Re: Must I create an index for child table if master table have one?

*To clarify, if you are talking about partitioning, then you almost
certainly want to create a similar index on the child table.*
*If you are referring to a Foreign Key Constraint, then it is also good
idea to make that index, but not necessary.*

On Tue, Nov 8, 2016 at 1:46 PM, Melvin Davidson <melvin6925(at)gmail(dot)com>
wrote:

>
>
> On Tue, Nov 8, 2016 at 1:33 PM, David G. Johnston <
> david(dot)g(dot)johnston(at)gmail(dot)com> wrote:
>
>> On Tue, Nov 8, 2016 at 11:08 AM, Edmundo Robles <edmundo(at)sw-argos(dot)com>
>> wrote:
>>
>>> Hi!
>>>
>>> i have a simple question, if the master table have an index, must i
>>> have create the same index in a child table?
>>> what is the best practice for indexes in table partition ?
>>>
>>
>> Indexes are self-contained within the physical table on which they are
>> defined. The index on the master contains no rows that are present in the
>> child table.
>>
>> David J.​
>>
>>
> >Indexes are self-contained within the physical table on which they are
> defined
> *IOW, yes. *
>
> --
> *Melvin Davidson*
> I reserve the right to fantasize. Whether or not you
> wish to share my fantasy is entirely up to you.
>

--
*Melvin Davidson*
I reserve the right to fantasize. Whether or not you
wish to share my fantasy is entirely up to you.