Re: Assignments in PL/pgSQL
От | Jan Wieck |
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Тема | Re: Assignments in PL/pgSQL |
Дата | |
Msg-id | 3D8228B3.6262C2C7@Yahoo.com обсуждение исходный текст |
Ответ на | Re: DISTINCT ON ("Christopher Kings-Lynne" <chriskl@familyhealth.com.au>) |
Ответы |
Re: Assignments in PL/pgSQL
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Список | pgsql-sql |
Josh Berkus wrote: > > Michael, > > > although this is not really SQL, but PL/pgSQL, I hope this is the right > > place to ask. > > This is the right place. > > > I have written a complex triggers. It works very well. Just now I have > > realized that I have used the = operater for variable assignments, instead > > of the := operater. To my suprise, there was no error or warning, and the > > store procedure works very well! > > > > e.g. > > NEW.someval = rec.someother; > > works as well as > > NEW.someval := rec.someother; > > > > Can you confirm that both are valid? Can someone explain this? > > And is it safe to use the former syntax? > > I'm very surprised, too. The "=" syntax is not per spec; my guess is, > somebody coded in compatibility for DB conversion purposes and left it there. > Jan? Tom? Er ... I don't recall completely, maybe it was more compatibility to my own lazyness ;-/ (typing a colon means Shift-and-semicolon ... that's 2 saved keystrokes per assignment ... what do you think where I save all the keystrokes I need to write email like this?). Jan -- #======================================================================# # It's easier to get forgiveness for being wrong than for being right. # # Let's break this rule - forgive me. # #================================================== JanWieck@Yahoo.com #
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