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I have one very simple workbench that I am running against both SDE (9.3) and FGDB (10.0) sources.

I noticed two different fme_geometry values for same type of objects.

For the first one, i.e SDE 9.3, I have fme_geometry=fme_donut, but for the same features in FGDB 10.0 I have fme_geometry=fme_aggregate.

Is this a "problem" of converting ESRI data from 9.3 to 10.0 or how FME interprets geometry?

Because in case of fme_aggregate, FME is doing "additional" job of constructing donuts again:

Calculating inside points
Determining uppermost containment
Constructing donuts from xxx points

(Visible in log window)

closed as primarily opinion-based by neogeomat, BERA, nmtoken, whyzar, aldo_tapia Mar 13 '18 at 11:29

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

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    An fme_aggregate is equivalent to a multi-part polygon. Are you sure that the features you are comparing are actually the same in this respect (it would seem that one is multi-part and the other is not). – blah238 Jan 14 '13 at 8:16
  • Also I'm sure I've mentioned this before, but you will probably get more focused answers on the FME Community Answers site than here. – blah238 Jan 14 '13 at 8:35
  • ok, you have right blah238! – Z77 Jan 14 '13 at 9:23
  • Anyone here? I asked this question FME Community also. – Z77 Jan 15 '13 at 7:49
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    I suppose a question back should be, why do you think that FME should produce the same geometry types? – nmtoken Sep 21 '16 at 8:21