Re: [HACKERS] More on GROUP BY
От | jwieck@debis.com (Jan Wieck) |
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Тема | Re: [HACKERS] More on GROUP BY |
Дата | |
Msg-id | m10hajz-000EBaC@orion.SAPserv.Hamburg.dsh.de обсуждение исходный текст |
Ответ на | Re: [HACKERS] More on GROUP BY (jwieck@debis.com (Jan Wieck)) |
Список | pgsql-hackers |
I wrote: > I'll go ahead now in little steps. > > 1. Get rid of the TLE copy in GroupClause. Done. GroupClause now identifies the TLE by a number which is placed into the Resdom by parser/rewriter. New initdb required because of modifications in node print/read functions. > > 2. Move the targetlist expansion into the rule system. Not required anymore AFAICS. Instead I modified the targetlist preprocessing in the planner so that junk attributes used by group clauses get added again to the expanded list. Jan -- #======================================================================# # It's easier to get forgiveness for being wrong than for being right. # # Let's break this rule - forgive me. # #======================================== jwieck@debis.com (Jan Wieck) #
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