Re: performance while importing a very large data set in to database

Ashish Kumar Singh escribió:
>
> Hello Everyone,
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> I have a very bit big database around 15 million in size, and the dump
> file is around 12 GB.
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> While importing this dump in to database I have noticed that initially
> query response time is very slow but it does improves with time.
>
> Any suggestions to improve performance after dump in imported in to
> database will be highly appreciated!
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> Regards,
>
> Ashish
>
My suggestion is:
1- Afterward of the db restore, you can do a vacuum analyze manually on
your big tables to erase all dead rows
2- Then you can reindex your big tables on any case that you use it.
3- Then apply A CLUSTER command on the right tables that have these indexes.

Regards


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