Re: Is Dropping a column "CHECK" constraint possible?
От | Christopher Kings-Lynne |
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Тема | Re: Is Dropping a column "CHECK" constraint possible? |
Дата | |
Msg-id | 00e101c224a6$81ee3bc0$0200a8c0@SOL обсуждение исходный текст |
Ответ на | Is Dropping a column "CHECK" constraint possible? ("Rajesh Kumar Mallah." <mallah@trade-india.com>) |
Ответы |
Re: Is Dropping a column "CHECK" constraint possible?
Re: Is Dropping a column "CHECK" constraint possible? |
Список | pgsql-sql |
> can anyone please help? > i have a to drop a check contstraint from a column. eg > > tradein_clients=# \d t_a > Table "t_a" > Column | Type | Modifiers > ------------+---------+----------- > company_id | integer | > exp | text | > imp | text | > Check constraints: "$1" (length(imp) > 1) > "aaaaaq" (length(imp) > 1) > > Can i remove to contraints thru ALTER TABLE or similar commands. > I have read the docs for ALTER TABLE but the command described is > not working for me. This should work, so long as you're using postgres 7.2+ ALTER TABLE "t_a" DROP CONSTRAINT "aaaaaq" RESTRICT; Chris
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