THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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In the first form the model is a composite type and opaque to the user. We can provide introspection functions to understand the model. This is related to the model management section above.
group_col1 | group_col2 | model |
u1 | v1 | <model for u1, v1> |
u1 | v2 | <model for u1, v2> |
... | ||
u2 | v1 | <model for u2, v1> |
In the second form, the model elements are stored as columns in output table, exposing the elements to the user.
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