Re: PK Index - Removal

On Thu, Aug 11, 2016 at 1:30 PM, Patrick B <patrickbakerbr(at)gmail(dot)com> 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?
>
> The mo_pkey index is being used.
>

Yes, you can drop the unused Indexes provided they are not the ones created
by primary key or unique key constraints. By your explanation, it seems
that the index "ix_mo_pk" is an user defined index (created by you), so, it
can be dropped if not used.

Regards,
Venkata B N

Fujitsu Australia