http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/ Thu, 09 Sep 2010 10:10:38 +0000 hourly 1 http://wordpress.org/?v=3.0.1 http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/comment-page-1/#comment-25599 T1 Sat, 29 Mar 2008 13:57:48 +0000 http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/#comment-25599 What research book would you suggest? What research book would you suggest?

]]> http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/comment-page-1/#comment-21610 Pavel Stehule Tue, 18 Sep 2007 06:46:02 +0000 http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/#comment-21610 @depesc, ofcourse .. on bigger tables can be slow, corelated subqueries are efective in 10% very specific cases and it's better doesn't use it @depesc, ofcourse .. on bigger tables can be slow, corelated subqueries are efective in 10% very specific cases and it’s better doesn’t use it

]]> http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/comment-page-1/#comment-21558 depesz Mon, 17 Sep 2007 17:23:31 +0000 http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/#comment-21558 @Pavel Stehule: why ":-("? something is wrong with them? @Pavel Stehule:
why “:-(“? something is wrong with them?

]]> http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/comment-page-1/#comment-21552 Pavel Stehule Mon, 17 Sep 2007 15:25:59 +0000 http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/#comment-21552 @depesz Your solution is corelated subquery :-(. @depesz
Your solution is corelated subquery .

]]> http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/comment-page-1/#comment-21541 depesz Mon, 17 Sep 2007 11:16:52 +0000 http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/#comment-21541 @Richard Broersma Jr.: it is of course possible (like Pavel showed), but i'm not really enthusiastic about using system-data in standard (ekhem) sql queries. the idea and usage is great. i just have "moral" issues with it :) @Richard Broersma Jr.:
it is of course possible (like Pavel showed), but i’m not really enthusiastic about using system-data in standard (ekhem) sql queries.
the idea and usage is great. i just have “moral” issues with it

]]> http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/comment-page-1/#comment-21540 Pavel Stehule Mon, 17 Sep 2007 11:14:25 +0000 http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/#comment-21540 Use ctid http://www.pgsql.cz/index.php/SQL_Triky#Smaz.C3.A1n.C3.AD_duplicitn.C3.ADch_.C5.99.C3.A1dek.2C Use ctid
http://www.pgsql.cz/index.php/SQL_Triky#Smaz.C3.A1n.C3.AD_duplicitn.C3.ADch_.C5.99.C3.A1dek.2C

]]> http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/comment-page-1/#comment-21538 Richard Broersma Jr. Mon, 17 Sep 2007 10:38:24 +0000 http://www.depesz.com/index.php/2007/09/17/how-to-remove-duplicated-rows/#comment-21538 Instead of using a Sequence, is it possible to use the CTID to distinguish between two row? Instead of using a Sequence, is it possible to use the CTID to distinguish between two row?

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