", TMH.PAL_OUT_TS_F, ...' in 383 ms 461 µs . SAP DBTech JDBC: [2048]: column store error: search table error: [2620] _SYS_AFL.AFLPAL:FORECASTSMOOTHING: [135] (range 2) AFLFunctionFatal exception: PAL error[73001502]:Ahead exception throw out, Check trace for details”.
But when I change cycle to 5 or less I can use as many records as I want. Have you ever had such problem? I hope you could help.
Regards,
Wiola