Re: PK Index - Removal - Mailing list pgsql-general

From Adrian Klaver
Subject Re: PK Index - Removal
Date
Msg-id 024ebf89-d65a-7de9-a2ec-808c734a77d0@aklaver.com
Whole thread Raw
In response to PK Index - Removal  (Patrick B <patrickbakerbr@gmail.com>)
List pgsql-general
On 08/10/2016 08:30 PM, Patrick B wrote:
> Hi guys,
>
> I got the following index:
>
>     CREATE INDEX "ix_mo_pk" ON "mo" USING "btree" ((("id")::"text"))
>
>
> The "ID" is my primary key:
>
>     "mo_pkey" PRIMARY KEY, "btree" ("id")
>
>
>  The ix_mo_pk index is not being used... But as it has the "ID" on it, I
> wanted to ask before dropping it.
>
> Can you guys explain me if the ix_mo_pk is safe to delete and why?

To be sure it would be nice to see from psql:

\d+ mo

>
> The mo_pkey index is being used.
>
> I'm using Postgres 9.2
>
> Thanks
> Patrick


--
Adrian Klaver
adrian.klaver@aklaver.com


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