Duplicate Detection in Payloads | Dataford Interview Questions

A Workato Recipe may receive a payload containing multiple records before an action processes them. Implement a function that determines whether any two records share the same value for a specified unique key.

Return True as soon as a duplicate key is found. Return False when every record has a distinct key. The function must not modify the input list or its records.

Formal Specification

Implement has_duplicate_records(records, unique_key).

records is a list of dictionaries representing records in a Workato Recipe payload.
unique_key is a string naming the field used to identify duplicates.
Every record contains unique_key, and each key value is a hashable string.
Return a Boolean: True if at least two records have the same key value, otherwise False.

Constraints

0 <= len(records) <= 100000
Each record contains the specified unique key
Each unique key value is a hashable string
The input list and record dictionaries must not be modified

Function Signature

def has_duplicate_records(records, unique_key):

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