Partner index segment no 1 has incompatible data type

This usually means that the field in the foreign key you're trying to create has a different data type then the field of the primary key column it is referencing.

The difference can be subtle, anything that affects index (even field collation) is taken info account.

To solve this problem, usually the right thing to do is to change the data type of the foreign key columns before creating the foreign key constraint.

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