Re: need suggestion on querying big tables

On Dec 5, 2022, at 12:29 AM, Ebin Jozer <ebinjozer@gmail.com> wrote:

Hi Team,

in postgresql 11 version we have two tables of size 435 GB and 347 GB. 

if we query on single table or if we are doing inner join on both the big tables, it is not displacing any output, it keeps running 

We can see the wait event is IO and directDatafile .

Server Spec : 8 cores and  64GB RAM

PG config : 53 GB(effective_cache), 12 GB(shared buffer) 

can you please suggest some ideas , how we can query on big tables and fasten them to get the output??

Thanks & Regards,
Ebin