Re: [HACKERS] Table aliases in delete statements?

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От Brian E Gallew
Тема Re: [HACKERS] Table aliases in delete statements?
Дата
Msg-id emacs-smtp-20280-14414-25719-223163@export.andrew.cmu.edu
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Ответ на Re: [HACKERS] Table aliases in delete statements?  (Tom Lane <tgl@sss.pgh.pa.us>)
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Then <tgl@sss.pgh.pa.us> spoke up and said:
> Keith Parks <emkxp01@mtcc.demon.co.uk> writes:
> > Is there any reason for not allowing table aliases in
> > delete statements?
> 
> As Bruce points out in another followup, there's no real need for
> an alias for the target table; if you have sub-selects that need
> independent references to the target, you can always alias *them*.
> The same goes for INSERT and UPDATE, which also take unadorned
> <table name> as the target table specification.

Unless your query is going to be long enough to run into query length
limits, aliases are not your friends.  Standard SQL they may be, but
aliases always end up obscuring queries to those who come along after
you. 

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