Hi, I am implementing a new feature of postgres. The problem is how to get the attribute of Aggregation. In /src/backend/commands/explain.c, I want to add a function after "case AGG_HASHED" to get the name of this aggregation attribute in the table. How can I get it.
I tried to see (Agg *) plan)->grpColIdx, which just is a integer number. Best Regards, Zhe HE TEL: (001) 646-789-3008 Address:965 Amsterdam Avenue, New York, NY 10025 Master Student, CS Dept. Columbia University www.columbia.edu/~zh2132 ------------------------------------------- 07 Alumni Bachelor of Eng, BUPT www.bupt.edu.cn