From: | "Zhe He" <henryhezhe2003(at)gmail(dot)com> |
---|---|
To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Where is Aggregation Attribute |
Date: | 2008-09-18 02:39:55 |
Message-ID: | d7ca04b40809171939k4492623fjf3960d16dc3b976@mail.gmail.com |
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Lists: | pgsql-hackers |
I want to get the attribute from an Aggregation node, where is it?
typedef struct Agg
{
Plan plan;
AggStrategy aggstrategy;
int numCols; /* number of grouping columns */
AttrNumber *grpColIdx; /* their indexes in the target list */
Oid *grpOperators; /* equality operators to compare with */
long numGroups; /* estimated number of groups in input */
} Agg;
--
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
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