From: Alex Hunsaker <badalex@gmail.com>
To: Tommy Cheng <csckcac@gmail.com>
Cc: pgsql-admin@postgresql.org
Subject: Re: turn off auto index for foreign key
Date: Mon, 9 Jun 2008 22:58:15 -0600
Message-ID: <34d269d40806092158vc3069e7gfd58166dee46aa2c@mail.gmail.com> (raw)
In-Reply-To: <2267dd9e0806092117sda112dt8ac2f2ba8ed5e66f@mail.gmail.com>
References: <2267dd9e0806091948k24a46cegcd45e65a5aa632ed@mail.gmail.com>
<dcc563d10806092050y3f41ef00j95390d335e4d11c0@mail.gmail.com>
<2267dd9e0806092117sda112dt8ac2f2ba8ed5e66f@mail.gmail.com>
On Mon, Jun 9, 2008 at 10:17 PM, Tommy Cheng <csckcac@gmail.com> wrote:
> you are right. I double checked. So, is there any way to turn off auto index
> creation for the parent? (the best is changing postgresql database setting)
> I am using postgres (PostgreSQL) 8.1.9 on CentOS 5 x86_64
>
Again, there is no auto index creation for foriegn keys. However if
you declared the column unique or its the pkey (ala unique) (As Scott
said) then there will an index.
No you cant turn it off because its how postgres enforces uniqueness
see http://www.postgresql.org/docs/8.1/interactive/index-unique-checks.html
for more
My guess, use the name of the index to try to distinguish. Auto
generated ones will always be in the form:
pkey: <table_name>_pkey(num)
unique: <table_name>_<column_name>_key(num)
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To: pgsql-admin@postgresql.org
Cc: badalex@gmail.com, csckcac@gmail.com
Subject: Re: turn off auto index for foreign key
In-Reply-To: <34d269d40806092158vc3069e7gfd58166dee46aa2c@mail.gmail.com>
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