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We have to store data from different IBM i Systems from several countries, with diffent local encodings (DE/AT = CCSID 273, NO = CCSID 277, BE = 500, ...) into one target schema. Therefore we descided to use for character fields the data type NCHAR/GRAPHIC (CCSID 1200 - UTF-16).
We recognize that the refresh performance is very poor. E.g for a spefic table we need for the refresh against a PDA Database only 16 sec. On IBM i the refresh takes around 15 minutes.
The performance issue results in an inadequate refresh time for our subscriptions and also an inadequate CPU utilisation during mirroring.
Further detail are documented in Support Case TS005163247.
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