Duplicate records must be removed the file prior to import

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Posted on by junior AX

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Hi,

I made an entity with natural key line num -- this field gets autocreated in the insert method.

I made access modifier for the linenum in the entity as private

when i want to import, i don't want to fill the linum -- it should be filled with the insert method

when i export i don't want to see linenum as well

i tried to import where the table is empty but got this error
The keys of the record are DEFINITIONGROUP, EXECUTIONID, LINENUM, PARTITION. Duplicate records must be removed the file prior to import

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André Arnaud de Cal... 299,983 Super User 2025 Season 2 on at

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Duplicate records must be removed the file prior to import

Hi Junior AX,

As the entity needs unique records, you can write logic in the data entity to fill the linenum field with a sequence for the staging table. Then it would meet the requirement for the entity key.

What exactly is this table about?

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junior AX 1,552 on at

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Duplicate records must be removed the file prior to import

Hi Andre,

The table is like a middle stage where we insert records to it before inserting to the actual tables.

It has fields that are related to another table.. it also has status field(new, inProcess, error)

There is nothing unique. So i added the lineNum as a natural key for the entity.

I already added a logic to fill lineNum in the insert method of the table...is it not enough? Do i need to add the same logic of filling lineNum in postload method for example?

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André Arnaud de Cal... 299,983 Super User 2025 Season 2 on at

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Duplicate records must be removed the file prior to import

Hi Junior AX,

The error comes from the staging validation as the entity key should be unique in the source file. You can indeed try to fill the staging table using the postLoad() method. When possible, you can also add the line numbers in your source file.

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