Re: [HACKERS] Table aliases in delete statements?
От | Brian E Gallew |
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Тема | Re: [HACKERS] Table aliases in delete statements? |
Дата | |
Msg-id | emacs-smtp-20280-14414-25719-223163@export.andrew.cmu.edu обсуждение исходный текст |
Ответ на | Re: [HACKERS] Table aliases in delete statements? (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-hackers |
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. -- ===================================================================== | JAVA must have been developed in the wilds of West Virginia. | | After all, why else would it support only single inheritance?? | ===================================================================== | Finger geek@cmu.edu for my public key. | =====================================================================
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