Why Does a Data Export Contain Duplicate Column Names?

Exports can contain duplicate headers when joined tables share field names or a report aliases columns inconsistently. Downstream spreadsheets and integrations may then map values to the wrong field.

What to check

Inspect the export query, source schemas, aliases, and report templates. Compare the header row with the fields consumed by the receiving application.

Recommended next step

Assign explicit unique names and validate the export contract before release. Informatix Systems can improve data engineering and analytics integrations.