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

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Ashish Kumar Singh escribió:

Hello Everyone,

I have a very bit big database around 15 million in size, and the dump file is around 12 GB.

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!

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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