In this post, you’ll learn about the SQL error code 1027 in InterSystems IRIS database the reason why you are receiving the TSQL message when using the InterSystems IRIS data platform
Error Code :
1027
Reason for the Error code 1027 in InterSystems IRIS DBMS
Too many expressions are specified in the GROUP BY clause. The maximum number is %d when either CUBE or ROLLUP is specified.