InterSystems IRIS TSQL Code 1909 Cannot use duplicate column names in ind

In this post, you’ll learn about the SQL error code 1909 in InterSystems IRIS database the reason why you are receiving the TSQL message when using the InterSystems IRIS data platform

Error Code :

1909

Reason for the Error code 1909 in InterSystems IRIS DBMS

Cannot use duplicate column names in index key list. Column name ‘%.*ls’ listed more than once.

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